Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd659f078ddd5f7…

MALICIOUS

PDF

81.8 KB Created: 2021-10-20 17:10:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: b526b33357390372766ef3b86d5c96e6 SHA-1: cac489a16da49176bde91687cde3b20e6d38182c SHA-256: 3dd659f078ddd5f7ac6ef107768d9674367c12a874e6aeb23c3c0ef6d73771b2
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://bhavanarayanaswamy.org/userfiles/file/gatenos.pdf In PDF document text
    • https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/tuvaselapitepafanapofa.pdfIn PDF document text
    • https://www.poolsrus.com.au/application/third_party/ckfinder/userfiles/files/35336286339.pdfIn PDF document text
    • http://suchanekstomatolog.pl/files/file/tujusiwe.pdfIn PDF document text
    • http://ylgems.com/file_media/file_image/file/bokesokosejomebo.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/98433418927.pdfIn PDF document text
    • http://obrazyramix.pl/userfiles/file/12060197148.pdfIn PDF document text
    • http://minipit.com/data/files/25724652202.pdfIn PDF document text
    • http://cgmorenanews.com.br/ckfinder/userfiles/files/mijedanunawufirabazoduje.pdfIn PDF document text
    • http://red-persimmons.com/upfiles/editor/files/50807819580.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/8daa9c4a2618f06efcabaa68af937ca0/rebanavosajafojulomomoz.pdfIn PDF document text
    • http://kartywspomnien.pl/uploads/assets/file/72118533966.pdfIn PDF document text
    • http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/23179267983.pdfIn PDF document text
    • http://liveisagenix.com/ckfinder/userfiles/files/fesimuteduliwikopazu.pdfIn PDF document text
    • http://simsvizag.com/admin/uploadedfiles/file///80062636572.pdfIn PDF document text
    • http://proxima-design.cz/files/file/rupufadejenadaranovi.pdfIn PDF document text
    • http://radyoislam.com/resimler/files/5673510505.pdfIn PDF document text
    • http://flexa.cz/docs/file/nuvesarizilebosexew.pdfIn PDF document text
    • http://madiagranitosilano.it/userfiles/files/40005304651.pdfIn PDF document text
    • http://kccmaul.com/files/files/roxixitudeluti.pdfIn PDF document text
    • http://thanhnienxp.com/vietkiendo/upload/file/74505601479.pdfIn PDF document text
    • https://honkakuji.jp/honkakuji/images/ckfinder/files/nezugagazebavilelufixeku.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/cmwvf4RlXg4/uplcv?utm_term=square+root+of+a+numberPDF 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_off0000d827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD827 19032 bytes
SHA-256: d90f973f3becaa5b196e0888169a914f17b8ae1600c55b18095ccec6a137613e
font_01_sfnt_off000109c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109C2 10532 bytes
SHA-256: fb1d0029ac33f2a6fc7e84ee2b33839d5d49886c0b472c317637493c4f5d0dff
font_02_sfnt_off000121c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121C8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1