Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af7411266831758…

MALICIOUS

PDF

97.8 KB Created: 2021-09-13 04:36:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 7e540eade76071f81fc0284c41104153 SHA-1: ee35b5111672d457df9fa4893b33421aeca5dfc8 SHA-256: 4af741126683175830ad99d847b2c4109d654a368fbfd67bc1d9c719b094f795
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613919f7ba03e---41560076489.pdf In PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613e7f535171a---44382589071.pdfIn PDF document text
    • http://psn-monolit.ru/img_file/files/47936600608.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/299ac13babe001187ea6ab3e0b9427a2/49105662758.pdfIn PDF document text
    • http://hoangnamjsc.com/upload/files/luzuvorad.pdfIn PDF document text
    • https://strategieb2b.ca/userfiles/file/87687931573.pdfIn PDF document text
    • https://vitanov.rs/files/wokakivagupodebomaze.pdfIn PDF document text
    • http://presssimayeshahr.ir/pic/file/bezufadewuxamarifuromelon.pdfIn PDF document text
    • http://jj-metals.com/userfiles/file/2021090202565373499.pdfIn PDF document text
    • https://bravo-hk.com/userfiles/file/49629046306.pdfIn PDF document text
    • https://tigapilar.com/upload/files/85027152238.pdfIn PDF document text
    • http://h-n-s.net/userfiles/file/pixibodufiwasobomogekutav.pdfIn PDF document text
    • http://le-nora.com/userfiles/file/lotij.pdfIn PDF document text
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/hlho08fdnm1noorep1s8r0e4at/mijuj.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf337256b2---86304010681.pdfIn PDF document text
    • http://www.ferm-matic.fr/upload/file/34054154667.pdfIn PDF document text
    • https://eastmangroup.org/ckfinder/userfiles/files/fukuwe.pdfIn PDF document text
    • http://jszl-rolls.com/filespath/files/20210908162234.pdfIn PDF document text
    • https://fotoprint.lv/downloads/file/40828738085.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/49757778976.pdfIn PDF document text
    • http://hotelgiottotorino.com/userfiles/files/30414690833.pdfIn PDF document text
    • https://jiu-hang.com/upfiles/editor/files/73234289739.pdfIn PDF document text
    • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/67362418310.pdfIn PDF document text
    • http://diagnosticaedilizia.com/userfiles/files/xerapanagixorexepe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=gta+san+andreas+android+gamepadPDF 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_off000117aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117AA 10728 bytes
SHA-256: cf8936da8d0d72c2a83a8aca5f12981501c4603d8068dbe2792a9eefb491e431
font_01_sfnt_off0001301a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1301A 18488 bytes
SHA-256: 770acbee8ecf4d1ba290edf8830d53661cf306e9d413404295570436de43d8a3
font_02_sfnt_off00015fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15FCA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1