Malicious PDF — malware analysis report

Static analysis result for SHA-256 78237920bd393155…

MALICIOUS

PDF

76.2 KB Created: 2022-04-01 16:19:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 811da262d36ca0ed1cddaa7cc8fdc277 SHA-1: 3702cef84f809f933dfc8e895c57009e3c5e12b5 SHA-256: 78237920bd393155965cd8008ad042e3df79b1feaec3bc002f2f19d1599d9c07
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://yoyep.co.za/YmrXLWy8?keyword=asus%20dsl-ac68u%20specifications PDF link annotation
    • http://senkardeslerkereste.com/kcfinder/upload/files/sekajezafidapisenupabera.pdfIn PDF document text
    • http://claudiamelchior.it/images/file/25164742814.pdfIn PDF document text
    • http://sinbad.sy/admin/kcfinder/upload/files/65152004392.pdfIn PDF document text
    • https://plasticosgyc.co/kcfinder/upload/files/rimuxovaw.pdfIn PDF document text
    • http://portamarioarchitetto.eu/userfiles/files/dosovujev.pdfIn PDF document text
    • https://guzezetuxavipub.weebly.com/uploads/1/3/4/7/134765233/jemope.pdfIn PDF document text
    • http://www.colfacor.org.ar/administrador_web/kcfinder/upload/files/jifugimulofavefalireki.pdfIn PDF document text
    • https://ferosikapomizud.weebly.com/uploads/1/3/4/5/134526037/vopupagi-xopuxezadupemor-vijoxagorewu.pdfIn PDF document text
    • https://fenikazegalo.weebly.com/uploads/1/3/1/3/131379965/wakopeperoxugilo.pdfIn PDF document text
    • https://wumasokur.weebly.com/uploads/1/3/1/3/131384536/zuworewunekafa.pdfIn PDF document text
    • http://chiesamadremarsala.eu/userfiles/files/46216639328.pdfIn PDF document text
    • https://rizulibix.weebly.com/uploads/1/3/4/3/134358491/jamez.pdfIn PDF document text
    • https://pidofuvu.weebly.com/uploads/1/3/0/7/130739764/ebe5ccbca4.pdfIn PDF document text
    • https://kajagopop.weebly.com/uploads/1/3/4/7/134729443/vizanitetaw.pdfIn PDF document text
    • http://www.fichetalmeria.com/admin/kcfinder/upload/files/mopiwataxulet.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC216 11004 bytes
SHA-256: a1d8371f6c99d9688be645c125e82ede6f256cf7ade28d10f09437b19d606259
font_01_sfnt_off0000dbd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD4 17924 bytes
SHA-256: 55bd53713e03519113c6bed21a91811e5a8227f4b3f750088b15d80b8e2f69d5
font_02_sfnt_off00010a0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1