Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2cb1990509b2d5…

MALICIOUS

PDF

81.9 KB Created: 2022-04-03 01:34:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 1cf063db12125e690be1f4edf6121ea5 SHA-1: 70daf36166720e2639b4a57d072107e249350925 SHA-256: af2cb1990509b2d55cd3361c2dda27fdfc64db0b5120ef9df3e6f063a171f221
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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 https://lazav.co.za/YmrXLWy8?keyword=cu%C3%A1l%20es%20la%20estructura%20de%20un%20texto%20de%20divulgaci%C3%B3n%20cient%C3%ADfica PDF link annotation
    • https://producedepot.us/userfiles/files/zetibekeluzajevaj.pdfIn PDF document text
    • https://vurofagulomefu.weebly.com/uploads/1/3/1/4/131452840/limozavovo_jolasepudi_sufodafemopuku_vewozobojix.pdfIn PDF document text
    • https://mabudorowux.weebly.com/uploads/1/3/4/4/134458492/garike.pdfIn PDF document text
    • https://garmin10.ddbseven.cl/userfiles/file/topekofusu.pdfIn PDF document text
    • https://xopapirepukonut.weebly.com/uploads/1/3/6/0/136053795/9c855819c6d2f.pdfIn PDF document text
    • http://www.greddy.com/admin/common/ckfinder/userfiles/File/ditanazurasadi.pdfIn PDF document text
    • https://zopoxetofosifa.weebly.com/uploads/1/3/4/8/134863155/gegirexudosu.pdfIn PDF document text
    • https://zijobukevas.weebly.com/uploads/1/3/1/4/131454580/0aa8af713d11cf.pdfIn PDF document text
    • https://dijamolilum.weebly.com/uploads/1/3/5/3/135347404/3655641.pdfIn PDF document text
    • https://tawozajoruje.weebly.com/uploads/1/3/4/3/134314125/16672b21d5b5.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/162167e2997d77---53858731846.pdfIn PDF document text
    • http://salda.lt/saldus/kcfinder/upload/files/lipanadorubozukufewoxud.pdfIn PDF document text
    • https://sport-jicin.cz/dokumenty/7757587653.pdfIn PDF document text
    • https://reytrans.es/kcfinder/upload/files/ribarepowisarefopejalute.pdfIn PDF document text
    • https://xaxarudo.weebly.com/uploads/1/3/0/7/130740130/pokisibiso.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1620d5fed9b7bd---kavofigesazukojugakin.pdfIn PDF document text
    • http://lavrstroy.ru/img/photo/files/81357810358.pdfIn PDF document text
    • https://famopedudir.weebly.com/uploads/1/3/5/9/135978287/c2b7a4d02.pdfIn PDF document text
    • https://renetravel.ro/images/files/38131766534.pdfIn PDF document text
    • https://testgit.begurholidays.com/uploads/userfiles/files/30844148217.pdfIn PDF document text
    • https://letonezesuju.weebly.com/uploads/1/3/1/3/131383444/0b3ea521aa2428c.pdfIn PDF document text
    • https://ijtm.in/userfiles/file/28390997363.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_off0000d382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD382 18660 bytes
SHA-256: 821143815ba9609a096277a49067cd72e1e0e999057f101761ea58ea62375065
font_01_sfnt_off00010326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10326 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B3D 11332 bytes
SHA-256: 54d5cf3934e962ea7a95453685da9a8f85532d3b2895d853db19dca82c4c622d