Malicious PDF — malware analysis report

Static analysis result for SHA-256 941d97fddf999783…

MALICIOUS

PDF

72.3 KB Created: 2021-12-14 08:43:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 6279ed3aef79187faa53c42d27ed2a10 SHA-1: e406c4cbf3b1e51a95662a7b4255214111c85947 SHA-256: 941d97fddf9997835a7275796d1e19036aeffe76b48de9b81601e1592090eed1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://suncitygroup.ir/basefile/suncitygroupir/files/gikine.pdf In PDF document text
    • http://fairway.cc/images/blog/file/kanipudipumobusi.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/161340e3693888---xunudixaxakafikasanemul.pdfIn PDF document text
    • https://duvanco.be/docs/files/37667323359.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1617f60a07619a---wadatumilozerib.pdfIn PDF document text
    • http://chizclean.ru/files/fck/file/godifilatevetoxuwokow.pdfIn PDF document text
    • http://skpizzasubs.com/uploads/files/84097869220.pdfIn PDF document text
    • https://santchavarabed.in/ckfinder/userfiles/files/32460744108.pdfIn PDF document text
    • http://flapboxes.com/userfiles/files/68536315336.pdfIn PDF document text
    • https://unicon-msk.ru/data/files/80951904972.pdfIn PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/vl3qvnn1mgapvvenlcmhj3ipm1/24379759050.pdfIn PDF document text
    • http://thaihotelsale.com/FileData/ckfinder/files/20210911_D5D5070D7063BE1E.pdfIn PDF document text
    • http://e-motyle.natura2000.pl/imgturysta/files/45614470124.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132a003e1dfa---vovawijamibibirevovo.pdfIn PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/a67bc0528412d44a3c55d2d8e59bae14/14919516759.pdfIn PDF document text
    • http://pk.mo/userfiles/file/20065908605.pdfIn PDF document text
    • https://doanhnghiepvietnam.org/img_duhoc/files/37309661517.pdfIn PDF document text
    • http://mtcnx.com/upload/fckimagesfile/12317101369.pdfIn PDF document text
    • https://trompis-tondschungel.de/userfiles/file/keweve.pdfIn PDF document text
    • http://thewellmanteam.com/userfiles/files/85616086757.pdfIn PDF document text
    • http://esoftland.com/userfiles/file/43031735104.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/7xhmvLXWVJc/uplcv?utm_term=basic+computer+interview+questions+and+answers+pdf+free+downloadPDF link annotation
    • 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_off0000b4d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4D4 11232 bytes
SHA-256: 24182073010b4acba21698412a322798890eccc607fa393cd25685b2a4ad99b1
font_01_sfnt_off0000cf05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF05 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000e5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A4 17496 bytes
SHA-256: d3af6aa663639453ab2b836a13957fc40a25c66b8468bba93651f8033378c833

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