Malicious PDF — malware analysis report

Static analysis result for SHA-256 87f7f29bff13d2c0…

MALICIOUS

PDF

62.4 KB Created: 2020-11-11 14:48:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d03a06ecce600f3b2a3d6cc5685bf5d0 SHA-1: ecfb1825e42ea4a8140bf5acc45a738f75e12934 SHA-256: 87f7f29bff13d2c05a30fa3b43d542c45bbd106cfc059ede35e47fb553baaf74
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL pointing to 'traffking.ru', which is likely used to deliver a secondary payload or redirect the user to a malicious site. The document body, though heavily obfuscated, references a game hack, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffking.ru/123?utm_term=sword+and+sandals+2+hacked+full+unblocked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374976/normal_5f8b349abfc57.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420752/normal_5f9623b84f761.pdfIn PDF document text
    • https://wedezetepeb.weebly.com/uploads/1/3/4/5/134528952/nukutodivuxobenixubu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382976/normal_5fa3e26a529cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366993/normal_5f91524b5086e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386330/normal_5fa0a6afc1fbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406229/normal_5fa2a8e5addd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387577/normal_5fab3695e9b46.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/68085273686.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/fivef.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/wood_tool_chest_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/6053541523.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/150e1fa8-327f-46f8-a3c4-37cd7a330751/mogonukusojejusugedi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D8 5640 bytes
SHA-256: 5ba582eb8e79af6690271054209c7d7a7dca754bd518f93183d5a42ce6c5a149
font_01_sfnt_off0000ca16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA16 9992 bytes
SHA-256: fac680c1878761188c8d016745fadd54449320670514b1365dd4fe330accd4fd