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hashcat/src/modules/module_10600.c

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/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
#include "common.h"
#include "types.h"
#include "modules.h"
#include "bitops.h"
#include "convert.h"
#include "shared.h"
static const u32 ATTACK_EXEC = ATTACK_EXEC_INSIDE_KERNEL;
static const u32 DGST_POS0 = 3;
static const u32 DGST_POS1 = 7;
static const u32 DGST_POS2 = 2;
static const u32 DGST_POS3 = 6;
static const u32 DGST_SIZE = DGST_SIZE_4_8;
static const u32 HASH_CATEGORY = HASH_CATEGORY_DOCUMENTS;
static const char *HASH_NAME = "PDF 1.7 Level 3 (Acrobat 9)";
static const u64 KERN_TYPE = 1410;
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
| OPTI_TYPE_PRECOMPUTE_INIT
| OPTI_TYPE_EARLY_SKIP
| OPTI_TYPE_NOT_ITERATED
| OPTI_TYPE_APPENDED_SALT
| OPTI_TYPE_RAW_HASH;
static const u64 OPTS_TYPE = OPTS_TYPE_STOCK_MODULE
| OPTS_TYPE_PT_GENERATE_BE
| OPTS_TYPE_ST_ADD80
| OPTS_TYPE_ST_ADDBITS15
| OPTS_TYPE_HASH_COPY;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "$pdf$5*5*256*-1028*1*16*28562274676426582441147358074521*127*a3aab04cff2c536118870976d768f1fdd445754d6b2dd81fba10bb6e742acd7f2856227467642658244114735807452100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000*127*00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000*32*0000000000000000000000000000000000000000000000000000000000000000*32*0000000000000000000000000000000000000000000000000000000000000000";
u32 module_attack_exec (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ATTACK_EXEC; }
u32 module_dgst_pos0 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS0; }
u32 module_dgst_pos1 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS1; }
u32 module_dgst_pos2 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS2; }
u32 module_dgst_pos3 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS3; }
u32 module_dgst_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_SIZE; }
u32 module_hash_category (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_CATEGORY; }
const char *module_hash_name (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_NAME; }
u64 module_kern_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return KERN_TYPE; }
u32 module_opti_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTI_TYPE; }
u64 module_opts_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTS_TYPE; }
u32 module_salt_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return SALT_TYPE; }
const char *module_st_hash (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_HASH; }
const char *module_st_pass (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_PASS; }
typedef struct pdf
{
int V;
int R;
int P;
int enc_md;
u32 id_buf[8];
u32 u_buf[32];
u32 o_buf[32];
int id_len;
int o_len;
int u_len;
u32 rc4key[2];
u32 rc4data[2];
} pdf_t;
static const char *SIGNATURE_PDF = "$pdf$";
static const int ROUNDS_PDF17L8 = 64;
u64 module_esalt_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u64 esalt_size = (const u64) sizeof (pdf_t);
return esalt_size;
}
u32 module_pw_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const bool optimized_kernel = (hashconfig->opti_type & OPTI_TYPE_OPTIMIZED_KERNEL);
// https://www.pdflib.com/knowledge-base/pdf-password-security/encryption/
const u32 pw_max = (optimized_kernel == false) ? 127 : hashconfig->pw_max;
return pw_max;
}
int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, const char *line_buf, MAYBE_UNUSED const int line_len)
{
u32 *digest = (u32 *) digest_buf;
pdf_t *pdf = (pdf_t *) esalt_buf;
hc_token_t token;
memset (&token, 0, sizeof (hc_token_t));
token.token_cnt = 16;
token.signatures_cnt = 1;
token.signatures_buf[0] = SIGNATURE_PDF;
token.len[0] = 5;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
token.sep[1] = '*';
token.len[1] = 1;
