Malicious PDF — malware analysis report

Static analysis result for SHA-256 70e664edf1c97a17…

MALICIOUS

PDF

49.6 KB Created: 2020-11-20 08:51:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf2b6422c0d46f050a29ab9d9048fb84 SHA-1: 03158b1d285468f332887fcf67c63762676571c3 SHA-256: 70e664edf1c97a176419f1c3400c441ab59b7897ee33d29b560c7519a517aa52
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is designed as an image-only lure, typical of phishing campaigns, to entice users to click on external links. The heuristic 'PDF_IMAGE_LURE' indicates a screenshot was used to hide a clickable action. The primary external URL identified, 'https://traffnew.ru/strik?utm_term=beautiful+hymn+arrangements+for+pian', is highly suspicious and likely serves as the initial landing page for a malicious campaign. ClamAV also detected this file as 'Pdf.Phishing.Trojan'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6502

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 49 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://traffnew.ru/strik?utm_term=beautiful+hymn+arrangements+for+pian
    • https://cdn-cms.f-static.net/uploads/4379726/normal_5fa55bf0371c1.pdf
    • https://belaputeze.weebly.com/uploads/1/3/4/5/134515271/aa58f1731.pdf
    • https://kibodowusi.weebly.com/uploads/1/3/4/5/134588916/7293194f4c2b0.pdf
    • https://liwobolavus.weebly.com/uploads/1/3/4/1/134131542/vuwikafuguvozo.pdf
    • https://cdn-cms.f-static.net/uploads/4416810/normal_5fa8b5625f412.pdf
    • https://jelafabonopavu.weebly.com/uploads/1/3/4/4/134443296/piwegesuvimod.pdf
    • https://cdn-cms.f-static.net/uploads/4393356/normal_5f9d04c213604.pdf
    • https://kolerekum.weebly.com/uploads/1/3/4/3/134350376/rixaz.pdf
    • https://s3.amazonaws.com/jebokizez/bright_house_remote_control_manual.pdf
    • https://s3.amazonaws.com/remeranexe/fepisasagejatejitibume.pdf
    • https://s3.amazonaws.com/kovilowab/23712893575.pdf
    • https://s3.amazonaws.com/firigugixujotov/webcric.com_live_watch.pdf

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