Malicious PDF — malware analysis report

Static analysis result for SHA-256 39ff01179f2ecf69…

MALICIOUS

PDF

50.6 KB Created: 2021-02-09 11:07:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2b42811b926313e38b4bf2006651414c SHA-1: 5a5105170d375bdd1a646cd11f6ac3038c2a1fd6 SHA-256: 39ff01179f2ecf699bae1cf0f2e5044cd199aac172948d8e10525c3a386458cb
184 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to disposable domains, which is characteristic of SEO link farms or phishing lures. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to malicious content or exploit kits. No scripts were extracted, but the structure and URL patterns suggest a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7328

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://leonvi.ru/aws?utm_term=i%2527+m+a+believer+drum+sheet+music PDF link annotation
    • https://marodesama.weebly.com/uploads/1/3/5/3/135349202/gelerumonosuvefolo.pdfIn PDF document text
    • http://wutugavefezaza.22web.org/buyer_s_guide_apple_watch.pdfIn PDF document text
    • https://bagugesi.weebly.com/uploads/1/3/0/7/130775983/4885762.pdfIn PDF document text
    • https://cdn.sqhk.co/sipebililofo/jf6jijj/kalav.pdfIn PDF document text
    • https://levalezekavazif.weebly.com/uploads/1/3/4/6/134639406/5743433.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/OijTjf1/miami_dade_schools_coronavirus_dashboard.pdfIn PDF document text
    • https://cdn.sqhk.co/namulofilox/hihgUgc/word_chums_game.pdfIn PDF document text
    • https://cdn.sqhk.co/mujawiru/cI8nTdr/pevudix.pdfIn PDF document text
    • https://detimuveruriwus.weebly.com/uploads/1/3/1/8/131872178/zegexev-rodelobofuk-turig-gepuzikuki.pdfIn PDF document text
    • https://cdn.sqhk.co/panufarubel/e8705iV/hide_and_seek_recovery_gainesville_florida.pdfIn PDF document text
    • https://cdn.sqhk.co/korokotuduki/PgeGlhf/shadow_of_war_the_arena.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabalero/gc8ijjh/nusewakoxojemeb.pdfIn PDF document text
    • http://vogizopenukese.epizy.com/zumuvapuvigudiralotatipe.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/characteristics_of_civilization_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/24196235391.pdfIn PDF document text

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