Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6a3bb4504ad79c…

MALICIOUS

PDF

71.9 KB Created: 2022-04-05 04:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 0695342a3a0967e66291c1fb972ad01b SHA-1: 413fad5b14b0d6cca74c2b1efd933cdb84abd5c1 SHA-256: 8f6a3bb4504ad79c838a4363e9dad09b8a7de0e4e5eda00334c4d2f01421861f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://dm288.rs/slicice/file/3400831574.pdf In PDF document text
    • http://sladkiy-ostrov.ru/userfiles/files/59660789228.pdfIn PDF document text
    • https://zajefogana.weebly.com/uploads/1/3/1/4/131407312/vewemewumogo.pdfIn PDF document text
    • https://maquinandoysubastando.com/dleyes/admin/fotos/file/gisokotokupepenavapifej.pdfIn PDF document text
    • https://vidulegu.weebly.com/uploads/1/3/4/8/134897898/beburodo.pdfIn PDF document text
    • https://vizefibamoraxob.weebly.com/uploads/1/3/4/6/134613498/fizodu_kodujikefibux.pdfIn PDF document text
    • https://hatarozatok.martonvasar.hu/ckeditor/kcfinder/upload/files/5986826456.pdfIn PDF document text
    • http://atdawnwelift.com/userfiles/file/bonatemexewuxaxoredu.pdfIn PDF document text
    • https://mahanakhon.pacedev.com/ckupload/files/tetodita.pdfIn PDF document text
    • https://ikima.fr/uploads/file/zemijaxaloguxufexewezamok.pdfIn PDF document text
    • http://justsayhi365.com/uploads/file/12280476118.pdfIn PDF document text
    • http://melody-house.ru/kcfinder/upload/files/18336125192.pdfIn PDF document text
    • https://welabelodaset.weebly.com/uploads/1/3/5/3/135399274/9878045.pdfIn PDF document text
    • https://pasarant0g3l-turbo-h1t.com/contents/files/33263354314.pdfIn PDF document text
    • http://texinpack.com/uploadfile/file///2022031909060559.pdfIn PDF document text
    • http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/bivagubuf.pdfIn PDF document text
    • http://ewtch.com/upload/files/22086473142.pdfIn PDF document text
    • http://nuitsdartistes.eu/images/file/59277360450.pdfIn PDF document text
    • http://kp-technik.cz/ckfinder/userfiles/files/28893054051.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=quadra%20fire%201200%20not%20feeding%20pelletsPDF 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_off0000b3e3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b3e3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b3e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3E3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cbf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF5 16744 bytes
SHA-256: a36d368f5c3ad24d9a4c0dfe76f9c1ae06222f1c719e557ae08aa75979ebbcef
font_02_sfnt_off0000f7bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BB 11128 bytes
SHA-256: 2e8f52d4c1971ce352edd7fb8df5546d681f4b06c0a6c848bd594cacfed37fe8