Malicious PDF — malware analysis report

Static analysis result for SHA-256 478b4415a9ed7dae…

MALICIOUS

PDF

93.8 KB Created: 2021-10-06 01:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 52f2e182679790c3634e7a598dbf5e72 SHA-1: 1c9e909ce4148cc42bbcb88d25955e98dc249210 SHA-256: 478b4415a9ed7daef0df644ebc47f958941bc772399ca647213e70dea90475f3
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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
  • 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://wastran.ru/uplcv?utm_term=french+montana+download PDF link annotation
    • https://zbmbudomont.pl/userfiles/file/ganidipinuma.pdfIn PDF document text
    • http://uzunlarpeynir.com/dursun/upload/files/doluxobige.pdfIn PDF document text
    • https://makenie.com/upload/files/zevajapel.pdfIn PDF document text
    • http://gordostcrista.ru/userfiles/file/bimapenipawowifavo.pdfIn PDF document text
    • https://exclusivelimoservice.com/ckfinder/userfiles/files/lusimodixefaja.pdfIn PDF document text
    • http://teifsepahan.com/files/file/witiwuvukepifizos.pdfIn PDF document text
    • http://laboratorioshamalab.com/userfiles/file/kujizafoduxa.pdfIn PDF document text
    • http://leinerpakgelatine.com/survey/userfiles/files/1717394542.pdfIn PDF document text
    • http://hosteleriayvending.com/ckfinder/userfiles/files/62222332437.pdfIn PDF document text
    • http://pappteam.hu/userfiles/file/78485280987.pdfIn PDF document text
    • https://ismart99.net/upload/files/59487570503.pdfIn PDF document text
    • http://space-edge.com/upload/files/88095459823.pdfIn PDF document text
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141538178ae5---80946588888.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161537e28e8665---noluwalapitawapitodig.pdfIn PDF document text
    • http://cnhhgj.com/upfiles/userfiles/file/wutunavitilikoveruxuli.pdfIn PDF document text
    • http://rent2day.ca/ci2/userfiles/files/501970622.pdfIn PDF document text
    • http://3dtechgroup.com/uploads/image/files/60944202711.pdfIn PDF document text
    • http://crisismobile.com/ckfinder/userfiles/files/8348803779.pdfIn PDF document text
    • http://www.agot.pl/upload/file/vazudiwo.pdfIn PDF document text
    • http://lecostationery.com/files/file/tabajirinizajarikilegib.pdfIn PDF document text
    • http://sake2metustin.com/uploads/files/gofalupuzikexitinoveki.pdfIn PDF document text
    • https://5ky13lu3-1251.com/contents/files/76368947703.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_off000102fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102FA 21216 bytes
SHA-256: 1248903cb941ce33df0cc47e5158d0b690fc996733fdd1e601b0c661fbc4f998
font_01_sfnt_off00013a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A3E 10436 bytes
SHA-256: cb46835b803012776db21d7bceaf19b655129794df5a89ad72cff1afe0f75eb4
font_02_sfnt_off000151be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x151BE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1