Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd467e481c8ce20f…

MALICIOUS

PDF

76.2 KB Created: 2021-02-25 03:51:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5537f392b799dbf5fa53eaaa59a5a31b SHA-1: e69b5cda7f8c57021378e72367abacb0fdd6ab15 SHA-256: bd467e481c8ce20f0e80ca9d8f365d8f93e3ae0a833f9a549233a83035a49d69
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/strik?utm_term=gamesir+t1d+controller+user+manual PDF link annotation
    • https://bukenazupe.weebly.com/uploads/1/3/4/5/134584610/razakulizi.pdfIn PDF document text
    • http://idealica-italiaoficial.site/hexion_inc_locationsgfi77.pdfIn PDF document text
    • https://basedupapopulow.weebly.com/uploads/1/3/4/3/134344364/wupadeja_xupuxamofaxo_zofapum.pdfIn PDF document text
    • http://newuwedeza.mypressonline.com/how_to_acrylic_paint_galaxy.pdfIn PDF document text
    • http://indir-kazan.com/parafisopowozawibuzade67la.pdfIn PDF document text
    • http://zewojapu.22web.org/form_meaning_in_bengali.pdfIn PDF document text
    • https://fijuvosezo.weebly.com/uploads/1/3/4/0/134096395/b8eb9e262.pdfIn PDF document text
    • http://proflist-kursk.ru/whispering_woods_golf_course_nce6pxs.pdfIn PDF document text
    • http://soguged.22web.org/63576824237.pdfIn PDF document text
    • http://fukuzowi.sportsontheweb.net/12908151609.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gudukupir/26306894720.pdfIn PDF document text
    • http://nabenejajoko.myartsonline.com/brinkley_ap_us_history_textbook.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/airtel_upload_and_speed.pdfIn PDF document text
    • http://fujifumava.epizy.com/85981311992.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/tovedotubipetaxe.pdfIn PDF document text
    • http://punonawu.rf.gd/87761231860.pdfIn PDF document text
    • http://mudanogepiw.epizy.com/how_long_do_briggs_and_stratton_engines_last.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/43175634616.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB26 5168 bytes
SHA-256: 2c6be91a54f47741353ef03a4b837dcedd45f3553ff0d7a2db0a325edc6b8523
font_01_sfnt_off0000fca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA8 11812 bytes
SHA-256: 2f92ed88e9381ecccb597b3b9b32cd3af2012ace9089bb78380f4bc5ed0eb938