Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3b902a508773e61…

MALICIOUS

PDF

74.1 KB Created: 2021-03-03 04:13:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0fd96a808fed35a487c653882537e892 SHA-1: c3f99c0200bacbe26f1f90e9af28d222e85d77e8 SHA-256: c3b902a508773e61bd5e959e3f1a65ef743130c011cca68f489c32fa3050a5e0
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://jacksth.ru/award?keyword=go+go+elite+traveler+service+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4462985/normal_5fe07105550ef.pdfIn PDF document text
    • https://cdn.sqhk.co/jobubexivex/ijgiijd/15981306749.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/ZichaZE/11897021321.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410702/normal_5fd2188c2b06c.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/jevomemulofezepixoxoroj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488822/normal_5feb6d79742dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447108/normal_5fd9adea3a3fd.pdfIn PDF document text
    • http://ludirobus.getenjoyment.net/is_the_burris_eliminator_3_worth_it.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407087/normal_6017340253227.pdfIn PDF document text
    • http://mojadejazisapa.sportsontheweb.net/jorokebuwafav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409394/normal_603ea78bd03a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465396/normal_5fe76336de351.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://siniligavaxuvul.onlinewebshop.net/peace_offering_ideas.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/12970277139.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/electrolux_vacuum_repair_shop_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/socialismo_vs_comunismo.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/48088460413.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/cydia_app_store.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_off0000e650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE650 5212 bytes
SHA-256: 7ff5cdf0654ea649cbab4e30dcd80c497fe6e8363a20adf05e82d9e4c81c440f
font_01_sfnt_off0000f802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF802 10268 bytes
SHA-256: bfbb0fb517b28638b73545e99ad73c8344ac4b4413297fcf84ce66df45dc94c0

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