Malicious PDF — malware analysis report

Static analysis result for SHA-256 de474b144a8fdc4b…

MALICIOUS

PDF

83.2 KB Created: 2022-04-19 06:31:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-03
MD5: 25156285f8ca11607920c03d0b90227a SHA-1: 647103ff977ebdc62d012d981647cc5695f771b7 SHA-256: de474b144a8fdc4b71f8892fdeedbe5e13621bc7763fb3b45369bbcc5cea8f24
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://rracc.com/file_media/file_image/file/lufexiromafegexoruneni.pdf In PDF document text
    • https://lepekogiba.weebly.com/uploads/1/3/1/6/131637498/08b52b62b01e.pdfIn PDF document text
    • http://autoscuolemontagna.it/userfiles/files/madasejijudilarige.pdfIn PDF document text
    • http://nextgems.com/ckeditor/kcfinder/upload/files/80841371014.pdfIn PDF document text
    • http://unii-dz.org/app/webroot/js/kcfinder/upload/files/27671122459.pdfIn PDF document text
    • https://mogekalama.weebly.com/uploads/1/3/4/7/134741787/ae6c06e270b.pdfIn PDF document text
    • http://zabradli-znerezu.cz/userfiles/file/zepor.pdfIn PDF document text
    • https://kojoridenifuzav.weebly.com/uploads/1/3/1/4/131406931/tifuz.pdfIn PDF document text
    • https://simofegike.weebly.com/uploads/1/3/1/6/131636923/2ae3440f5337a.pdfIn PDF document text
    • https://biwalude.weebly.com/uploads/1/3/4/6/134613088/bufexokuwemapag.pdfIn PDF document text
    • https://gabopubowiton.weebly.com/uploads/1/3/4/5/134596717/kofawukukiwewugutefe.pdfIn PDF document text
    • https://tecnomatec.cl/upload/file/detevodulesunovovadetaf.pdfIn PDF document text
    • http://insuralead.com/userfiles/file/dalomowiru.pdfIn PDF document text
    • http://yas-center.ru/userfiles/file/65196385515.pdfIn PDF document text
    • http://nguyenphat.com/public/default/ckeditor/files/monezajanawepatado.pdfIn PDF document text
    • https://vupolape.weebly.com/uploads/1/3/4/7/134749420/9bb99b9d25d6a4b.pdfIn PDF document text
    • https://tamilifikex.weebly.com/uploads/1/3/5/3/135321075/kidexozubodovetibi.pdfIn PDF document text
    • http://kartywspomnien.pl/uploads/assets/file/89071344450.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1623e7679759fb---daxanige.pdfIn PDF document text
    • https://lumakevapex.weebly.com/uploads/1/3/5/3/135311332/599842054e.pdfIn PDF document text
    • https://vnjhanoi.com/upload/files/mujumoji.pdfIn PDF document text
    • https://cafij.co.za/YmrXLWy8?keyword=weider%20pro%206900%20workout%20planPDF 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 extracted file (font_00_sfnt_off0000dbb0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dbb0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB0 18084 bytes
SHA-256: 48faaf29fb1a405b9e8656e0e6438b34110c0afe54cca731d7815bd24b9d8c53
font_01_sfnt_off00010b3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3C 10944 bytes
SHA-256: 142bbb44994e102560cc1bb334ac90fa3eb2606d77c8b1f1acaa6b78d0395966
font_02_sfnt_off000124a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124A3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1