Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d192cc720efa95…

MALICIOUS

PDF

160.7 KB Created: 2021-12-07 09:58:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: d9fff6a905e108e90cb41aa4a40e7965 SHA-1: 3bef7781a459cd1a20f6334d524962ea1cd64f23 SHA-256: c5d192cc720efa95110bba36f19369e3d971843b9ecefec08bd89b6b2f69a3a8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9664

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://bodamvientin.com/uploads/userfiles/file/gorawewokepenexigakelif.pdf In PDF document text
    • http://www.otevrenysklep.cz/ckfinder/userfiles/files/pukurerodedopefuvulez.pdfIn PDF document text
    • https://mahanakhon.pacedev.com/ckupload/files/35877493701.pdfIn PDF document text
    • http://wxmx.cn/upload/ckimg/files/202109011100077111.pdfIn PDF document text
    • https://goez1.com/10005001208290177/ckfinder/userfiles/files/fujigoxadomuv.pdfIn PDF document text
    • http://littlepearlspublishing.in/data/eimages/file/35730122512.pdfIn PDF document text
    • https://etest.vn/app/webroot/uploads/files/sepugamix.pdfIn PDF document text
    • http://newabel.com/ckfinder/userfiles/files/8344230682.pdfIn PDF document text
    • https://www.renouer-auxerre.com/ckfinder/userfiles/files/xajuveg.pdfIn PDF document text
    • http://fitviewer.de/files/file/34058846080.pdfIn PDF document text
    • http://saltokisport.com/uploads/files/zupodorifupebefupadule.pdfIn PDF document text
    • https://whitesal.com/data/images/file/6800_20210909122809.pdfIn PDF document text
    • http://maxbrio.kr/files/files/venizifebefodekuvazem.pdfIn PDF document text
    • http://murito.fr/ckfinder/userfiles/files/52706318471.pdfIn PDF document text
    • http://max-metal.pl/gfx/file/84847620692.pdfIn PDF document text
    • http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/50558608682.pdfIn PDF document text
    • https://macroedunet.com/userfiles/file/libadunutatunexeregajerim.pdfIn PDF document text
    • http://aotwresort.org/ckfinder/userfiles/files/38339909114.pdfIn PDF document text
    • https://kinizsibank.inweb.hu/_user/file/feruzaxox.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161727e3b44a00---66473236367.pdfIn PDF document text
    • https://hoongnau.com/upload/files/tazusu.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/53646979658.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/1hHberoKktI/uplcv?utm_term=lightbot+2.+0+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_off00021538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21538 10452 bytes
SHA-256: 77711ced04d577eb8423c79a0ab66da478062ba963dea5cbd488f90d4dd3a33c
font_01_sfnt_off00022cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22CD9 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00024378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24378 18780 bytes
SHA-256: 3b1ee54127f868379d7ac6920110805635064073e3db3a33521ec6db8aafb592

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