Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d80bf593b52b5f…

MALICIOUS

PDF

75.3 KB Created: 2022-05-24 09:47:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 0670b5e91a444701515c34ec75a9cb0d SHA-1: faea7a2cef7fed1d0a7c9c4759d9c279ebfc77a5 SHA-256: c5d80bf593b52b5fc30001188fe739c92de01a22ad24ee6185501a93c16e70f3
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=dangling%20modifier%20worksheet%20middle%20school%20practice%20test%20answer PDF link annotation
    • http://kifei.ru/files/files/pejexapiwapegiwovenu.pdfIn PDF document text
    • https://vefiwuzozubeki.weebly.com/uploads/1/3/0/9/130969791/zuloruwota-nafuvifose-davoteriganefu.pdfIn PDF document text
    • http://adams-gold.ru/archive/image/file/98972864008.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16244cf2778634---xosolexubakux.pdfIn PDF document text
    • https://vejuvofarazaxar.weebly.com/uploads/1/3/4/3/134355137/4122072.pdfIn PDF document text
    • https://ribovaboj.weebly.com/uploads/1/3/0/7/130775049/cec227bb832eeb.pdfIn PDF document text
    • https://dufadijikog.weebly.com/uploads/1/3/5/3/135325035/ximanigafapukul_nirinazateba_robuno.pdfIn PDF document text
    • http://winfielddeli.com/ckfinder/userfiles/files/wumowadotex.pdfIn PDF document text
    • https://habibitours.com/ckfinder/userfiles/files/rupimumowagudodoguz.pdfIn PDF document text
    • http://okwmd.com/upload/fckeditor/file/bavibamoveragoto.pdfIn PDF document text
    • https://lenaoyunlar.net/calisma2/files/uploads/sukowuduzudirusolokod.pdfIn PDF document text
    • https://zubosevofugojat.weebly.com/uploads/1/3/4/3/134307347/8776538.pdfIn PDF document text
    • https://rigozanukamesok.weebly.com/uploads/1/3/4/5/134508669/5489409.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/48997794906.pdfIn PDF document text
    • https://lecormier-menuiserie.com/www/upload/files/vulumasupipugunonuje.pdfIn PDF document text
    • https://enilubricantvn.hoakhanh.vn/uploads/image/files/97882770563.pdfIn PDF document text
    • https://strefaokazji.pl/uploaded/file/4268350250.pdfIn PDF document text
    • http://www.verneteco.com/ckfinder/userfiles/files/serisobuvakisaguridu.pdfIn PDF document text
    • http://mediacast.vn/ckeditor/upload/files/fojawetibow.pdfIn PDF document text
    • https://bdaudit.ro/userfiles/file/dunubeludusinoruwu.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_off0000be3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE3F 17100 bytes
SHA-256: dfc33a51ff30435544c9acfbddd2f9680ede8bdd9f1d432aa341ea0c86afefef
font_01_sfnt_off0000ead4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD4 11244 bytes
SHA-256: a40e83085bba5d41e49bb25de52a6a8bf39947fd0678945aa298db901d1e79fe
font_02_sfnt_off000104d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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