Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f6e6248e4041fe…

MALICIOUS

PDF

76.5 KB Created: 2022-03-26 10:10:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: 87c93a1a83014b1ab4f8b156481acb19 SHA-1: 52f3cfa0a2723ebbcdfd2a02d444f8f1f6a3ad04 SHA-256: a4f6e6248e4041fe948a7e2fe411d55b89b4349fd71db383500c87b97f46fbca
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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=no%20sound%20from%20polk%20subwoofer PDF link annotation
    • https://jujizifij.weebly.com/uploads/1/3/4/3/134309807/2026848.pdfIn PDF document text
    • https://bomejafir.weebly.com/uploads/1/3/4/7/134725936/7477685.pdfIn PDF document text
    • https://lulegosepo.weebly.com/uploads/1/3/0/9/130969478/vetage_papukobakene_palurewopaxux.pdfIn PDF document text
    • https://kelabuwak.weebly.com/uploads/1/3/4/0/134098394/kenaw-luvitu-taluxudab-zunalufuxadexa.pdfIn PDF document text
    • https://kagepumesafoke.weebly.com/uploads/1/3/4/8/134846889/rofin.pdfIn PDF document text
    • https://gedorizifoxe.weebly.com/uploads/1/3/1/6/131607240/wenulunapawuse.pdfIn PDF document text
    • https://xugowapowafav.weebly.com/uploads/1/3/0/7/130775127/244a3752337.pdfIn PDF document text
    • https://vekosafadowob.weebly.com/uploads/1/3/4/8/134868088/dolufinipajibom.pdfIn PDF document text
    • https://tirigimufaregi.weebly.com/uploads/1/3/4/4/134464067/mogokomidakav-befunekuzu-penubaberik.pdfIn PDF document text
    • https://bimipesetasezi.weebly.com/uploads/1/3/4/0/134017520/b43c42f1da5.pdfIn PDF document text
    • https://pefodiral.weebly.com/uploads/1/3/4/4/134476409/a3b36f60e2272.pdfIn PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/54e3cceae5.pdfIn PDF document text
    • https://febewizonobuwom.weebly.com/uploads/1/3/4/3/134311996/11bfa.pdfIn PDF document text
    • https://mevagosulen.weebly.com/uploads/1/3/5/3/135391340/wezifakesobi_loruzofiv.pdfIn PDF document text
    • https://lulegosepo.weebly.com/uploads/1/3/0/9/130969478/fufegiroxopiji_salorape_latojudagesaput.pdfIn PDF document text
    • https://kazefapakoj.weebly.com/uploads/1/3/4/6/134644741/vugepagomawizuva.pdfIn PDF document text
    • https://jigurojo.weebly.com/uploads/1/3/5/3/135321607/7868481.pdfIn PDF document text
    • https://rarozevalir.weebly.com/uploads/1/3/1/4/131437937/e3f6addddfb.pdfIn PDF document text
    • https://paxituzupinemof.weebly.com/uploads/1/3/5/3/135303349/6638428.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 extracted file (font_00_sfnt_off0000c7fc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c7fc.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FC 17432 bytes
SHA-256: 393961a0c276f19c506d4c5b32bf675cb34bcc12e788fd76450df4629dbcfd22
font_01_sfnt_off0000f5c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C9 10700 bytes
SHA-256: aa8b70b904fd3d40493ee0b2036b4c99cd5daebbf6022ba23e7f790fe131b13d
font_02_sfnt_off00010e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E25 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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