Malicious PDF — malware analysis report

Static analysis result for SHA-256 968f9044af775dd0…

MALICIOUS

PDF

69.6 KB Created: 2021-02-24 02:58:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 84176dc9d4bdb9c4abd01d47738e4a51 SHA-1: a9590de10cbd8fc33c5e817a119a814eadfbd0e3 SHA-256: 968f9044af775dd0eaaef707c8ce9afceb0a77107297735cffd0a06050348fb6
124 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9588

Heuristics 4

  • 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 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://leonvi.ru/aws?utm_term=what+role+does+chlorophyll+play+in+the+process+of+photosynthesis PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4466659/normal_601e885be5f7c.pdfIn PDF document text
    • http://temilops.xyz/elifoot_19_20_pro_apk_mods7ydu.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/EjhZYRr/30675392905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371806/normal_60178bb13895d.pdfIn PDF document text
    • http://khareedforosh.com/megalavir14jq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_602ad1ae35efd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411480/normal_5fdc36b832a9c.pdfIn PDF document text
    • https://cdn.sqhk.co/tesadubozino/f9lA1gd/lock_screen_passcode_not_working.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530036/normal_5fe6272c50fa4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495985/normal_600b62c83b9f8.pdfIn PDF document text
    • http://bluebadgeform.com/tebexadezeraxerosifad9ugt5.pdfIn PDF document text
    • http://siteznakomstv69.space/aadhar_card_enrollment_form_in_word_format3ca0t.pdfIn PDF document text
    • https://cdn.sqhk.co/mekerijiwuv/xifjdWv/werebonuzisuzawigaveregew.pdfIn PDF document text
    • http://in-step.shop/79307627934q6s3v.pdfIn PDF document text
    • https://cdn.sqhk.co/wiluxuko/hblxDih/best_code_editor_mac_free.pdfIn PDF document text
    • http://wssummer.space/seagate_expansion_desktop_drive_2tb_srd00f2_power_supply5ja6t.pdfIn PDF document text

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