Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1587fb8d9572c9…

MALICIOUS

PDF

69.5 KB Created: 2022-05-04 14:41:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: fd0f7144908a879fec04dbedcc3aa5cd SHA-1: dad73bac727da6b85c18c1b898b2d5634bba0ea3 SHA-256: 5a1587fb8d9572c98e958427b88e9c46b0365d408d66793f7062f202eeae6a18
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=seis%20sigma%20metodologia%20y%20tecnicas%20escalante%20pdf%20gratis%20de%20la%20romana%20en%20la%20republica%20dominicana PDF link annotation
    • https://mosidaxe.weebly.com/uploads/1/3/4/2/134265431/lelufan.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/cf2b14b532077a2250bb34150ced748b/83443444182.pdfIn PDF document text
    • https://fuvapele.weebly.com/uploads/1/3/0/7/130738919/f0afbe1e12d7.pdfIn PDF document text
    • http://mskgroup-spb.ru/upload/file/dejifevarisubesekedu.pdfIn PDF document text
    • http://ankurgroups.com/userfiles/file/luketizokuxidelusu.pdfIn PDF document text
    • https://mefanajumajadip.weebly.com/uploads/1/3/1/6/131637152/nifixipuposimerum.pdfIn PDF document text
    • https://serviceservice.eu/userfiles/file/gujidadosibofazawonejoz.pdfIn PDF document text
    • https://bitokulizawefe.weebly.com/uploads/1/3/4/6/134684274/xegakuninix.pdfIn PDF document text
    • https://piruvene.weebly.com/uploads/1/4/1/3/141326741/wixuguvaluzu.pdfIn PDF document text
    • https://gavabukif.weebly.com/uploads/1/3/4/6/134614168/pilaxuruvimatug_sopiwiguvukugiv_kawawi.pdfIn PDF document text
    • https://bujozimadepaxed.weebly.com/uploads/1/3/4/6/134615651/3987181.pdfIn PDF document text
    • https://jugoneworo.weebly.com/uploads/1/3/4/3/134307205/3792813.pdfIn PDF document text
    • https://sabatti.hu/admin/kcfinder/upload/files/nexalumopewevirubibato.pdfIn PDF document text
    • http://medicaldistri.com/ckfinder_files/files/puledezazomafuzuzanimirib.pdfIn PDF document text
    • https://jejomedilad.weebly.com/uploads/1/3/5/3/135316302/2078312.pdfIn PDF document text
    • https://www.profiexpo.ru/js/kcfinder/upload/files/63072259754.pdfIn PDF document text
    • https://rujazako.weebly.com/uploads/1/3/4/4/134471695/zozeje.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

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_off0000a80d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA80D 11392 bytes
SHA-256: 550a1ce8234b628850f7d151c4b10fc9f26790431d4f786da5afe4ea512c78fd
font_01_sfnt_off0000c280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC280 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000da92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA92 16756 bytes
SHA-256: 28374e2a1545bd7dfbeb06b15b4864a3e8c2b70f7bfbeb4fc64561cf888b9738

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