Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d392c8e1a85ee42…

MALICIOUS

PDF

235.6 KB Created: 2022-01-05 23:16:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 2305a14956e5fd5a7a148601953b4e14 SHA-1: 68ceaad1bd9fa096ad37b96a3499980d1f31b33f SHA-256: 5d392c8e1a85ee428c73ce673e669e118b842c83b5c837f8774733b776650fc7
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8203

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://www.bargiel.com.pl/ckfinder/userfiles/files/31557675235.pdf In PDF document text
    • https://ccs-corporation.com/ckfinder/userfiles/files/biguberanefifutafigixame.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617d2100e2666---19198783977.pdfIn PDF document text
    • https://ppuhperspektywa.pl/files/edytor/file/35613723260.pdfIn PDF document text
    • http://lovesenergy.com/file/bagubevegegivi.pdfIn PDF document text
    • http://yilbasipromosyonu.com/userfiles/file/pebowigetupowagimun.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619a133675bbb---34672131045.pdfIn PDF document text
    • https://colisee.kopro.fr/userfiles/file/54478445980.pdfIn PDF document text
    • https://vanha.kokkolansuunnistajat.fi/ckfinder/userfiles/files/zitazulugoberujefeki.pdfIn PDF document text
    • http://spartaksedlec.cz/spartaksedlec/userfiles/file/sotobisaxojije.pdfIn PDF document text
    • http://immobilieninvestors.com/userfiles/file/50183119051.pdfIn PDF document text
    • http://banhangcongnghe.com/upload/FCK/file/90962877302.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161929400ab42b---lodivofizenigu.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161666a85884f4---mulep.pdfIn PDF document text
    • http://evevoyance.fr/adh/.-/file/10444025603.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619c88012d693---lijinof.pdfIn PDF document text
    • http://trevelci.ru/ckfinder/userfiles/files/neruxorerexuxi.pdfIn PDF document text
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b7f05d3a2e7---kuzikunalitulekiwexudul.pdfIn PDF document text
    • https://caror.hu/ckfinder/userfiles/files/22556703753.pdfIn PDF document text
    • https://clubledomaine.com/assets/kcfinder/upload/files/bemeretinemaburipudoz.pdfIn PDF document text
    • http://strahovka66.ru/userfiles/file/59680689335.pdfIn PDF document text
    • http://lncxjzxxw.com/upload_fck/file/2021-11-17/20211117203045591042.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/KGDyd8lM0uI/uplcv?utm_term=catholic+confirmation+invitation+templatePDF 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_off00033dad.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00033dad.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00033dad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33DAD 10672 bytes
SHA-256: 75644904f7a65ad1fe0cd3dbbbed0e7e75231d89befb3c1821f1bf3beae6a6a1
font_01_sfnt_off000355f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x355F6 19528 bytes
SHA-256: e70e63864ba351f6833ca4b634fd6b0d83fb2104c2a4a7dad1d9e28f534b971c
font_02_sfnt_off000388a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x388A1 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336