Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2d33ad5ae6953e…

MALICIOUS

PDF

69.2 KB Created: 2021-10-13 15:34:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 9c59d1d76a9037ff31ec33a04080be5c SHA-1: 8d7a775010a915c8040c91cfe8eca6134da3b919 SHA-256: af2d33ad5ae6953e25532ded0e1801a96dc684fdf7be2c9098ded96b1e92a4e3
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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
  • 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.
  • 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 http://squarcialupirelaxinchianti.com/writable/public/userfiles/file/busogalexuvaxiwexonifizet.pdf In PDF document text
    • http://tatvan.in/userfiles/file/tujulefamalolumuwogazebi.pdfIn PDF document text
    • http://jandebruijn.com/uploadimages/files/19969491643.pdfIn PDF document text
    • http://cokhilegia.com/upload/files/tevipugolisuroroke.pdfIn PDF document text
    • http://flyingwedge.com/uploads/assets/file/8621249816.pdfIn PDF document text
    • http://lonsdale.ee/tipikas/uploads/sisupildid/26043110224.pdfIn PDF document text
    • http://volvo-cars.jp/js/upload/files/woxolujakewenafusu.pdfIn PDF document text
    • http://parmalab.it/userfiles/files/42699828875.pdfIn PDF document text
    • http://hrampetraipavlavosstanovlenie.ru/content/images/user/file/bodavokowev.pdfIn PDF document text
    • http://shimamura-mail-order.com/userfiles/file/34186576438.pdfIn PDF document text
    • http://yuemeism.com/uploadfiles/files/wobijojuladufok.pdfIn PDF document text
    • https://fotoprint.lv/downloads/file/jusud.pdfIn PDF document text
    • https://aiaciran.org/cache/fck_files/file/jepokimuwojaje.pdfIn PDF document text
    • https://rjpexport.com/files/litulax.pdfIn PDF document text
    • http://africareview.in/userfiles/file/97881688880.pdfIn PDF document text
    • http://e-store-sys.com/userfiles/file/segituk.pdfIn PDF document text
    • http://bawaconstructions.com/editorData/file/82104116024.pdfIn PDF document text
    • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1615447d4582bb---1960151710.pdfIn PDF document text
    • http://timocomputer.cz/files/file/6710157714.pdfIn PDF document text
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/virumfpcojjd3s4igs2i70c4m7/22074653582.pdfIn PDF document text
    • http://gildiamasterov.ru/userfiles/file/kusezogogob.pdfIn PDF document text
    • https://uclerbaklava.com/resources/file/jelixadokopawesovi.pdfIn PDF document text
    • http://www.fuchingrading.com/upload/file/sawaraxuzolizekelajati.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/b00f0c0c08c7ff8b92bc1576b51e88a0/10273922432.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/BGAemAmcdTc/uplcv?utm_term=evolutions+xy+card+pricesPDF 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_off0000afb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB6 10872 bytes
SHA-256: 2060ffdc750b12f8a298a806b3c5e136cd38a0e3c0e6555719afcdb3558cd538
font_01_sfnt_off0000c910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC910 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE122 15244 bytes
SHA-256: d872659f12a798b2c410cf0e9e3b47605f511358cb90175a649d727e9c8348b0