Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2e6441ec5b5078…

MALICIOUS

PDF

325.6 KB Created: 2022-01-01 03:44:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 9077692aa49e7645e83c9864880af1e3 SHA-1: 31b685e1af2c20ddb501da56b7ea1a7e0076e046 SHA-256: af2e6441ec5b507827c0dc93cdbe356100ea7db45f7f907a19fd4f5484dec383
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7916

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 https://medvor.ru/uplcv?utm_term=blackpink+forever+young+dance+practice+free PDF link annotation
    • https://postele-z-masivu.sk/ckfinder/userfiles/files/62722264441.pdfIn PDF document text
    • http://bebegim.nl/userfiles/file/73267722490.pdfIn PDF document text
    • http://mopron.ru/upload/files/91648350947.pdfIn PDF document text
    • https://linhancomvn.xelinhan.vn/userfiles/file/domikawe.pdfIn PDF document text
    • http://dolphinegypt.net/userfiles/file/vejekusewidijotaduxufo.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616ce97889514---gimetepifuda.pdfIn PDF document text
    • http://busankid.com/webfiles/board/file///tesuga.pdfIn PDF document text
    • https://biblioteka-koneck.pl/ckfinder/userfiles/files/koliwigigagiveg.pdfIn PDF document text
    • https://bestcaps99.com/ckfinder/userfiles/files/rodofif.pdfIn PDF document text
    • https://chsins.tw/uploads/files/202109031102551994.pdfIn PDF document text
    • https://tktravelkorea.com/FileData/ckfinder/files/20211118_BA67A190A1D36CAA.pdfIn PDF document text
    • http://socialinvestment.eu/templateEditor/kcfinder/upload/files/kesuboxovosowesitekupuma.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614671224ee3e---kinajeze.pdfIn PDF document text
    • https://excore.hu/ckfinder/userfiles/files/30441353044.pdfIn PDF document text
    • http://klawiatury-foliowe.pl/_data/file/21709658022.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/ebdd98ed5d19c13c519631809c374ddb/fefakutezut.pdfIn PDF document text
    • http://mobilesamara.com/img/files/file/31822939366.pdfIn PDF document text
    • http://020tzs.com/baige/images/userfiles/file/giguwodatusij.pdfIn PDF document text
    • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/2mbbkcud08mucgboo43hlit6ph/kulelenuxas.pdfIn PDF document text
    • https://jsptti.com/ckeditor/ckfinder/userfiles/files/49793802791.pdfIn PDF document text
    • http://lateonsettay-sachs.org/userfiles/file/99562555580.pdfIn PDF document text
    • http://kammatrans.com/userfiles/files/fidesofo.pdfIn PDF document text
    • http://nesthomes.in/userfiles/file/50801807274.pdfIn PDF document text
    • 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_off0004a67f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A67F 18692 bytes
SHA-256: 7f6620be42b0b728fbe79cdec94190c15b7df23af9e69ec8629a5e64be0a3474
font_01_sfnt_off0004d73b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D73B 11052 bytes
SHA-256: 9b57d8164dd02254e9a9c937ee895d1e4c7491c9249e781bb3b4dee17cad910c
font_02_sfnt_off0004f0f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F0F4 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336