Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e441bbf244fde8…

MALICIOUS

PDF

79.1 KB Created: 2022-04-05 22:00:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: 1a987c0df08817275530634ec037fad0 SHA-1: c3249b79522bb4e7a7b5ada5560cdc4491632607 SHA-256: b6e441bbf244fde852388912a008fe411811e01201d521fc616e1139a83483be
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 https://gizalikujaxemif.weebly.com/uploads/1/3/4/6/134606641/2790348.pdf In PDF document text
    • https://serirufudo.weebly.com/uploads/1/3/4/7/134712976/wamiveri.pdfIn PDF document text
    • http://twapp.freshkon.com/upload/files/78159056468.pdfIn PDF document text
    • https://stayinbranson.com/ckfinder/triplebuserfiles/file/28906265584.pdfIn PDF document text
    • http://kazbani.ru/kcfinder/upload/files/93416507621.pdfIn PDF document text
    • https://metesanej.weebly.com/uploads/1/3/1/8/131858044/c2ee42.pdfIn PDF document text
    • http://bilcafe.it/userfiles/file/84878543511.pdfIn PDF document text
    • http://caogenzhiben.com/filespath/files/20220222170327.pdfIn PDF document text
    • http://themetamorphoseprogram.com/userfiles/file/71909416677.pdfIn PDF document text
    • https://fevenegor.weebly.com/uploads/1/3/1/3/131380973/7703995.pdfIn PDF document text
    • https://pejagefetem.weebly.com/uploads/1/3/0/8/130815482/fafeselizidirukasu.pdfIn PDF document text
    • https://rowemuvirota.weebly.com/uploads/1/3/6/0/136089617/difitefakugor-zolovolux.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623e92ef39ed2---bitulejukike.pdfIn PDF document text
    • https://xowatugafax.weebly.com/uploads/1/3/4/8/134899368/c6c701.pdfIn PDF document text
    • http://ellipsisnovel.com/file_space/files/9532726746.pdfIn PDF document text
    • http://ambvetfanini.eu/userfiles/files/tululin.pdfIn PDF document text
    • https://favoronul.weebly.com/uploads/1/3/4/4/134463409/xemepavuf.pdfIn PDF document text
    • http://schneider-glossa.ru/kcfinder/upload/files/xitotidilo.pdfIn PDF document text
    • https://gagasanriau.com/a450d92cb6be01b3b3669c18bfca7901/kcfinder/upload/files/29416055890.pdfIn PDF document text
    • https://fudesatalaponu.weebly.com/uploads/1/3/2/7/132710537/0c7ab812.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user//file/_0048152001645463332.pdfIn PDF document text
    • https://ufcedu.az/public/uploads/files/558210635.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=homelite%20leaf%20blower%20fuel%20linePDF link annotation
    • https://nemulokisen.weebly.com/uploads/1/3/4/4/134492012/desirafafafeju.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000cd21.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cd21.bin)

Related samples 8

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_off0000cd21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD21 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e533.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE533 18172 bytes
SHA-256: 7fb6920c070b93ee396cb4b00048daf79761c15a113b6d4ebf73c72f510406c3
font_02_sfnt_off000114f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114F8 10524 bytes
SHA-256: af2e0978877a95d51ca978971a24cbc3a94a43e15fb25aba2ca978121d36e37f

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