Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8b0aa2ac1b4ac3…

MALICIOUS

PDF

76.8 KB Created: 2021-11-06 08:56:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: cab2e17061fe3d8145c1e7ab92f1abce SHA-1: b15040419a670030a52935d4fa5e307a2909334b SHA-256: 5d8b0aa2ac1b4ac324a3a09aad1c8f368bab120644de6d17c3ffb8811b81b2a6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://abicecream.ru/ckfinder/userfiles/files/tudemix.pdf In PDF document text
    • http://kaupa.cz/userfiles/file/14600798351.pdfIn PDF document text
    • http://freetourscadiz.com/ckfinder/userfiles/files/tavadudezuwedefefuve.pdfIn PDF document text
    • https://fleseriuassociates.ro/files/file/60414194591.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139be6da1a93---muwazibinolifugeka.pdfIn PDF document text
    • http://bibliotekaludwin.pl/img/upload/files/8779809004.pdfIn PDF document text
    • https://mosconi.net/userfiles/file/55624846296.pdfIn PDF document text
    • http://roycraft.ca/userfiles/file/pidesopufinovupo.pdfIn PDF document text
    • http://kozszemle.hu/uploads/files/9204259835.pdfIn PDF document text
    • http://www.poliklinika-hb.cz/userfiles/file/43613323974.pdfIn PDF document text
    • https://doucetplasticsurgery.com/ckfinder/userfiles/files/29057266026.pdfIn PDF document text
    • https://infoenergie-loire.org/userfiles/file/numav.pdfIn PDF document text
    • http://bawaconstructions.com/editorData/file/gamonewiwedasiwapurelol.pdfIn PDF document text
    • http://alburigiott.it/userfiles/files/taniwuxovuxedajuboradira.pdfIn PDF document text
    • http://reutlinger.pl/userfiles/file/66731207223.pdfIn PDF document text
    • http://gonzagafood.com/userfiles/files/61441999181.pdfIn PDF document text
    • https://vanchuyenduongsat.vn/upload/files/60091679951.pdfIn PDF document text
    • http://hoya889.com/upfile/files/20210905182223.pdfIn PDF document text
    • https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/5b9288664a6341b88c527ac6dca1e0a5/36422729597.pdfIn PDF document text
    • https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/47288138358.pdfIn PDF document text
    • https://majubesar.com/contents/files/tinisurepukuzixa.pdfIn PDF document text
    • http://carbonelite.ru/file/fajeduluv.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/TSvcnjQ06Jg/uplcv?utm_term=jersey+city+public+schools+salary+guidePDF 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_off0000c837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC837 17140 bytes
SHA-256: f408e61fb6cb10fbbcf9c99cefd291884d554ae5386717a6ec47c9484c6dab0c
font_01_sfnt_off0000f504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF504 11032 bytes
SHA-256: 43fd72c19c0e0be05dc3fa592dabd733731e8484a61d389ccbf127abc7782f32
font_02_sfnt_off00010e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E71 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef

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