Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e0f2945e798f940…

MALICIOUS

PDF

51.6 KB Created: 2021-09-05 05:23:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-02
MD5: 84fea26ff63b83c92ab9383cf5b1c66d SHA-1: 4483f5b4bdfb9c8782a84085dcda289d195a59d1 SHA-256: 6e0f2945e798f9401538a049363d339cc0131eaaea6d07e4573079e03d9ccb11
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7479

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://ntwbearing.com/UserFiles/File/lajitalil.pdf In PDF document text
    • http://krupongs.com//images/file/53712945725.pdfIn PDF document text
    • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/26c3ac99244ebb94bdf661644a603614/pelovazuzojeduja.pdfIn PDF document text
    • http://www.vljainandco.com/userfiles/files/40047012644.pdfIn PDF document text
    • http://skene.es/userfiles/file/ralebediwegozofodusu.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161039fa5547d7---fudijadabanexafubixuf.pdfIn PDF document text
    • http://jungam21.com/upfiles/file/1629937602.pdfIn PDF document text
    • http://xaydunglenguyen.vn/upload/files/f91e24.pdfIn PDF document text
    • http://cn-biyoute.com/d/files/13371661287.pdfIn PDF document text
    • https://www.adoz.cz/ckfinder/userfiles/files/67519379087.pdfIn PDF document text
    • http://espacioschillout.es/images/admin/file/86215694851.pdfIn PDF document text
    • https://theelementrama9.com/userfiles/files/71574114412.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=savage+sam+book+pdfPDF link annotation

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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