Malicious PDF — malware analysis report

Static analysis result for SHA-256 793bae7249f498d9…

MALICIOUS

PDF

76.1 KB Created: 2021-09-05 17:33:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 54dd936c3691fb5ecb38e678e86e2f71 SHA-1: ce4fecaa040f22294694dd8227de9027a2b8628b SHA-256: 793bae7249f498d9b107d8f5dfd52e18757f83c4ed98cdfbe3b52bf2543a1b4e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/3dvgjt9s6nvs75msoe8gobtmp4/dufogadevaxebirojado.pdf In PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080cdf3e7cfc---pezotudug.pdfIn PDF document text
    • http://aptchasers.com/FCKeditor/userfiles/file/nunoremaniz.pdfIn PDF document text
    • https://medprobr.com.br/wp-content/plugins/super-forms/uploads/php/files/a2f92f6305cc99d010a4b0cfad98b62b/12914341018.pdfIn PDF document text
    • https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/jozidimevuxidosezexutij.pdfIn PDF document text
    • http://ventss.ru/userfiles/files/71727762816.pdfIn PDF document text
    • http://de-ko-gmbh.com/ckfinder/userfiles/files/megozosijuzujesuxeribez.pdfIn PDF document text
    • https://netiko.fr/img/Data/file/kawawimitoguwapo.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082896b7722e---bigeganisojulipatanirofos.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec3edbb5435---94764198640.pdfIn PDF document text
    • http://qiuyutv.com/userfiles/files/20210831121526.pdfIn PDF document text
    • https://adepotcustom.com/UploadFiles/file/20210429165652149.pdfIn PDF document text
    • https://joebalogh.ro/imagini_ws/juwiwoxijujutuzugakadud.pdfIn PDF document text
    • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/b1a245cb4d8da2a2f89459cb66405ab1/43182013194.pdfIn PDF document text
    • http://bonfiremadigan.com/uploads/fckeditor/file/36850318655.pdfIn PDF document text
    • https://contabil-fiscal.ro/mm/file/jafinin.pdfIn PDF document text
    • http://www.superior-inkjet.com/login/ckfinder/userfiles/files/fekenifupeseboxun.pdfIn PDF document text
    • http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/91698513045.pdfIn PDF document text
    • http://hyeminshop.com/DATA/files/fagif.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070b5a655567---84243287571.pdfIn PDF document text
    • https://turismopontevedra.com/ckfinder/userfiles/files/lazajixamedibokor.pdfIn PDF document text
    • https://ashleymongolia.mn/uploads/files/2003854802.pdfIn PDF document text
    • http://aiaato.com/FileData/ckfinder/files/20210607_0AADB867DDCFB6D5.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=distribucion+de+macronutrientes+para+perder+grasa+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_off0000c3a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A5 11156 bytes
SHA-256: 926f39593846ebd362d43f9ff416db895db537c12d2475523f2349512606f3ec
font_01_sfnt_off0000dd57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD57 17068 bytes
SHA-256: cab0b822ffb04a0e90a11449ba8397d1b80b7d292687b82c20354cb4769099f1
font_02_sfnt_off00010850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10850 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1