Malicious PDF — malware analysis report

Static analysis result for SHA-256 7be515be266a5ed6…

MALICIOUS

PDF

40.7 KB Created: 2020-11-25 09:29:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54a11f543e0509973be6323c8ebf6bec SHA-1: 6400c645b9a28bcce5161d5a8d7e2f7bbf737988 SHA-256: 7be515be266a5ed68a646ec283399203cd7dd634a353b47f12e09f8b120a5e09
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable link. The ClamAV detection and ML classifier further support its malicious classification. The document contains numerous external links, suggesting it is part of a link farm designed to distribute malicious content or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7507

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffine.ru/strik?utm_term=build+royale+hacker
    • https://cdn-cms.f-static.net/uploads/4368748/normal_5f9175507bc83.pdf
    • https://cdn-cms.f-static.net/uploads/4365552/normal_5f8b0bae06311.pdf
    • https://cdn-cms.f-static.net/uploads/4420599/normal_5fba866e21aeb.pdf
    • https://cdn-cms.f-static.net/uploads/4447108/normal_5fb53b551abaa.pdf
    • https://cdn-cms.f-static.net/uploads/4366993/normal_5f8839053e43a.pdf
    • https://cdn-cms.f-static.net/uploads/4384483/normal_5f8c747c4f38b.pdf
    • https://mogijoduvide.weebly.com/uploads/1/3/0/8/130814471/6f509a.pdf
    • https://xabopefasuliwik.weebly.com/uploads/1/3/4/4/134445681/6292318.pdf
    • https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/jepenisobatidumogoja.pdf
    • https://cdn-cms.f-static.net/uploads/4414498/normal_5fba615697f26.pdf
    • https://cdn-cms.f-static.net/uploads/4365562/normal_5f86f5a82c737.pdf
    • https://cdn-cms.f-static.net/uploads/4384037/normal_5f9c2d5d11d91.pdf
    • https://cdn-cms.f-static.net/uploads/4422148/normal_5fa96552d6991.pdf
    • https://cdn-cms.f-static.net/uploads/4495240/normal_5fada2ae0b129.pdf
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/rajobogupur_fupajaxaf_nodiwugev_bufilexisonovum.pdf

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