Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2bc77d555cda2b…

MALICIOUS

PDF

80.5 KB Created: 2022-04-25 18:04:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 9588b2e8b1de4f2faad6dff5de4e25e8 SHA-1: 8750aca64dee42ccc483f404d33bb41296478dce SHA-256: af2bc77d555cda2b35ab744beabeb3235fe014bc10d96a438e71d96a2b0800da
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://cafij.co.za/YmrXLWy8?keyword=6%20major%20us%20rivers PDF link annotation
    • https://larozosaja.weebly.com/uploads/1/3/7/4/137498930/wulisadekopuso_venoluvabase_nizatawatilolal.pdfIn PDF document text
    • https://kefapadasogimok.weebly.com/uploads/1/3/4/6/134601884/lepexinirojubon.pdfIn PDF document text
    • http://jindi2010.com/uploadfile/files/57677748786.pdfIn PDF document text
    • https://vemugalibi.weebly.com/uploads/1/3/4/4/134484787/kikebesamipaf_jiwepibud.pdfIn PDF document text
    • http://mdbim.pl/ubezpiecz/obrazy/file/44235472464.pdfIn PDF document text
    • http://nerezove-kuchyne.cz/UserFiles/File/28017036211.pdfIn PDF document text
    • https://aleksandarshoes.com/storage/files/21313363555.pdfIn PDF document text
    • https://panulozeti.weebly.com/uploads/1/3/5/3/135351273/subusejijifaz-rezed-lanuji.pdfIn PDF document text
    • https://fasanubuxa.weebly.com/uploads/1/3/4/7/134733786/3164356.pdfIn PDF document text
    • https://hkfew.org.hk/ckfinder/userfiles/files/reniketape.pdfIn PDF document text
    • https://ruragivelexodi.weebly.com/uploads/1/3/4/6/134663557/geguzibimesutabuzav.pdfIn PDF document text
    • http://get-insurance.in/ckfinder/userfiles/files/25293128658.pdfIn PDF document text
    • https://valetapos.weebly.com/uploads/1/3/4/2/134265584/zasoledow.pdfIn PDF document text
    • https://kenawogerawe.weebly.com/uploads/1/3/4/5/134593039/meboxegopev.pdfIn PDF document text
    • https://excellencetogether.com/img/files/file/59545593492.pdfIn PDF document text
    • https://novitas.ro/files/34824047888.pdfIn PDF document text
    • https://turakenedonatup.weebly.com/uploads/1/3/4/6/134610331/zikawetix.pdfIn PDF document text
    • https://pakunifa.weebly.com/uploads/1/3/5/3/135307874/4589593.pdfIn PDF document text
    • http://www.companyforte.com/imagenes/editor/file/wugapeboron.pdfIn PDF document text
    • http://eintracht-bayreuth.de/kcfinder/upload/files/mulutufafasukidudub.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_off0000d75c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75C 10388 bytes
SHA-256: 60e27b8d503bb464cf2c510fbfaa647d00d5edbfc3cb9cfebb08578f975f1160
font_01_sfnt_off0000eee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE5 17528 bytes
SHA-256: 0358c32d66bc2a28bfdb2818ab84dd29b9688ab80568b0e596594679634a70ce
font_02_sfnt_off00011c08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C08 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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