Malicious PDF — malware analysis report

Static analysis result for SHA-256 78266b7f1730e3e7…

MALICIOUS

PDF

98.4 KB Created: 2022-04-19 14:31:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: b241b78e9f44cdd5ccd9ba65e706a353 SHA-1: 8ae9f1c0f594c62e2c9f5f3121d4b2be25f40082 SHA-256: 78266b7f1730e3e73ba342a9c97777b80a175b139925619abc279adafd60dcbf
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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
  • 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.
  • 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 https://fecuq.co.za/YmrXLWy8?keyword=asus%20rt-n66u%20service%20manual PDF link annotation
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f333f97865---wositatofotawi.pdfIn PDF document text
    • http://thumuavechai.com/vietkiendo/upload/file/kipuk.pdfIn PDF document text
    • https://www.iccis20.scrs.in/kcfinder/upload/files/zovurosokifuzim.pdfIn PDF document text
    • https://kampusogrenciyurdu.com/file/rawezun.pdfIn PDF document text
    • https://gokejubekilebu.weebly.com/uploads/1/3/4/3/134376129/sawepinubotuludesew.pdfIn PDF document text
    • https://jowozutosi.weebly.com/uploads/1/4/1/2/141231593/xefibusan.pdfIn PDF document text
    • http://runbo.net/upfiles/files/16474252834971.pdfIn PDF document text
    • https://molapoji.weebly.com/uploads/1/3/4/0/134096941/2b120d5cb2084.pdfIn PDF document text
    • http://eortak.com/img/fck_temp/file/99250932809.pdfIn PDF document text
    • https://pupiwikupexi.weebly.com/uploads/1/3/4/3/134348736/dezudino.pdfIn PDF document text
    • http://clingac.es/d/files/mizinef.pdfIn PDF document text
    • http://ailin.kz/js/kcfinder/upload/files/gariminijulowozu.pdfIn PDF document text
    • https://pojumawi.weebly.com/uploads/1/3/4/5/134589932/5c9983cb3a.pdfIn PDF document text
    • http://vngo-cc.vn/cooker/public/files/zesogipukemedegoluvadok.pdfIn PDF document text
    • http://serviskytar.cz/kcfinder/upload/files/21666725284.pdfIn PDF document text
    • https://nera.net/css/other/ckeditor/kcfinder/upload/files/nexateramagezubudubamapot.pdfIn PDF document text
    • https://nafutitis.weebly.com/uploads/1/3/6/0/136053715/rokademikijuvuvumil.pdfIn PDF document text
    • https://gemiporelowagi.weebly.com/uploads/1/3/0/7/130775846/1537572.pdfIn PDF document text
    • https://vectronic.tech/admin/ckeditor/kcfinder/upload/files/60255225992.pdfIn PDF document text
    • https://denowulak.weebly.com/uploads/1/3/3/9/133997299/9593707.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f6b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6B3 17976 bytes
SHA-256: 1cbbb6b5c2003a3638ad5d3c6fd8cc5214913e5a2d79993aefe49173d46abe08
font_02_sfnt_off0001265c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1265C 10620 bytes
SHA-256: 01b2f57c36ef9bcfe146ca371f28e5ee377f23834ea3a46e50a8b0a4ed02520f
font_03_sfnt_off00013eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EB7 21804 bytes
SHA-256: 67e5a5294256e19e45ec62a45f9b06d753bacb63abc872c287fb0cf9bba2ddc4