Malicious PDF — malware analysis report

Static analysis result for SHA-256 3db53fd06acafe7d…

MALICIOUS

PDF

37.6 KB Created: 2021-04-07 19:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e47f5df6f455122fd8bed267cb2e5e0 SHA-1: 0b15af4bee34333811e037fcd5053f4b2d723852 SHA-256: 3db53fd06acafe7ddb39c62c2c5dd237d9f4b146b9945154bcbbf27f92159b04
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. It contains a single image and minimal text, typical of a screenshot designed to hide a clickable link. The embedded URLs point to disposable hosting, suggesting an attempt to distribute malicious content or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9303

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 37 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://soxebez.ru/strik?utm_term=sketchup+free+version+download PDF link annotation
    • http://fexuvukenix.22web.org/54423526604.pdfIn PDF document text
    • http://tifanagapi.22web.org/vacuole_structure_and_function.pdfIn PDF document text
    • http://xadixul.66ghz.com/brown_and_tan_mini_dachshund_puppies_for_sale_north_carolina.pdfIn PDF document text
    • https://cdn.sqhk.co/gasidonoda/UhiAihd/relationship_between_administration_and_management.pdfIn PDF document text
    • http://fojozefamofu.22web.org/fefeligatetiwoluzup.pdfIn PDF document text
    • http://fidafevemikiwe.mywebcommunity.org/beats_solo_2_wireless_walmart.pdfIn PDF document text
    • https://bea00909-aa88-4d38-ac88-e56db460b486.filesusrIn PDF document text
    • https://b5526579-b22d-45a0-8251-9885a72cf3eb.filesusr.com/ugd/0cd019_481241c7c2254760bb3da0722a2cd26f.pdf?index=trueIn PDF document text
    • http://bazuteterikop.rf.gd/90126849850.pdfIn PDF document text
    • http://luxotenudiwuzu.rf.gd/contact_us_form_template_php.pdfIn PDF document text

Related samples 1

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