Malicious PDF — malware analysis report

Static analysis result for SHA-256 191089f3e775a288…

MALICIOUS

PDF

107.2 KB Created: 2021-01-13 14:00:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 2e464c40c13dda047575dcf4dc1b8e71 SHA-1: 5f63b6390eaa09f585698e646f8d8c95dd11a90d SHA-256: 191089f3e775a288b789058949685ad68a019e3364e94fd482b27923c37dcd13
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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.
  • 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
  • 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://trafficel.ru/wb?keyword=razor%20hoverboard%20walmart%20black%20friday PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4390069/normal_5fca04966a1dc.pdfIn PDF document text
    • https://pozefixinez.weebly.com/uploads/1/3/1/4/131454190/1c770.pdfIn PDF document text
    • https://cdn.sqhk.co/zovitamojim/6la7LJK/smashy_road_world_record_score.pdfIn PDF document text
    • https://mejefarekobuk.weebly.com/uploads/1/3/4/3/134338461/aaae54d43712e15.pdfIn PDF document text
    • https://lubuminovek.weebly.com/uploads/1/3/4/5/134590555/bebibewifov_welun_wapof.pdfIn PDF document text
    • https://site-1176155.mozfiles.com/files/1176155/tawakawijunuvelo.pdfIn PDF document text
    • https://fubasuwa.weebly.com/uploads/1/3/4/6/134611144/pojumolip.pdfIn PDF document text
    • https://mikatafa.weebly.com/uploads/1/3/1/3/131398449/vesezirusupade-sunaf.pdfIn PDF document text
    • https://cdn.sqhk.co/gabazumad/BdUBheE/planescape_torment_enhanced_edition_mods.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/73821864237.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_off00016361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16361 5600 bytes
SHA-256: b3cb5a23ace8a69d42c613c6d081d3baf2646daa3ebe82f7b36e3e439d25897a
font_01_sfnt_off0001766c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1766C 12304 bytes
SHA-256: 4a548038cb4c87987f2de768c720cab1abe7a6157b3cef27e125cdc075da20ef