Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d85400a671aff46…

MALICIOUS

PDF

72.2 KB Created: 2022-04-07 19:42:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 9b4dfc6a8eb253924c470ee5be65fab0 SHA-1: 3dd74a5edcc9b9edf61d46e730fce407e992d7e3 SHA-256: 5d85400a671aff469b177d3a9178e61d4e55fcfa71eb70fcfe8e902918913dad
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://wirut.co.za/YmrXLWy8?keyword=is%20gta%204%20offline PDF link annotation
    • https://lolinukopo.weebly.com/uploads/1/3/4/3/134351434/07d5669636947ae.pdfIn PDF document text
    • http://sgpeo.pl/users/file/rotawagozoxewemopafekuta.pdfIn PDF document text
    • http://at1apigroup3.com/contents/files/lomekelasawozikesepuro.pdfIn PDF document text
    • http://thsport.dk/ckfinder/userfiles/files/wilekotun.pdfIn PDF document text
    • https://kosilamegorigi.weebly.com/uploads/1/3/1/4/131409210/48b8aa4114a717.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1623603ca4283f---zafulebutovevibapinubu.pdfIn PDF document text
    • http://salamino.pl/userfiles/file/39687673946.pdfIn PDF document text
    • https://kopepadozuko.weebly.com/uploads/1/3/4/5/134505487/b8f87c996a2e1.pdfIn PDF document text
    • http://www.novosib-sport.ru/ckfinder/userfiles/files/82740929547.pdfIn PDF document text
    • https://gesemobi.weebly.com/uploads/1/3/0/7/130738939/pasufox_wapani_suxususavomuvi_rulonuga.pdfIn PDF document text
    • http://gmicropilotes.com/uploads/files/pipil.pdfIn PDF document text
    • http://decaldankinh.net/upload/files/bowumuweg.pdfIn PDF document text
    • https://riximuboderex.weebly.com/uploads/1/3/4/7/134744564/sojatu.pdfIn PDF document text
    • http://redagowanieprac.net/Upload/file/73164205159.pdfIn PDF document text
    • http://cke.hk/userfiles/42064235997.pdfIn PDF document text
    • http://lightofislamonair.org/uploads/files/tavofuvofajupenok.pdfIn PDF document text
    • https://sobemifukoku.weebly.com/uploads/1/3/4/8/134887972/9171867.pdfIn PDF document text
    • http://legrand-valena.su/kcfinder/upload/files/kopalipuduxuza.pdfIn PDF document text
    • https://sakkestadbil.no/userfiles/file/8862609664.pdfIn PDF document text
    • https://www.nirsoft.net/utils/run_as_date.htmlIn 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_off0000b6f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6F5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cf07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF07 17240 bytes
SHA-256: 63c7898c96cf588cda088a8def805f5e3b66970805520931340d7338055552f5
font_02_sfnt_off0000fc4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4C 10320 bytes
SHA-256: 92dfbb9568a5027bdc567a1575a2a6639fb898d978ec1763eb19a86c50b7c0c6