Malicious PDF — malware analysis report

Static analysis result for SHA-256 f319992d9b2081de…

MALICIOUS

PDF

67.6 KB Created: 2020-11-24 19:00:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0614d4e53051aa19d6eb2b41a36fafff SHA-1: a307480efac9e50979567525ceb10dfe8db6926d SHA-256: f319992d9b2081de830089a95b6c79408e81db0e89ac28364b04652de6474076
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, a common tactic for link farms or phishing lures, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics confirm its malicious nature. The embedded URL and the document's structure suggest an attempt to redirect users to potentially malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9035

Heuristics 4

  • 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
  • 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://traffking.ru/aws?utm_term=format+factory+software++for+pc
    • https://cdn-cms.f-static.net/uploads/4451035/normal_5fb591ab45cf2.pdf
    • https://cdn-cms.f-static.net/uploads/4383452/normal_5f9ba6fdc2356.pdf
    • https://cdn-cms.f-static.net/uploads/4404290/normal_5fa002f567f47.pdf
    • https://rowegodidevonu.weebly.com/uploads/1/3/4/4/134468430/dipajiwovisefusip.pdf
    • https://cdn-cms.f-static.net/uploads/4414678/normal_5f969d89e81f3.pdf
    • https://satobolusiv.weebly.com/uploads/1/3/1/3/131398412/e7e3064f53d.pdf
    • https://cdn-cms.f-static.net/uploads/4449422/normal_5fbaa5c241efb.pdf
    • https://wenojuzak.weebly.com/uploads/1/3/4/2/134265903/fimuwepovo-wemenetufoxage-wizotib.pdf
    • https://cdn-cms.f-static.net/uploads/4484114/normal_5fb7661572c5a.pdf
    • https://cdn-cms.f-static.net/uploads/4381297/normal_5f9b2aba72276.pdf
    • https://uploads.strikinglycdn.com/files/36a2f27e-8ab0-4a87-981e-179567e66a8c/rumijuxosapix.pdf
    • https://uploads.strikinglycdn.com/files/72f6491a-9c1f-4ffc-92c5-8c2a8e324d6f/fps_creator_full_version_apk.pdf
    • https://uploads.strikinglycdn.com/files/3713aa08-479d-417b-90e7-fef67cc051d5/16252022708.pdf
    • https://uploads.strikinglycdn.com/files/a1cb390b-0d1c-423a-9670-f374db56d9f9/nagoxaforejimamaxunodis.pdf
    • https://uploads.strikinglycdn.com/files/7a24a35d-8777-4212-ab66-cb8a14edd0dc/11002826712.pdf

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