Malicious PDF — malware analysis report

Static analysis result for SHA-256 06e02e737a4bee9c…

MALICIOUS

PDF

70.7 KB Created: 2021-03-24 16:09:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: badf9e0c0e2dcca00afd25664fe25b8f SHA-1: cbfa7b97f3fa955037d9e743eea7471ae790c949 SHA-256: 06e02e737a4bee9c78070f3dd1f17f84d26770d4d5a9668ab7c232cea7feeb71
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many pointing to disposable domains, suggesting a link farm designed to attract traffic. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or malware distribution. The embedded URLs are the primary indicators of compromise, directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8850

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
  • 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.
  • 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://gimoguvi.ru/award?keyword=vaikom+muhammad+basheer+books+in+malayalam+pdf PDF link annotation
    • http://opt05.ru/caballo_de_troyalibro_verdad_o_mentira58ouz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424666/normal_6031938f8fa73.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409411/normal_5ff5efa52f887.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388177/normal_6037d4abce623.pdfIn PDF document text
    • http://efarbok.xyz/99764104704z21r7.pdfIn PDF document text
    • http://realnoe-obshenie.online/14967812522jdbai.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373519/normal_5fe51358ce952.pdfIn PDF document text
    • http://mkuu.club/zabivelerisusejofiliweluti5wb.pdfIn PDF document text
    • https://bb209e34-24c3-4901-88bd-c00af8cda710.filesusr.com/ugd/de6798_7f5972bdd4e1461fa5b34d2514ec9d30.pdf?index=trueIn PDF document text
    • https://9907981b-0bc7-4fd3-a434-169f7cdadf42.filesusr.com/ugd/575363_e33d34a68cee4c808cd5012e90107ab3.pdf?index=trueIn PDF document text
    • https://92ddf5cc-4ce7-4caf-b117-8241c553a727.filesusr.com/ugd/42bae0_83ad4639d6164b70982515c270da755d.pdf?index=trueIn PDF document text
    • https://8b1d1a20-f0f3-43d5-aeb5-704ac988d6c7.filesusr.com/ugd/9dbc1d_564362761d6d439082052a3cbcd541fe.pdf?index=trueIn PDF document text
    • http://zalogifivisob.rf.gd/30506039413.pdfIn PDF document text
    • https://d102a0f2-001f-4998-bb0a-88ac30ac05b5.filesusr.com/ugd/771ea4_0dee803a47f4409a9b96535834a3142e.pdf?index=trueIn PDF document text
    • https://ebd73b9a-b255-48a5-b781-2bd84b483b4c.filesusr.com/ugd/956c05_7fb6cd2e94794eecb2f5599c23f0a0ea.pdf?index=trueIn PDF document text
    • https://2489a575-72f7-492f-b117-28cfe4a4d2a3.filesusr.com/ugd/d81705_a2dcb7d943464c67a4c1bbafd0a25472.pdf?index=trueIn PDF document text
    • https://0fe83ef2-ed6b-4f04-a52d-31fe3c58d8d1.filesusr.com/ugd/ade4e6_205c8fdebf914358b13c9fe1df629888.pdf?index=trueIn PDF document text
    • https://144ece88-722e-4d59-a9d1-ae16887514c2.filesusr.com/ugd/48b17f_60c5fd124a6545e9ba55bbd5e52c9d7a.pdf?index=trueIn PDF document text
    • http://disefubukub.rf.gd/south_african_acapella_songs.pdfIn PDF document text

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