Malicious PDF — malware analysis report

Static analysis result for SHA-256 de439aec244065d4…

MALICIOUS

PDF

76.8 KB Created: 2022-04-15 03:34:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-03
MD5: 9727e590871e141ae6c5d1675259dcea SHA-1: bace30fef6e2fbdfa78e300fd68bc3e904f5d429 SHA-256: de439aec244065d42a0c52d494c05d7b964622fab88e0d037d3041a65accd24c
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
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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://cafij.co.za/YmrXLWy8?keyword=patrick%20lencioni%20the%20ideal%20team%20player%20video PDF link annotation
    • http://www.nstrechy.cz/upload/files/rimadam.pdfIn PDF document text
    • https://www.xtraordinaire.org/web/kcfinder/upload/files/tarajabapo.pdfIn PDF document text
    • https://www.swiftcargo.com/adminlogin/kcfinder/upload/files/seworeduzisaja.pdfIn PDF document text
    • http://messtores.ca/fck_user_files/file/10943787586.pdfIn PDF document text
    • http://555banket.ru/kcfinder/upload/files/zipetakurotopaxiw.pdfIn PDF document text
    • https://damerararavobob.weebly.com/uploads/1/3/4/6/134693978/lakibibefizelibojobe.pdfIn PDF document text
    • https://vefurubaturuxal.weebly.com/uploads/1/3/0/7/130739777/dulerapavotefi.pdfIn PDF document text
    • http://hiroshima-teishaku.com/userfiles/file/62294786244.pdfIn PDF document text
    • http://www.louervendreaumaroc.com/kcfinder/upload/files/punetinob.pdfIn PDF document text
    • https://szerokiewody.pl/files/files/gujopitigiwelafodarazujaj.pdfIn PDF document text
    • http://alexdisinfestazioni.com/userfiles/files/29857035425.pdfIn PDF document text
    • https://nanagupuwaxa.weebly.com/uploads/1/3/5/3/135322083/5537814.pdfIn PDF document text
    • https://cosmetic.dilen.top/upload/files/bopinukupejejidib.pdfIn PDF document text
    • http://michael-dhom.com/webseiten/file/kutixejazuzisexo.pdfIn PDF document text
    • http://xfswchem.com/upload/files/melimogofinak.pdfIn PDF document text
    • http://acelybio.com/upload/files/xodawivomile.pdfIn PDF document text
    • http://www.anclupnapoli.it/userfiles/file/13328175123.pdfIn PDF document text
    • https://thailonghoang.vn/upload/files/fosugadawewusapalizenofuz.pdfIn PDF document text
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/ce49388c96b2bc3f16b6d24e149cc27c/senekodesepifowogi.pdfIn PDF document text
    • https://www.puskinas.lt/ckfinder/userfiles/files/tinuvi.pdfIn PDF document text
    • https://ligefunodimab.weebly.com/uploads/1/3/1/3/131398292/xinafudekajub.pdfIn PDF document text
    • http://sfipl.in/userfiles/file/lagoxiripar.pdfIn PDF document text
    • https://wimejevufafej.weebly.com/uploads/1/3/4/3/134379448/3285057.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/f11b985ae253410908441268c914d7b1/60798698469.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 extracted file (font_00_sfnt_off0000c674.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c674.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC674 17384 bytes
SHA-256: f6de3b868a3e2544f4a96af3cbd867cd483b813b02931ebc8aee7d2f51f6e38e
font_01_sfnt_off0000f3cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010be3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BE3 10884 bytes
SHA-256: 10ef287f9162bc5fcf3c37f5ea1d3841726abeed476522f3526bc1b6ff509022