Malicious PDF — malware analysis report

Static analysis result for SHA-256 7823a5209affac67…

MALICIOUS

PDF

81.2 KB Created: 2022-04-11 00:50:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 7f0df737a86199f698f024d12aa5ad9f SHA-1: f884f4998f4be9a9aa12e99c4f24edeea3e5661d SHA-256: 7823a5209affac6776be665244a307c6a9f2751ad698bdebec8b392fe6d7aee5
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=what%20is%203%20branches%20of%20government PDF link annotation
    • https://jenuduwif.weebly.com/uploads/1/4/1/3/141305424/3860163.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fb363487404---sakarifomudubuku.pdfIn PDF document text
    • http://schoonhovensvrouwenkoor.nl/ckfinder/userfiles/files/95958901045.pdfIn PDF document text
    • https://javabudonoban.weebly.com/uploads/1/3/2/6/132683403/felewenelowab.pdfIn PDF document text
    • https://linasiwafeki.weebly.com/uploads/1/3/1/3/131380288/3d264.pdfIn PDF document text
    • https://ketadamofexawun.weebly.com/uploads/1/3/5/3/135349072/giloje-sejoderulaz-somiguludu-ratuvogavada.pdfIn PDF document text
    • http://www.anpamedical.com/kcfinder/upload/files/nosapefonuwo.pdfIn PDF document text
    • https://wiwufupa.weebly.com/uploads/1/3/2/8/132814928/887486018911.pdfIn PDF document text
    • https://mavegisokelu.weebly.com/uploads/1/3/4/1/134131346/relumofejiwuse.pdfIn PDF document text
    • https://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/tezasijamesotodolipuwawod.pdfIn PDF document text
    • https://dvcard.dsverano.com/UserFiles/File/kekojak.pdfIn PDF document text
    • https://newogevalofa.weebly.com/uploads/1/3/4/8/134898908/4c897.pdfIn PDF document text
    • https://falogumirej.weebly.com/uploads/1/3/4/3/134368081/1c7683a52.pdfIn PDF document text
    • https://rofofomigedug.weebly.com/uploads/1/3/4/4/134486696/4688708.pdfIn PDF document text
    • https://pujuxapalijened.weebly.com/uploads/1/3/6/0/136009243/nifafobitujexipubak.pdfIn PDF document text
    • http://vikingpaint.com/user_file/file/vufepepufenenekad.pdfIn PDF document text
    • https://waseralubireg.weebly.com/uploads/1/3/4/6/134622629/goduzujuge_zokoko.pdfIn PDF document text
    • https://metroob-gyn.com/ckfinder/userfiles/files/12850628491.pdfIn PDF document text
    • https://xobopeta.weebly.com/uploads/1/3/0/7/130739243/472861e19654.pdfIn PDF document text
    • https://sekinejifupom.weebly.com/uploads/1/3/5/3/135350217/xomoruv.pdfIn PDF document text
    • https://jugukibe.weebly.com/uploads/1/3/0/7/130740256/085714131e091.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_off0000d715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD715 11108 bytes
SHA-256: cc52706ecf4808a01e893b49e6c150a77f14f2d6465abe5e29bd064bba9e5a53
font_01_sfnt_off0000f0ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0ED 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000108ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108FF 16728 bytes
SHA-256: 06b74fb64551e65691e5bcc2c195edbfb89903764238fb4a7ed0fda08c24234f

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