Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0995558ad592b3…

MALICIOUS

PDF

210.3 KB Created: 2022-01-02 05:48:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 4dab0a0ff36cdb03f92c9ff9ff5148aa SHA-1: eb63cf24e59c3a42724e60de45bd23a01b58f336 SHA-256: fb0995558ad592b3ed5807c216a8843f9d8f3a6712bdaa4d62fc46605c9a1e48
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8308

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://alconsprom.ru/ckfinder/userfiles/files/xovatoxadan.pdf In PDF document text
    • https://sbmhavacilik.com/userfiles/file/gaxivepuguwamito.pdfIn PDF document text
    • https://thietbigas.net/media/files/45220596516.pdfIn PDF document text
    • http://tomrerjm.server2.dk/userfiles/file/kugipifaduzisat.pdfIn PDF document text
    • https://novinfasteners.com/userfiles/file/bixogoxiwugimug.pdfIn PDF document text
    • https://ville-saintleonard.fr/pdf/sipulaginasedo.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/161874a3125819---32686419588.pdfIn PDF document text
    • http://ci-tesco.com/kcfinder/upload/files/veziloba.pdfIn PDF document text
    • http://theemasternetworker.com/ckfinder/userfiles/files/92610705352.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/nogexufataxigumevew.pdfIn PDF document text
    • https://adikmanis.com/contents/files/mopidijolizigewonimifa.pdfIn PDF document text
    • http://sxcec.org/userfiles/file/55732648609.pdfIn PDF document text
    • http://creaorganization.com/depo/sayfaresim/file/nebunuvurajenap.pdfIn PDF document text
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1618537f7d0770---ridurofusadupefibibu.pdfIn PDF document text
    • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/7d0d3131a2acbe1d07603baa794144c5/67875406398.pdfIn PDF document text
    • https://montferri.com/admin/js/plugins/kcfinder/upload/files/33136626936.pdfIn PDF document text
    • http://aow.infogestnet.it/ckfinder/userfiles/files/gimuroz.pdfIn PDF document text
    • http://beijingxinzhi.com/userfiles/file/20211028032714_50149061.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1617be0ecedab1---sorabarutedumireg.pdfIn PDF document text
    • http://roosprommenschenckelfoundation.nl/userfiles/file/46357930444.pdfIn PDF document text
    • https://godahoian.com/app/webroot/upload/files/jifetama.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/BcFPVxLj4jw/uplcv?utm_term=extraction+lab+report+benzoic+acidPDF 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_off0002dbe1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002dbe1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002dbe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DBE1 10624 bytes
SHA-256: 19dfad29823409b1b0d30da79c6e8ae58bbe96925e9e4ac22213a9a27fa65c61
font_01_sfnt_off0002f415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F415 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00030ab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AB4 18152 bytes
SHA-256: cab8808f0546835de168590650162e097576ffc43ab9fa3d552e3c387c77d31c