Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f8173e93588e7e…

MALICIOUS

PDF

76.0 KB Created: 2022-04-27 06:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 4984eae0062c3597a5bb80e6a04f8f4b SHA-1: 4444e57bb2ea327d09d7c6248da673e4c6a4ac81 SHA-256: a4f8173e93588e7e1bf123432947f1baeee0abaa0b34bd8d1f324802432055f1
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ragaz.co.za/YmrXLWy8?keyword=cost%20to%20service%20a%20treadmill PDF link annotation
    • https://luligokim.weebly.com/uploads/1/3/4/7/134715748/dopujariweru-vikarosobedupaw-mosivojado-mavofabitodim.pdfIn PDF document text
    • https://wronba.pl/uploads/wysiwyg/file/levasaxasevunekageraza.pdfIn PDF document text
    • https://tivumujodul.weebly.com/uploads/1/3/4/6/134608740/jovis_fexujarik.pdfIn PDF document text
    • http://belspelen.nl/admin/kcfinder/upload/files/64005166131.pdfIn PDF document text
    • http://wellcomm.co.id/assets/kcfinder/upload/files/bubisu.pdfIn PDF document text
    • http://nishikizushi.com/js/kcfinder/upload/files/kepatuwomitasozokowesut.pdfIn PDF document text
    • http://creaorganization.com/depo/sayfaresim/file/zexodiwenapefokefig.pdfIn PDF document text
    • https://raxopukefafifi.weebly.com/uploads/1/3/2/6/132695755/robesomofabapi.pdfIn PDF document text
    • https://wumupozokowep.weebly.com/uploads/1/3/5/3/135346219/fixir-lolaxotejitel.pdfIn PDF document text
    • https://bwhe.in/ckfinder/userfiles/files/lemugoxatudavaruwatabon.pdfIn PDF document text
    • https://rudevejujij.weebly.com/uploads/1/4/1/3/141372156/1076819.pdfIn PDF document text
    • https://lafimidoxugimu.weebly.com/uploads/1/3/4/5/134505664/buworuput-wutowegewuvivom.pdfIn PDF document text
    • http://timnhanhonline.net/upload/files/1980993538.pdfIn PDF document text
    • https://zimazegikej.weebly.com/uploads/1/3/4/7/134732290/kosurovipuliwal_kedaleziwefo_jejejamoviwoz_neferinuxew.pdfIn PDF document text
    • https://tdh-europe.org/files/files/kizisafosiral.pdfIn PDF document text
    • https://xikumafugab.weebly.com/uploads/1/3/4/8/134878264/nepoje-rasokavosopa.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620148c49bf46---21656261010.pdfIn PDF document text
    • https://jowovodepavilim.weebly.com/uploads/1/3/4/6/134651336/zuratonazisifo-gebupugemin-vasafapamip-tukipot.pdfIn PDF document text
    • https://budamasut.weebly.com/uploads/1/3/4/9/134903336/7176083.pdfIn PDF document text
    • http://azseal.net/uploads/userfiles/file/53863844143.pdfIn PDF document text
    • https://gafokogem.weebly.com/uploads/1/3/0/8/130874161/1846946.pdfIn PDF document text
    • https://lukeboxasuxij.weebly.com/uploads/1/4/1/5/141582118/nikatorobaga-zadopolevosoli-totobozolanus-nuwabufes.pdfIn PDF document text
    • http://ambvet-trefontane.eu/userfiles/files/gituputudepisupimud.pdfIn PDF document text
    • https://depatimuxuzox.weebly.com/uploads/1/3/4/4/134404048/3202707.pdfIn PDF document text
    • https://gulikefesagigal.weebly.com/uploads/1/3/5/3/135303577/lasomavo_taxikunob.pdfIn PDF document text
    • http://vocal.bpv.su/content/files/files/93733485647.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_off0000c563.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c563.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC563 16776 bytes
SHA-256: 239c8bca03fc9103f0315719a5c1564adf6afa9fe3c7d06b844affcf4ba3538a
font_01_sfnt_off0000f10f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10926 10524 bytes
SHA-256: cac8c33c6fe03c14a35e7f943d5dc640e491cdf97814c7664dff89ab4778c92d