Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a56ca6d9a4b9ff…

MALICIOUS

PDF

55.8 KB Created: 2021-03-02 15:51:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7d540777881b8bf05a90dd4dbb48d281 SHA-1: e5369c2d3338e713d6bfb6d7892f6b0efbf4002c SHA-256: c9a56ca6d9a4b9ff0e6ea2daaf1ece1005d35dd45e9ed926bd8983b93094a622
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and is flagged by ClamAV as a phishing trojan. The ML classifier also indicated a high probability of maliciousness. The document body, though heavily obfuscated, appears to be a lure related to a product, directing users to external sites for potential credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8412

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://baarspo.ru/award?keyword=wine+enthusiast+18-bottle+dual-zone+wine+refrigerator PDF link annotation
    • http://vatologox.iblogger.org/xopepevisipafupirigoge.pdfIn PDF document text
    • https://kaperimivegorew.weebly.com/uploads/1/3/4/3/134371305/sawabusimededo.pdfIn PDF document text
    • https://wokulenazaxur.weebly.com/uploads/1/3/4/7/134744474/8376163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407997/normal_5fe8bc00ad038.pdfIn PDF document text
    • http://familyit.info/how_to_capitalize_an_asset_in_quickbooks28r3t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417530/normal_603d8a33b321c.pdfIn PDF document text
    • http://lotukaguw.sportsontheweb.net/xunod.pdfIn PDF document text
    • http://jaxebememapi.iblogger.org/ipad_annotate_apple_pencil.pdfIn PDF document text
    • https://firerokuk.weebly.com/uploads/1/3/1/1/131164187/jozomozirijelonuzal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485157/normal_6036940c6e718.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/hampton_bay_ceiling_fan_light_not_working.pdfIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/is_drinking_chai_tea_bad_for_you.pdfIn PDF document text

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