Malicious PDF — malware analysis report

Static analysis result for SHA-256 69cb6e50dd63803f…

MALICIOUS

PDF

42.2 KB Created: 2020-12-10 18:49:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 23e77c117f2d8e641e080a232fb1673c SHA-1: 32b205e579ee8c4b538b6999baafbe26743a79d0 SHA-256: 69cb6e50dd63803f06cf516e59bee8f1ae51439fa881cd9e08aade7a4249f1fa
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 a clickable action, typical of screenshot lures. It contains numerous external links, including a primary suspicious URL, suggesting it's part of a link farm or phishing campaign. The ClamAV detection and ML classifier further support its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8577

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 42 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://traffset.ru/strik?utm_term=tennis+clash+gems+generator
    • https://cdn-cms.f-static.net/uploads/4383922/normal_5f951dc48cd28.pdf
    • https://cdn-cms.f-static.net/uploads/4457862/normal_5fb6db8300e23.pdf
    • https://defusisiz.weebly.com/uploads/1/3/4/5/134599350/sopoti-logekiwusomune.pdf
    • https://loxojewumiv.weebly.com/uploads/1/3/4/6/134651611/wikiz.pdf
    • https://soxajerufoxizas.weebly.com/uploads/1/3/4/8/134880654/88a598.pdf
    • https://pobanebutu.weebly.com/uploads/1/3/4/5/134592169/b1861.pdf
    • https://ganusanawopat.weebly.com/uploads/1/3/4/4/134488834/rofelodikomum_pinepuditame_takibawesa.pdf
    • https://uploads.strikinglycdn.com/files/58c27bfa-8bb9-4f16-9167-5a33d6feecbf/economic_value_added_disadvantages.pdf
    • https://static1.squarespace.com/static/5fc7281a579eee3ae06c48d5/t/5fd14131315bb0561766a576/1607549234687/htpc_build_pc_part_picker.pdf
    • https://s3.amazonaws.com/rorives/58009583700.pdf
    • https://s3.amazonaws.com/fajixe/47637062865.pdf
    • https://static1.squarespace.com/static/5fc556e688c99b6d37c4d50e/t/5fcc9dc3cded405bb8d38d9a/1607245252547/billboard_radio_bds.pdf
    • https://s3.amazonaws.com/bulozor/41464712761.pdf
    • https://s3.amazonaws.com/woxojuxafopuv/warriors_a_dangerous_path.pdf
    • https://s3.amazonaws.com/regovadeje/73760988831.pdf

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