Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99e54ffafbcb279…

MALICIOUS

PDF

70.8 KB Created: 2021-09-12 01:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 35565b86e01fead71562f6ea04d8b307 SHA-1: befe70dc24ed28ee1b02c5e37861d83f2ed4420a SHA-256: f99e54ffafbcb2795c612b79ae45ba797d0b735c3feed5145209d58ccedf99a3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://sushibelovo.ru/files/97401721927.pdf In PDF document text
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1613d25153436a---majeruwejo.pdfIn PDF document text
    • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16134077373c8f---62338003305.pdfIn PDF document text
    • http://cablexconsulting.com/Upload/file/wogipofudadixo.pdfIn PDF document text
    • https://letajicikoberce.cz/userfiles/file/23211825544.pdfIn PDF document text
    • http://carbontuning.ru/file/netazisowewaku.pdfIn PDF document text
    • http://moristas.com/userfiles/files/43982405764.pdfIn PDF document text
    • http://an-ocn.ru/ckfinder/userfiles/files/96722186996.pdfIn PDF document text
    • https://www.smartfutureexpo.com/ckfinder/userfiles/files/piwifivobupafav.pdfIn PDF document text
    • https://kmkmekanik.com/upload/ckfinder/files/womefibosonupotene.pdfIn PDF document text
    • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/73170ebfd770b88f9993d8566cfe0403/73493126208.pdfIn PDF document text
    • http://gonzagafood.com/userfiles/files/lagopelurozetipimo.pdfIn PDF document text
    • http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/87997116131.pdfIn PDF document text
    • http://ed-union05.ru/files/file/dimuziwevelajotudefat.pdfIn PDF document text
    • http://biirbeh.mn/images/content/file/4117746089.pdfIn PDF document text
    • http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/9n47ev97f18i0tq9dbv2sici80/13412320139.pdfIn PDF document text
    • https://www.douggoodkin.com/admin/ckfinder/userfiles/files/tolozi.pdfIn PDF document text
    • http://www.thaiboat.net/image/upload/File/rasivuvupamunari.pdfIn PDF document text
    • https://tch.lu/files/files/69839677967.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb20754c0a---wujulimivegu.pdfIn PDF document text
    • https://whiteplacard.com/UserFiles/file/86758022828.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=peter+rabbit+2+watch+at+homePDF 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_off0000b22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB22A 10524 bytes
SHA-256: 33f0d709fd3540c8b476e34904f92f3125e407f6188e0fda744caed5f6637e9d
font_01_sfnt_off0000ca44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA44 16892 bytes
SHA-256: ed3f3580df79e4186d4f40099709bf950aacfbc565300ef5aaae16b7c60f65c9
font_02_sfnt_off0000f60f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF60F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.