Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b641122bd7f9076…

MALICIOUS

PDF

67.8 KB Created: 2021-09-24 14:56:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: a4f586abbe64a3612757789c38cb5924 SHA-1: 70937ccabea6f723c7ae8aa82c061b8b0564083b SHA-256: 2b641122bd7f907696ce69339c9fcb5c5e532b3d1abc8387a81a1b4d725ef560
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://mabifitness.it/userfiles/files/jitefunefusu.pdf In PDF document text
    • http://harchovyk.com/userfiles/file/73472229671.pdfIn PDF document text
    • http://vongtaygiay.net/media/ftp/file/zuvinoligepalejete.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614486396f152---3127200726.pdfIn PDF document text
    • http://rexant.by/upload/editor/files/wulesibakex.pdfIn PDF document text
    • http://kleinschadenexperte.de/userfiles/file/93715967149.pdfIn PDF document text
    • http://datong-travel.tw/upload/ckeditor/files/20210923025229.pdfIn PDF document text
    • http://labonscafe.com/userfiles/69354618605.pdfIn PDF document text
    • https://davidfoleyinc.com/userfiles/file/zoxedovowa.pdfIn PDF document text
    • http://globalbando.com/DATA/upload/files/202109121805473458.pdfIn PDF document text
    • https://concurs-euclid.ro/upload/fck/semulawazu.pdfIn PDF document text
    • http://blueleaves.ru/userfiles/file/fitepitisuzonidunakelo.pdfIn PDF document text
    • http://studiotecnicofrisoli.com/userfiles/files/pidalisumajegogawakusof.pdfIn PDF document text
    • http://usmleworkout.com/files/file/pumifisipinutudojov.pdfIn PDF document text
    • http://palestraarkadia.it/userfiles/files/99779943448.pdfIn PDF document text
    • http://mobilesamara.com/img/files/file/fuwikunufiv.pdfIn PDF document text
    • https://nieruchomosciturystyczne.eu/files/file/26809720628.pdfIn PDF document text
    • http://biomax.shop/filespath/files/20210901212048.pdfIn PDF document text
    • http://wittymall.com/multimedia/userfiles/file/3248207236.pdfIn PDF document text
    • http://studiopignotti.it/userfiles/files/panemefabamorubigobo.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614cfa0a83555---92491804873.pdfIn PDF document text
    • http://sutipatika.hu/userfiles/files/vapesaliwexabiwujavawiji.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=geronimo+stilton+story+books+pdfPDF 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 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_off0000ac21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC21 14536 bytes
SHA-256: f9bf7f322e6d9c253d4682ac9f9c5cb800259c8239103165d13bbf59de6ed1c3
font_01_sfnt_off0000d0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e8d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D4 10884 bytes
SHA-256: 319b755c63299f0eb03c8e59abb6ce746b6d0d70bfecd971d7299b2fa5a18006

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