Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d1555d1bb976dfc…

MALICIOUS

PDF

37.7 KB Created: 2021-09-19 03:08:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: b913825e05d77c9b691a4f3c9edff46a SHA-1: f2d29c6378f4a3ee9c8be067300d46161b1b9642 SHA-256: 0d1555d1bb976dfc6e275f4d7adc4a7620364bbc76111e50bc15dd3bc169ef9c
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-heavy nature and embedded clickable links. Heuristics indicate it's a link farm on disposable hosting, suggesting a campaign to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URIs point towards an attempt to trick users into navigating to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7848

Heuristics 5

  • 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 37 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://tipsclubcr.com/campannas/file/56359930073.pdf In PDF document text
    • https://upaspor.com/resimler/files/66906291735.pdfIn PDF document text
    • http://traslochimontalto.it/userfiles/files/siwomotejajanogunega.pdfIn PDF document text
    • http://yesilderecine.com/admin/editor_resim/file/duperokimeda.pdfIn PDF document text
    • https://webrekruit.com/php_codes/Scott/VieauAssociates/code/userfiles/file/87994966374.pdfIn PDF document text
    • https://pr-dienst.ch/file/wijew.pdfIn PDF document text
    • http://bidadapatidar.com/userfiles/file/rumomifofamemitadefuzi.pdfIn PDF document text
    • http://centromedicoveterinarioadda.com/userfiles/files/vipumabelufenu.pdfIn PDF document text
    • http://semanbio.com/upload/files/61431570119.pdfIn PDF document text
    • https://aordonez.com/images/contenidos/files/84451659514.pdfIn PDF document text
    • http://osmed.cz/app/webroot/files/files/27971129407.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=gta+san+andreas+online+free+downloadPDF link annotation

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