Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f68c6e9f918000b…

MALICIOUS

PDF

70.5 KB Created: 2022-04-10 13:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 4221a28cdb0f0058a3cb8594a65eeffb SHA-1: d617b1b96c72a757370bca9cba57fb3b940b4d01 SHA-256: 8f68c6e9f918000bb27d9e56693e728f5e19bcb26116eb52c3ca90016f3ba5c8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://gogakasepasepun.weebly.com/uploads/1/3/4/3/134375341/susaf.pdf In PDF document text
    • https://laxaxaxiw.weebly.com/uploads/1/3/4/5/134528460/gufivu.pdfIn PDF document text
    • http://bfup.org/ckeditor/kcfinder/upload/files/refamenuxorowa.pdfIn PDF document text
    • https://nabaduvikarupad.weebly.com/uploads/1/3/4/0/134096068/vojefudimatade.pdfIn PDF document text
    • http://www.naturhalles.fr/fckeditor/userfiles/file/bujikuwuduxab.pdfIn PDF document text
    • http://restaurant-lyons.fr/userfiles/file/98770311131.pdfIn PDF document text
    • http://xn--krmer-dnnebacke-1kb72b.de/files/file/degibavutevirenus.pdfIn PDF document text
    • https://divigutokorafo.weebly.com/uploads/1/3/4/6/134683056/7491563.pdfIn PDF document text
    • https://tukareteran.weebly.com/uploads/1/3/5/3/135307171/sekirasevatuza-jenojufopol.pdfIn PDF document text
    • https://wuxijize.weebly.com/uploads/1/3/4/6/134685372/a7c3a2712.pdfIn PDF document text
    • http://www.bioderko.chodziez.pl/kcfinder/upload/files/japamumi.pdfIn PDF document text
    • http://www.etiquettes-adhesives-bobine.fr/kcfinder/upload/files/javofibage.pdfIn PDF document text
    • http://olguanaokulu.com/upload/file/53633104685.pdfIn PDF document text
    • https://fadufavibog.weebly.com/uploads/1/3/4/8/134889314/5746fea15.pdfIn PDF document text
    • http://topclinique.ma/kcfinder/upload/files/jiselo.pdfIn PDF document text
    • http://vladekoservis.ru/files/zewup.pdfIn PDF document text
    • https://tozikogok.weebly.com/uploads/1/3/5/3/135330875/4895213.pdfIn PDF document text
    • https://voxizexuzitit.weebly.com/uploads/1/4/1/2/141246555/veler-gidosodosa.pdfIn PDF document text
    • https://xososikanezav.weebly.com/uploads/1/3/4/8/134892973/18dbb5c69768bb.pdfIn PDF document text
    • https://cafeau1ait.xyz/js/ckfinder/userfiles/files/4400429342.pdfIn PDF document text
    • http://medcentervrn.ru/userfiles/files/kisuruxixomo.pdfIn PDF document text
    • https://kifisiwa.weebly.com/uploads/1/3/4/2/134266158/5d996f0f5.pdfIn PDF document text
    • https://lazav.co.za/YmrXLWy8?keyword=hal%20leonard%20guitar%20method%20complete%20edition%20pdfPDF 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 extracted file (font_00_sfnt_off0000ac20.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ac20.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ac20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC20 17440 bytes
SHA-256: fcc5b8365fdf184a34374c7836b60e89a1854b8b436cd6cbc6d19cf6d2f500ed
font_01_sfnt_off0000d9ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FF 10988 bytes
SHA-256: 4358414e9a4eaf80346c206b080f279394be7dff325fab7ae31c387e8f33d7e4
font_02_sfnt_off0000f304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF304 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1