Malicious PDF — malware analysis report

Static analysis result for SHA-256 941f58f0f0a890cf…

MALICIOUS

PDF

80.5 KB Created: 2021-08-29 02:55:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 403a0d7e538e365ab2d270919631b1e7 SHA-1: 03ef77242433f41e3569737e1365cf67138de67d SHA-256: 941f58f0f0a890cf0c070776ac21e9f31bd637db3cca4b68bfde0aaae100fe02
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 http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a63934c4d93---gafobodagus.pdf In PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/vtb4bmje527maf54893a6las92/58444534018.pdfIn PDF document text
    • https://livnica-metalurg.com/images/pages/file/gepenadiveti.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c950e6041ba---darifu.pdfIn PDF document text
    • http://espacioschillout.es/images/admin/file/kuwovugamidezinemokod.pdfIn PDF document text
    • http://takeacode.eu/user/d41d8cd98f00b204e9800998ecf8427e/file/58588692024.pdfIn PDF document text
    • https://www.educazionesessuale-scuola.ch/ck/ckfinder/userfiles/files/81478576341.pdfIn PDF document text
    • https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/b26a06241fb269e5f9a236a50939da0f/20560551703.pdfIn PDF document text
    • http://hieuchuan.com/upload/files/mogusasoboteposa.pdfIn PDF document text
    • http://samtle.net/ckupload/files/lixovojisivim.pdfIn PDF document text
    • http://midel.me/userfiles/file/vukuxidukipoz.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/e6a2aa338013778b806cd9589b1d4c55/31451488143.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/97918bc561b93512ae27f06b5d921e70/nexaxafotive.pdfIn PDF document text
    • http://hanasushichoice.com/uploads/files/lirake.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086db8378044---xabumevetom.pdfIn PDF document text
    • http://snsi.jp/image/news_file/84396528442.pdfIn PDF document text
    • https://takipbizde.com/calisma2/files/uploads/voribikaxabojolu.pdfIn PDF document text
    • http://sdds.be/userfiles/file/pupekevusizola.pdfIn PDF document text
    • http://commune-bourre.com/userfiles/file/45389567014.pdfIn PDF document text
    • https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/as7nagkjcdijm68kh581lpb8m3/54098461944.pdfIn PDF document text
    • https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/12557327048.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160f6a72161743---28596977478.pdfIn PDF document text
    • http://gildiamasterov.ru/userfiles/file/95209366544.pdfIn PDF document text
    • https://alatheir.com/atheirwsfiles/file/kimulekilojigelubew.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=unscramble+words+worksheet+with+answers+pdfPDF 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_off0000d59d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD59D 11208 bytes
SHA-256: d36e22b097912beafd6048f96d435426a72dd8d04dd216e333a0f0a94aa4a751
font_01_sfnt_off0000ef7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001078f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1078F 16800 bytes
SHA-256: 28f35efa0c8df317d3cf88d65b2b764ffebdaa7adbd9013360ff91b65b50e98c