Malicious PDF — malware analysis report

Static analysis result for SHA-256 138f7dae746eefd6…

MALICIOUS

PDF

66.4 KB Created: 2020-12-21 08:43:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7b2580e0d32f7b973191cac343ecacbc SHA-1: 4b1a068d70fcdcf5f8a7aa1b3d1b9c41e5718c37 SHA-256: 138f7dae746eefd6c52f03f2e3c8ad00870010ec5f6af3962ef921452e0a0c59
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically 'https://traffmen.ru/strik?utm_term=archery+near+me+range'. This redirector is likely used to obscure the final destination of the phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://traffmen.ru/strik?utm_term=archery+near+me+range In PDF document text
    • https://lamalirigade.weebly.com/uploads/1/3/4/5/134595912/93a2e4.pdfIn PDF document text
    • https://nawajutexi.weebly.com/uploads/1/3/4/1/134108687/4628216.pdfIn PDF document text
    • https://xitukuwelup.weebly.com/uploads/1/3/4/3/134340625/gipij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/28b55200-d634-416a-a405-eee980805382/fulakatininibekef.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfdd38a3bf4b14aba341ea/t/5fc0e0791972c46e3cbedfb2/1606475898137/bamemobofidamenezudoxebip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d45a58a-b281-48a2-b80f-cdbc7fc44b0e/wealth_trigger_360.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/605a6842-f9e7-4e4a-ac3c-a34d47e6c60d/pulofegep.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c273a13a450babf34cb7/t/5fc47853cb3e0f5771df0210/1606711380767/42227138300.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/333fa449-4588-4380-9a01-dd4a4aecc50f/71620239883.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b1e3c87-c9a6-4c9b-b489-18a510a34e16/concepto_de_infancia.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdcb80a4f759b768e16b9b4/t/5fdcfdd49f71d1130da75c90/1608318420797/pugavi.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/vuvafus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85503117-db8c-4907-95a7-3652bc354784/gazelle_exercise_machine_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c060def0-10ea-4b41-937e-20d8cd016a89/what_is_lactaid_free_milk.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/jefifokefuloris.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9F6 5092 bytes
SHA-256: 238f4bf8a05fae9a07be3ef6d4e13ae3e257623a92e3e3dcd3cec35a476deb4c
font_01_sfnt_off0000db2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB2A 9784 bytes
SHA-256: b98f981c8fb7a995269dac9fefb98d9b244a759de576597c031fa8cc93b6047e

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