Malicious PDF — malware analysis report

Static analysis result for SHA-256 726a834427bc1a49…

MALICIOUS

PDF

77.3 KB Created: 2022-04-24 04:09:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-12
MD5: acc66ce174fc5facb96c23bc91da3fd3 SHA-1: ed963446658e86661776e27eb694cf232b16bbf4 SHA-256: 726a834427bc1a4932c48274de9c8a1f63f7d6f6df347b42eced4cbae6273a18
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 http://opusincertum.it/userfiles/files/26335045326.pdf In PDF document text
    • https://vipuwajaziw.weebly.com/uploads/1/3/5/3/135398090/398deabe03b0.pdfIn PDF document text
    • https://www.tyrtaios.gr/ckfinder/userfiles/files/28115060200.pdfIn PDF document text
    • https://juxokiwi.weebly.com/uploads/1/3/4/5/134594748/josilibuzid_fodejategapagek.pdfIn PDF document text
    • https://gurovepulebeguj.weebly.com/uploads/1/3/1/1/131163897/d57167ce2be.pdfIn PDF document text
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16255e663db87c---85073035567.pdfIn PDF document text
    • http://holyfatwa.iq/admin/ckeditor/kcfinder/upload/files/fagomaxuzizozago.pdfIn PDF document text
    • http://sial.pl/galeria/file/97934974165.pdfIn PDF document text
    • https://jbdclothiers.net/emailer/userfiles/file/misezogoveseker.pdfIn PDF document text
    • https://nergizleryapi.com/image/files/90423802026.pdfIn PDF document text
    • http://ambulanceservice.pl/userfiles/file/99052195515.pdfIn PDF document text
    • http://webspace.mysdam.net/images/newsletter/files/95285057393.pdfIn PDF document text
    • http://kidilangues.fr/js/kcfinder/upload/files/dakejeniduta.pdfIn PDF document text
    • https://jugafuxuxeg.weebly.com/uploads/1/3/2/7/132740719/devonajugofib.pdfIn PDF document text
    • https://ranuregobaxamig.weebly.com/uploads/1/3/4/8/134889764/zuxetifilawonikozaj.pdfIn PDF document text
    • https://fotizewuzawefuv.weebly.com/uploads/1/3/4/6/134668380/2325880.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/162172e2948f8c---1702286070.pdfIn PDF document text
    • https://chilegastronomia.com/uploads/userfiles/files/xovodowefu.pdfIn PDF document text
    • https://www.starvisaservices.co.uk/application/elements/plugins/kcfinder/upload/files/sekajinaxe.pdfIn PDF document text
    • https://letolonenuxe.weebly.com/uploads/1/3/4/0/134095956/peronumomikavot.pdfIn PDF document text
    • https://sunuf.co.za/YmrXLWy8?keyword=how%20to%20reset%20braun%20thermoscan%204520PDF 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_off0000c395.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c395.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC395 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA7 18764 bytes
SHA-256: ddf7f267323b38cf0378b086a2622bb8b2b8a7afe1f1d647bd2f422acc0d5dde
font_02_sfnt_off00010bb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BB9 11128 bytes
SHA-256: 5ac0a608def4ba699fc2a7846f282d03a83545d8abc4f3d879422233a9070fc3