Malicious PDF — malware analysis report

Static analysis result for SHA-256 34485489aa647c36…

MALICIOUS

PDF

42.2 KB Created: 2021-02-28 14:42:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d2e08cd83dacee33cecab6120edaf680 SHA-1: f7fef51479546a8389bfe4ae835891f8ae8e92f2 SHA-256: 34485489aa647c36d4b643aea8b4117587ecbf1bd0665ce0dd2de880578f4ca0
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by multiple heuristics and a machine learning classifier, indicating it's likely a phishing or malware distribution lure. The PDF contains a large number of external links, many pointing to disposable domains, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the presence of external URLs and the 'image-only document with action trigger' heuristic point towards a phishing or download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8137

Heuristics 6

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 42 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 https://fokemale.ru/strik?utm_term=la+gallina+degollada+horacio+quiroga+personajes PDF link annotation
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    • http://copyrightviolationcenters.com/90244076419g59ef.pdfIn PDF document text
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    • https://cdn.sqhk.co/manigonodapu/riNvygi/black_coffee_increase_testosterone.pdfIn PDF document text
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    • https://cdn.sqhk.co/zetanitanedo/Bhjdhji/mubedubedoz.pdfIn PDF document text
    • https://jitebogegamoma.weebly.com/uploads/1/3/4/7/134761197/zevidaxutapuweworoma.pdfIn PDF document text
    • https://cdn.sqhk.co/lasijutag/Rghgfix/miralax_dosage_for_dogs.pdfIn PDF document text
    • http://maska-respirator.com/49603676485njpdl.pdfIn PDF document text
    • https://cdn.sqhk.co/nakunadubux/gdMhcjb/car_mechanic_simulator_2018_xbox_one_review.pdfIn PDF document text
    • https://cdn.sqhk.co/rijunawep/Boigy92/smalls_auction_live_bidding_strategy.pdfIn PDF document text
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    • https://s3.amazonaws.com/sorogamat/vubiwo.pdfIn PDF document text
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    • https://s3.amazonaws.com/dibedamoka/6303081986.pdfIn PDF document text
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