Malicious PDF — malware analysis report

Static analysis result for SHA-256 97d250dece7beeb2…

MALICIOUS

PDF

73.6 KB Created: 2021-03-17 14:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c246a3fd88558053326349d5b7866a04 SHA-1: 477fde77eea73da37dc1a64825da0fbc7cca1189 SHA-256: 97d250dece7beeb2efa532487c606b88cdbee6bfc2e32b492417e40f9e91c11e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to 'soxebez.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains keywords related to game hacking, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://soxebez.ru/wix?keyword=sb+game+hacker+for+ios+no+jailbreak
    • https://static.s123-cdn-static.com/uploads/4465147/normal_5fc80bf220a6d.pdf
    • https://cdn-cms.f-static.net/uploads/4493610/normal_5feaedef02c92.pdf
    • https://static.s123-cdn-static.com/uploads/4446016/normal_5feb574aafd01.pdf
    • https://cdn-cms.f-static.net/uploads/4368485/normal_602c2ebaadbdd.pdf
    • https://static.s123-cdn-static.com/uploads/4481520/normal_5fe1535703dac.pdf
    • https://cdn-cms.f-static.net/uploads/4455387/normal_603356e9a0008.pdf
    • https://static.s123-cdn-static.com/uploads/4380527/normal_5ff97cc3836f4.pdf
    • http://zebakabum.iblogger.org/rigilowisakavetazu.pdf
    • http://likemulig.iblogger.org/hp_officejet_7310_all-in-one_printer_troubleshooting.pdf
    • http://sujatafuluwariv.22web.org/grammarian_toastmasters_sheet.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xuperag.epizy.com/divisibility_puzzle_worksheet.pdf
    • https://uploads.strikinglycdn.com/files/dc5651a9-a7c1-4b54-824a-279bda34f184/what_is_problem_definition_in_system_analysis_and_design.pdf
    • http://jenowuzax.rf.gd/fortnite_aimbot_pc_season_x.pdf
    • https://uploads.strikinglycdn.com/files/fc16ab29-1e66-4ca2-b541-73b1c5420e64/30771585519.pdf
    • http://xutetutadipuvux.rf.gd/arithmetic_sequence_word_problems.pdf
    • https://s3.amazonaws.com/gulapore/lr_frieza_campaign_guide.pdf
    • https://s3.amazonaws.com/sudevejerifu/82492306618.pdf
    • https://s3.amazonaws.com/feseni/12182462635.pdf
    • https://uploads.strikinglycdn.com/files/b01bde9d-aa85-4b79-93b8-dcea5020ace3/68770117166.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0cf.bin
f00a91ca8c6a4dfbd54f62d8bfba56f2fe9814605d7b8d5b03e25b4ba637de5e
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CF 5680 bytes
font_01_sfnt_off0000f405.bin
4c3d255e02e6b406b8e1cfa816b9655e4ab1576e3150c1e9238bcd2143ccef0d
pdf-font-stream PDF embedded font (sfnt) at offset 0xF405 10960 bytes