Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f68b5c12c77509…

MALICIOUS

PDF

70.1 KB Created: 2021-09-30 13:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 50aaea562757bb8f38fc25e3de7a7257 SHA-1: 403eb7bf3d4937d524465a969a6c82f79789cc34 SHA-256: f2f68b5c12c775090cc3c5d6012ecef0456167e0dc23a6027533e7caa1b70755
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://tolgyesvolgy.hu/userfiles/file/55788225724.pdf In PDF document text
    • https://xn--z4qq44i.tw/upload/actfiles/69893665268.pdfIn PDF document text
    • https://normec-cm.com/ckfinder/userfiles/files/84720843226.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16131af6c6ab02---22486220405.pdfIn PDF document text
    • https://bruceleevideos.org/images/file/63925560020.pdfIn PDF document text
    • http://www.musicboxpiano.com/contentfiles/23564579147.pdfIn PDF document text
    • http://dezmaster.com/userfiles/file/napodavunujitijamijow.pdfIn PDF document text
    • http://opusbiz.kr/data/editor/file/12333005061507aac24eb5.pdfIn PDF document text
    • https://globalmediaminds.com/uploads/files/54281804600.pdfIn PDF document text
    • http://gloria-eurex.com/images/blog/file/92195657183.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/548d7ddd6a001a2237c34cfb08139cab/rakakazomaxitipepowub.pdfIn PDF document text
    • http://lexxyin.net/files/fckeditor/file/runuvoxuwiluk.pdfIn PDF document text
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1613decc889fb0---7591504265.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152326336512---janefena.pdfIn PDF document text
    • http://rollaktif.com/images_upload/files/xinefizaz.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/f55960db3b15526dca0bef82bc2e9055/32332817771.pdfIn PDF document text
    • https://beldapromosyon.com/calisma2/files/uploads/34725002665.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161371153acb30---12331734355.pdfIn PDF document text
    • https://penzion-palice.cz/content/remoxozugilo.pdfIn PDF document text
    • https://testagenda1.myagenda.cz/pictures/editor/files/38314241856.pdfIn PDF document text
    • http://www.anglometais.com.br/adm/Editor/ckfinder/userfiles/files/35992130451.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411854355a2---razixowixidimafotopox.pdfIn PDF document text
    • http://kyanite.tv/userfiles/file/goxapafabikigodudaxezed.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=definition+of+curriculum+by+hilda+tabaPDF 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_off0000b261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB261 15560 bytes
SHA-256: 6a1a1f166761f6fa4aaaa3cd0d14405f5c3c178aa11b62bfb6a54a6d13ffb8be
font_01_sfnt_off0000d921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD921 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF138 10928 bytes
SHA-256: 8db2ab5f391578085b1f3e6705d2f00be3d417f39b069170cf81afcc72264b27