Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c3752ab95c5d74…

MALICIOUS

PDF

68.1 KB Created: 2022-05-07 20:42:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 4e71d8f93ada62b151c3df655968a4bd SHA-1: c85c140578371cf49c402b6f3d2f23a01d128e41 SHA-256: a9c3752ab95c5d748e87254d543d06570fcb101430d3140cc16e40dc23d132fd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 http://rustproofingottawa.com/userfiles/file/zedisudawa.pdf In PDF document text
    • https://nofevezim.weebly.com/uploads/1/3/4/7/134770192/7586054.pdfIn PDF document text
    • https://rinajota.weebly.com/uploads/1/3/4/7/134714435/nolil.pdfIn PDF document text
    • https://habibitoursegypt.com/ckfinder/userfiles/files/dopovozefor.pdfIn PDF document text
    • https://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/12731228707.pdfIn PDF document text
    • https://siettsantamarta.com/ckfinder/userfiles/files/2268092515.pdfIn PDF document text
    • http://frroco.com/filespath/files/20220331015154.pdfIn PDF document text
    • http://aotmoo.com/uploadfile/files/20220505_182528.pdfIn PDF document text
    • https://jurikinala.weebly.com/uploads/1/3/1/6/131636618/sisob_mizigiduv_vilukalape_pegedagepi.pdfIn PDF document text
    • https://wemafijape.weebly.com/uploads/1/3/4/7/134775870/sujerisapokinibuv.pdfIn PDF document text
    • https://zamovolipizutuj.weebly.com/uploads/1/3/1/0/131070940/c4981d24a2ebf.pdfIn PDF document text
    • https://lekimobevetej.weebly.com/uploads/1/4/1/7/141717518/1d4bf25a3a0.pdfIn PDF document text
    • http://rendszerguru.hu/admin/kcfinder/upload/files/87415335850.pdfIn PDF document text
    • http://reguitti-engineering.it/userfiles/files/40888586686.pdfIn PDF document text
    • http://wxbeimei.cn/upload/ckimg/files/202203281027252436.pdfIn PDF document text
    • https://fepunasavejupab.weebly.com/uploads/1/3/1/3/131381111/dea2c.pdfIn PDF document text
    • https://jamojibo.weebly.com/uploads/1/3/5/3/135349767/xokijojaluno.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/bajixudu.pdfIn PDF document text
    • http://dvere.eu/assets/ckeditor/kcfinder/upload/files/mutebuwarovomamowoke.pdfIn PDF document text
    • http://ipai-bg.eu/img/file/60003739381.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=aeg%20built%20in%20oven%20installation%20manual%20instructions%20pdf%20free%20printablePDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000a708.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000a708.bin)

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a708.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA708 11248 bytes
SHA-256: 43cbe0d18b277bd78e50f932f12bd31c832b0b2af948dafb768cdb966dadf7f1
font_01_sfnt_off0000c105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC105 16136 bytes
SHA-256: 96496e6aaf098b1f0de89d9339dcf740478386b8adc7e3c79ea0c8021294e67b
font_02_sfnt_off0000ea7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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