Malicious PDF — malware analysis report

Static analysis result for SHA-256 941101641465fe00…

MALICIOUS

PDF

163.0 KB Created: 2022-04-01 13:49:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: d10c94cecad2cb34281a775e4a038aa8 SHA-1: 3f7fe520781b0e598e2bd0201e5e1220bf7964b8 SHA-256: 941101641465fe0048c291fb80d8518619ddbe3565cdb00306ad48725905df8b
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious content. The presence of numerous external URIs, many hosted on disposable domains, suggests a link farm designed to redirect users to malicious sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically points to this behavior, likely intended for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

Heuristics 5

  • 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 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://loheb.co.za/YmrXLWy8?keyword=review%20mares%20puck%20pro%20plus PDF link annotation
    • https://sogonaretal.weebly.com/uploads/1/4/1/2/141287664/7760860.pdfIn PDF document text
    • https://ramorebuba.weebly.com/uploads/1/3/4/8/134898890/52c5f388d1.pdfIn PDF document text
    • https://wopinifem.weebly.com/uploads/1/3/4/8/134884590/fovorebigo_xagajerim.pdfIn PDF document text
    • https://motovatexasej.weebly.com/uploads/1/3/4/9/134900011/gokag-dadifuk-rokiwowo-nevuzexajezek.pdfIn PDF document text
    • https://bivapere.weebly.com/uploads/1/3/4/6/134689139/xegiloneke_bivopewukelezik.pdfIn PDF document text
    • https://xijitivagafe.weebly.com/uploads/1/3/4/7/134709267/jesabakariko_pufalibix_zarulelupalipex.pdfIn PDF document text
    • https://wemuxafav.weebly.com/uploads/1/3/4/8/134860001/pilapevabeputim-jozifivine-demozilotidased-nugafezi.pdfIn PDF document text
    • https://dokupikojezox.weebly.com/uploads/1/3/4/7/134740590/8937524.pdfIn PDF document text
    • http://leeclinic.kr/userData/board/file/52494946227.pdfIn PDF document text
    • https://zitituzite.weebly.com/uploads/1/4/1/2/141253789/dejogaponekoxa_nugek.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623a92acab008---32816521745.pdfIn PDF document text
    • https://sanavebopum.weebly.com/uploads/1/4/1/3/141327771/6c089f7a0b5bc9.pdfIn PDF document text
    • https://scavilecis.it/userfiles/file/69053619375.pdfIn PDF document text
    • https://wuripofowiwafu.weebly.com/uploads/1/3/4/3/134332549/3652542.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/162437feaec17d---jefukaxexoj.pdfIn PDF document text
    • http://hyswimpool.com/userfiles/lagigo.pdfIn PDF document text
    • https://zipakodexosif.weebly.com/uploads/1/3/5/3/135344546/jezijija-pumusojatelon.pdfIn PDF document text
    • https://oriolefashion.com/ckfinder/userfiles/files/94488416168.pdfIn PDF document text
    • https://dufowazana.weebly.com/uploads/1/3/4/5/134529111/jagevemutu-judazikuvolu.pdfIn PDF document text
    • https://donokodupotev.weebly.com/uploads/1/3/4/3/134317189/visiboji.pdfIn PDF document text
    • https://lowarimubabop.weebly.com/uploads/1/3/4/7/134712264/35d674448.pdfIn PDF document text
    • https://jaguzazezagiles.weebly.com/uploads/1/4/1/2/141231939/5311423.pdfIn PDF document text
    • http://zawodydrwali.pl/app/webroot/userfiles/file/najaridudaguterag.pdfIn PDF document text
    • https://devogenigibef.weebly.com/uploads/1/3/4/5/134501446/9690842.pdfIn PDF document text
    • https://gurekageta.weebly.com/uploads/1/3/2/6/132695257/6765c92a8.pdfIn PDF document text
    • https://xuwudivalef.weebly.com/uploads/1/3/4/8/134889087/fepenugivivenuv.pdfIn PDF document text
    • https://kulegireketo.weebly.com/uploads/1/3/5/3/135325025/bcf10711.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_off00021b7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21B7E 18884 bytes
SHA-256: 34287d1ef54bb448de3e6b46bae3b430cea4a4c06fe9b470e3ef5cacb47a3638
font_01_sfnt_off00024cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24CB1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000264c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x264C8 10720 bytes
SHA-256: f1dad885e6b59a2f888094993b4818a049a36e3a87e962cf740f5760903735b0