token.attr[1] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[2] = '*';
token.len[2] = 1;
token.attr[2] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[3] = '*';
token.len[3] = 3;
token.attr[3] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[4] = '*';
token.len_min[4] = 1;
token.len_max[4] = 11;
token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH;
token.sep[5] = '*';
token.len[5] = 1;
token.attr[5] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[6] = '*';
token.len_min[6] = 1;
token.len_max[6] = 4;
token.attr[6] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[7] = '*';
token.len_min[7] = 0;
token.len_max[7] = 1024;
token.attr[7] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
token.sep[8] = '*';
token.len_min[8] = 1;
token.len_max[8] = 4;
token.attr[8] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[9] = '*';
token.len_min[9] = 0;
token.len_max[9] = 1024;
token.attr[9] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
token.sep[10] = '*';
token.len_min[10] = 1;
token.len_max[10] = 4;
token.attr[10] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[11] = '*';
token.len_min[11] = 0;
token.len_max[11] = 1024;
token.attr[11] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
token.sep[12] = '*';
token.len_min[12] = 1;
token.len_max[12] = 4;
token.attr[12] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[13] = '*';
token.len_min[13] = 0;
token.len_max[13] = 1024;
token.attr[13] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
token.sep[14] = '*';
token.len_min[14] = 1;
token.len_max[14] = 4;
token.attr[14] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[15] = '*';
token.len_min[15] = 0;
token.len_max[15] = 1024;
token.attr[15] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
const u8 *V_pos = token.buf[1];
const u8 *R_pos = token.buf[2];
const u8 *bits_pos = token.buf[3];
const u8 *enc_md_pos = token.buf[5];
const u8 *u_len_pos = token.buf[8];
const u8 *u_buf_pos = token.buf[9];
// validate data
const int V = strtol ((const char *) V_pos, NULL, 10);
const int R = strtol ((const char *) R_pos, NULL, 10);
int vr_ok = 0;
if ((V == 5) && (R == 5)) vr_ok = 1;
if ((V == 5) && (R == 6)) vr_ok = 1;
if (vr_ok == 0) return (PARSER_SALT_VALUE);
const int bits = strtol ((const char *) bits_pos, NULL, 10);
if (bits != 256) return (PARSER_SALT_VALUE);
int enc_md = strtol ((const char *) enc_md_pos, NULL, 10);
if ((enc_md != 0) && (enc_md != 1)) return (PARSER_SALT_VALUE);
const u32 u_len = hc_strtoul ((const char *) u_len_pos, NULL, 10);
// copy data to esalt
if (u_len < 40) return (PARSER_SALT_VALUE);
if (is_valid_hex_string (u_buf_pos, 80) == false) return (PARSER_SALT_ENCODING);
for (int i = 0, j = 0; i < 8 + 2; i += 1, j += 8)
{
pdf->u_buf[i] = hex_to_u32 (&u_buf_pos[j]);
}
salt->salt_buf[0] = pdf->u_buf[8];
salt->salt_buf[1] = pdf->u_buf[9];
salt->salt_len = 8;
salt->salt_iter = ROUNDS_PDF17L8;
digest[0] = byte_swap_32 (pdf->u_buf[0]);
digest[1] = byte_swap_32 (pdf->u_buf[1]);
digest[2] = byte_swap_32 (pdf->u_buf[2]);
digest[3] = byte_swap_32 (pdf->u_buf[3]);
digest[4] = byte_swap_32 (pdf->u_buf[4]);
digest[5] = byte_swap_32 (pdf->u_buf[5]);
digest[6] = byte_swap_32 (pdf->u_buf[6]);
digest[7] = byte_swap_32 (pdf->u_buf[7]);
// extra
if (hashconfig->opti_type & OPTI_TYPE_OPTIMIZED_KERNEL)
{
digest[0] -= SHA256M_A;
digest[1] -= SHA256M_B;
digest[2] -= SHA256M_C;
digest[3] -= SHA256M_D;
digest[4] -= SHA256M_E;
digest[5] -= SHA256M_F;
digest[6] -= SHA256M_G;
digest[7] -= SHA256M_H;
}
salt->salt_buf[2] = 0x80;
return (PARSER_OK);
}
int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const void *digest_buf, MAYBE_UNUSED const salt_t *salt, MAYBE_UNUSED const void *esalt_buf, MAYBE_UNUSED const void *hook_salt_buf, MAYBE_UNUSED const hashinfo_t *hash_info, char *line_buf, MAYBE_UNUSED const int line_size)
{
const int line_len = snprintf (line_buf, line_size, "%s", hash_info->orighash);
