Malicious PDF — malware analysis report

Static analysis result for SHA-256 7822f081724f76a3…

MALICIOUS

PDF

92.3 KB Created: 2021-10-10 20:50:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 1d77d57c407bfdb4ede1314742d66487 SHA-1: fdc017c9db6af92c49e3236e397b0e64bddef44a SHA-256: 7822f081724f76a39170b2b3e75af8218f1d7c8d429fd702863a2fabf3d2067e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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 https://queure.ru/uplcv?utm_term=rooftop+chiang+mai PDF link annotation
    • http://iviltra.lt/images/files/58420784398.pdfIn PDF document text
    • http://hnyinfeng.com/d/files/65560492675.pdfIn PDF document text
    • https://5a.ro/ckfinder/userfiles/files/13855752488.pdfIn PDF document text
    • https://dbhattacharjee.com/ckfinder/userfiles/files/dijasegonadobop.pdfIn PDF document text
    • http://asclyziarskyklub.sk/userfiles/file/24680623853.pdfIn PDF document text
    • http://affordableadobe.com/ckfinder/userfiles/files/juremugiwujotilonuv.pdfIn PDF document text
    • https://vinocastillo.hu/editor_up/15666045546.pdfIn PDF document text
    • https://hchoanglong.vn/userfiles/file/japorajizotofora.pdfIn PDF document text
    • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161315921cd5e4---150165361.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/292bc77100054fafc41a80b05579de0c/40688195321.pdfIn PDF document text
    • http://humanconsulting.cz/media/file/62113966392.pdfIn PDF document text
    • https://cnprint.ro/userfiles/file/paramul.pdfIn PDF document text
    • http://viprealestatebrokers.com/userfiles/files/bivixef.pdfIn PDF document text
    • http://ylpqzl.com/ckfinder/userfiles/files/zojavoketajevivop.pdfIn PDF document text
    • http://theshop24.com/userfiles/file/kigugesetupal.pdfIn PDF document text
    • https://infotechsystemsonline.com/ital/www/img/file/8647278638.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161353315a935c---waretupivebegoki.pdfIn PDF document text
    • http://baggiez.net/userfiles/file/fekolirufafugiwaxexuvonoz.pdfIn PDF document text
    • https://ripedzn.com/app/webroot/files/fckeditor/file/39524748954.pdfIn PDF document text
    • http://teamhead.net/userfiles/file/68951783626.pdfIn PDF document text
    • http://branonperformance.com/ckfinder/userfiles/files/bivuregibunumakupa.pdfIn PDF document text
    • https://kangaroovietuc.vn/webroot/img/files/gadiporozipetaxigeb.pdfIn PDF document text
    • http://ibnuaffan.com/ckfinder/userfiles/files/89596032038.pdfIn PDF document text
    • http://martonaroniskola.net/userfiles/file/83630496739.pdfIn PDF document text
    • http://moscowfashion.net/content/xuploadimages/file/rujexalatatuf.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_off0000fdf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF0 20512 bytes
SHA-256: e8927c56e559b0fac0d8961571af38d6249a9e9ad26f033ff578797240e2ddff
font_01_sfnt_off00013358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13358 10528 bytes
SHA-256: 8875a5cce0cc6935877f010eacef42c2ec31b7620c84c8ee56f40ec29d7a0206
font_02_sfnt_off00014b2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B2D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1