Malicious PDF — malware analysis report

Static analysis result for SHA-256 4258c678385a3641…

MALICIOUS

PDF

67.7 KB Created: 2022-04-02 12:45:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 129d4b7f110a981b08d8836708dbba94 SHA-1: b7dc0c51192bb026701b81296ca0cdbc0f3fa5fa SHA-256: 4258c678385a36419f0d60005f0c9178a8a7b8f8d915ca0d05ed6b31cfe2da1a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://yubit.co.za/YmrXLWy8?keyword=ingenuity%20inlighten%20twinkle%20tails%20bouncer%20instructions PDF link annotation
    • https://kodikitowi.weebly.com/uploads/1/3/4/7/134768405/jones_gasoz_woxefadodetudi_diwegivabomop.pdfIn PDF document text
    • https://revotilam.weebly.com/uploads/1/3/4/7/134732497/849f1a3f4aa9c.pdfIn PDF document text
    • https://etimes.mn/uploads/files/88334471619.pdfIn PDF document text
    • https://loxujuzif.weebly.com/uploads/1/3/4/3/134368844/846a1d839a3477.pdfIn PDF document text
    • https://sewusadata.weebly.com/uploads/1/3/5/4/135401056/damajufidu-fatunezu.pdfIn PDF document text
    • https://volandovia.it/public/fileeditor/file/59113731165.pdfIn PDF document text
    • http://tweddlefoto.com/files_contenidos/upload/files/3516133099.pdfIn PDF document text
    • https://bevibobozile.weebly.com/uploads/1/3/4/7/134700853/jujejubozekuw_zibakolijefevi_xedewab_fomijatonem.pdfIn PDF document text
    • http://itena.si/uporabnik/file/gosupegus.pdfIn PDF document text
    • https://juwibaviwexufeb.weebly.com/uploads/1/3/0/7/130739975/4739.pdfIn PDF document text
    • https://rowafitiw.weebly.com/uploads/1/3/4/6/134608100/gujemuxedaweke.pdfIn PDF document text
    • https://pumilisagif.weebly.com/uploads/1/3/4/3/134387603/dejuripoxepaz.pdfIn PDF document text
    • https://gifezimudafero.weebly.com/uploads/1/3/4/3/134312010/7935850.pdfIn PDF document text
    • http://firegallery.ru/img/upload/rozidan.pdfIn PDF document text
    • http://okna-kurska.ru/page_edit/_samples/userfiles/files/sufife.pdfIn PDF document text
    • https://tapizijivuvol.weebly.com/uploads/1/3/2/6/132696465/vigufab.pdfIn PDF document text
    • http://pastadimatteo.com/ckfinder/userfiles/files/magapasefopiwiluvitalenuz.pdfIn PDF document text
    • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/412a751c5.pdfIn PDF document text
    • http://year-c.com/upload_fck/file/2022-2-17/20220217015211194608.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16209dfa15cfe2---fafimobuvomipojugox.pdfIn PDF document text
    • https://lugilabujenubo.weebly.com/uploads/1/3/4/3/134320616/gojitosor.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA194 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000b9a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9A6 16852 bytes
SHA-256: 32388b041b40f2ad245720184c90554ac4d673cf5aaa55d1f19528ea02ada962
font_02_sfnt_off0000e5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B3 10992 bytes
SHA-256: 557550c7a7c128d70cf3351c5bee76723c9008337d8f322094ac112c9734836c

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