return line_len;
}
void module_init (module_ctx_t *module_ctx)
{
module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT;
module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT;
module_ctx->module_attack_exec = module_attack_exec;
module_ctx->module_benchmark_esalt = MODULE_DEFAULT;
module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT;
module_ctx->module_benchmark_mask = MODULE_DEFAULT;
module_ctx->module_benchmark_charset = MODULE_DEFAULT;
module_ctx->module_benchmark_salt = MODULE_DEFAULT;
module_ctx->module_build_plain_postprocess = MODULE_DEFAULT;
module_ctx->module_deep_comp_kernel = MODULE_DEFAULT;
module_ctx->module_deprecated_notice = MODULE_DEFAULT;
module_ctx->module_dgst_pos0 = module_dgst_pos0;
module_ctx->module_dgst_pos1 = module_dgst_pos1;
module_ctx->module_dgst_pos2 = module_dgst_pos2;
module_ctx->module_dgst_pos3 = module_dgst_pos3;
module_ctx->module_dgst_size = module_dgst_size;
module_ctx->module_dictstat_disable = MODULE_DEFAULT;
module_ctx->module_esalt_size = module_esalt_size;
module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
module_ctx->module_extra_tuningdb_block = MODULE_DEFAULT;
module_ctx->module_forced_outfile_format = MODULE_DEFAULT;
module_ctx->module_hash_binary_count = MODULE_DEFAULT;
module_ctx->module_hash_binary_parse = MODULE_DEFAULT;
module_ctx->module_hash_binary_save = MODULE_DEFAULT;
module_ctx->module_hash_decode_postprocess = MODULE_DEFAULT;
module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
module_ctx->module_hash_decode_zero_hash = MODULE_DEFAULT;
module_ctx->module_hash_decode = module_hash_decode;
module_ctx->module_hash_encode_status = MODULE_DEFAULT;
module_ctx->module_hash_encode_potfile = MODULE_DEFAULT;
module_ctx->module_hash_encode = module_hash_encode;
module_ctx->module_hash_init_selftest = MODULE_DEFAULT;
module_ctx->module_hash_mode = MODULE_DEFAULT;
module_ctx->module_hash_category = module_hash_category;
module_ctx->module_hash_name = module_hash_name;
module_ctx->module_hashes_count_min = MODULE_DEFAULT;
module_ctx->module_hashes_count_max = MODULE_DEFAULT;
module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_size = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_init = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_term = MODULE_DEFAULT;
module_ctx->module_hook12 = MODULE_DEFAULT;
module_ctx->module_hook23 = MODULE_DEFAULT;
module_ctx->module_hook_salt_size = MODULE_DEFAULT;
module_ctx->module_hook_size = MODULE_DEFAULT;
module_ctx->module_jit_build_options = MODULE_DEFAULT;
module_ctx->module_jit_cache_disable = MODULE_DEFAULT;
module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
module_ctx->module_kernel_loops_max = MODULE_DEFAULT;
module_ctx->module_kernel_loops_min = MODULE_DEFAULT;
module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
module_ctx->module_kern_type = module_kern_type;
module_ctx->module_kern_type_dynamic = MODULE_DEFAULT;
module_ctx->module_opti_type = module_opti_type;
module_ctx->module_opts_type = module_opts_type;
module_ctx->module_outfile_check_disable = MODULE_DEFAULT;
module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
module_ctx->module_potfile_disable = MODULE_DEFAULT;
module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
module_ctx->module_pwdump_column = MODULE_DEFAULT;
module_ctx->module_pw_max = module_pw_max;
module_ctx->module_pw_min = MODULE_DEFAULT;
module_ctx->module_salt_max = MODULE_DEFAULT;
module_ctx->module_salt_min = MODULE_DEFAULT;
module_ctx->module_salt_type = module_salt_type;
module_ctx->module_separator = MODULE_DEFAULT;
module_ctx->module_st_hash = module_st_hash;
module_ctx->module_st_pass = module_st_pass;
module_ctx->module_tmp_size = MODULE_DEFAULT;
module_ctx->module_unstable_warning = MODULE_DEFAULT;
module_ctx->module_warmup_disable = MODULE_DEFAULT;
}
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