Malicious PDF — malware analysis report

Static analysis result for SHA-256 011cf3fa6c4daacf…

MALICIOUS

PDF

336.7 KB Created: 2022-01-07 19:33:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: 38a91b9daec63c5d97f440ef7228b2c6 SHA-1: fe2d947d7c9a519fa845bfcdfb1539b43352e563 SHA-256: 011cf3fa6c4daacfea5bd20d114eb414a6e9d5801b44f1027e176eab151b1bfb
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9667

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://concienciafiscal.com/kcfinder/upload/files/71929658130.pdf In PDF document text
    • http://cpk.by/ckfinder/userfiles/files/visixigabosunun.pdfIn PDF document text
    • http://eiak.org/upload/editor/files/navemej.pdfIn PDF document text
    • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/b1789327639c3f6e328bfbaa73005107/85810712164.pdfIn PDF document text
    • https://lazerom.pro/media/file/12630890522.pdfIn PDF document text
    • http://bpsstudio.hu/uploads/73955001157.pdfIn PDF document text
    • http://zuche0551.com/upload/file/80905160768.pdfIn PDF document text
    • https://tranduongauto.com/app/webroot/files/images/pages/files/75984814199.pdfIn PDF document text
    • http://meuble-tunisie.com/userfiles/file/47109246618.pdfIn PDF document text
    • http://aygroupmuh.com/image/files/28042505344.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132fe8c2e5c8---84413582866.pdfIn PDF document text
    • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16158bea244d4b---36181106884.pdfIn PDF document text
    • http://www.ville-dammarie.com/ckfinder/userfiles/files/tazubefotalobemexadonut.pdfIn PDF document text
    • http://www.fonfe.com/uploads/files/vudet.pdfIn PDF document text
    • http://zulassungsservice4you.de/bilder/file/16937379253.pdfIn PDF document text
    • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/1f808f7235a3e1702c30f3d89b4223fb/76113881673.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/7xhmvLXWVJc/uplcv?utm_term=piriformis+muscle+compresses+the+sciatic+nervePDF 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 extracted file (font_00_sfnt_off0004d805.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d805.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d805.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D805 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004eea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EEA4 17384 bytes
SHA-256: d07502697d17199586e7b0214df578da40417382953df11fb56920be00f55fa5
font_02_sfnt_off00051b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51B83 10912 bytes
SHA-256: d00a19e0f71ab5a781ff0366b559e4d2dabf0deade7adc3204c0cd7077c1086a