Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87dea6b58743aa6…

MALICIOUS

PDF

76.4 KB Created: 2022-03-26 04:41:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: ad36725931812aaf4ed169edb5b2180a SHA-1: 4fd9b29f8c7c647b0ed0274cf9db73ab769d6f85 SHA-256: f87dea6b58743aa60501a42dc618c30c48fad5d02879a7b38920bae13d529954
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://wirut.co.za/YmrXLWy8?keyword=how%20to%20measure%20transformer%20va PDF link annotation
    • https://sisajubiji.weebly.com/uploads/1/3/0/9/130969075/0c28fb5c8a151.pdfIn PDF document text
    • https://fofosororu.weebly.com/uploads/1/3/4/6/134642422/3168350.pdfIn PDF document text
    • https://pagapepekajarop.weebly.com/uploads/1/3/4/3/134307963/bfffc959f2.pdfIn PDF document text
    • https://mopirolelawa.weebly.com/uploads/1/3/4/0/134012876/tozesutikun_zuwodadisaj_nupivaso_dojemelikome.pdfIn PDF document text
    • https://vinetiwufo.weebly.com/uploads/1/3/5/3/135305890/mivonofa_rofokagibekidi_jexidezu_badopefexavo.pdfIn PDF document text
    • https://zubukuxazepezox.weebly.com/uploads/1/3/4/6/134600429/kokidakibaw.pdfIn PDF document text
    • https://mezovojexojija.weebly.com/uploads/1/3/0/8/130874002/wovejalusilu.pdfIn PDF document text
    • https://bisodipodur.weebly.com/uploads/1/3/4/5/134592442/1911525.pdfIn PDF document text
    • https://navubuxodogonid.weebly.com/uploads/1/3/5/3/135327143/gudinaj.pdfIn PDF document text
    • https://jodobape.weebly.com/uploads/1/3/4/3/134317169/fimobedepunige_zosedomotafepo.pdfIn PDF document text
    • https://wifaborasumekig.weebly.com/uploads/1/3/2/6/132695644/supomonapasokib.pdfIn PDF document text
    • https://motonikepo.weebly.com/uploads/1/3/0/7/130739202/8231061.pdfIn PDF document text
    • https://lewebivaduxug.weebly.com/uploads/1/3/5/3/135392118/vojurekofek-welevan.pdfIn PDF document text
    • https://tinutenuku.weebly.com/uploads/1/3/4/6/134664278/3568765.pdfIn PDF document text
    • https://jefiwosu.weebly.com/uploads/1/3/1/3/131379536/79cf77548215.pdfIn PDF document text
    • https://xigefazevape.weebly.com/uploads/1/3/4/6/134632801/lukefa.pdfIn PDF document text
    • https://guravigipide.weebly.com/uploads/1/3/2/8/132815190/midosuled-fegadogi-visofukaz-fifarofex.pdfIn PDF document text
    • https://luxowodadobib.weebly.com/uploads/1/3/5/3/135325591/2293386.pdfIn PDF document text
    • https://kuxifegofemiza.weebly.com/uploads/1/3/4/8/134865321/6197.pdfIn PDF document text
    • https://dufofisejufosu.weebly.com/uploads/1/3/4/8/134875198/bowupo.pdfIn PDF document text
    • https://mezepobavufu.weebly.com/uploads/1/3/4/7/134717124/9325368.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_off0000c628.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC628 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000dcc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC7 17508 bytes
SHA-256: 693f55f0a938c8078c08c57a6747637ab257dcd9a6ccb31cb370a86f44aca902
font_02_sfnt_off00010b15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B15 10480 bytes
SHA-256: a3c683883397dfa3656b005f6a2afce614db80d074537ad3896f1e7e2a330187

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