Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be342583108f4c5…

MALICIOUS

PDF

70.6 KB Created: 2021-02-18 12:38:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6e82e3262d0e2e22ebd9b2693a79ce23 SHA-1: f3a05cdc7a990ab622700c1575070d34b0fbcec4 SHA-256: 0be342583108f4c5e827d800e6969f118159b09460f5606f83cb6f18b93c0ec0
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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://seumenha.ru/wix?keyword=physics+study+guide+pdf+grade+12 PDF link annotation
    • http://toportt.online/ratojorezegevomed1q406.pdfIn PDF document text
    • http://fixmarker.fun/how_to_learn_mandarin_language_for_freehresg.pdfIn PDF document text
    • http://gramnews.xyz/balance_sheet_request_letterdns13.pdfIn PDF document text
    • http://fruit-citrus.space/430573885522yzrc.pdfIn PDF document text
    • https://gozerezujokosas.weebly.com/uploads/1/3/4/8/134856803/julafixep_zaret_zutaxezitemobed.pdfIn PDF document text
    • http://dfwshootersupply.com/15565777495dlpq1.pdfIn PDF document text
    • http://flymoney.net/carolina_reaper_chilli_pepper_seeds3x25t.pdfIn PDF document text
    • http://1freedom.space/zifezizawazojedol0mcr.pdfIn PDF document text
    • https://toredakiwireg.weebly.com/uploads/1/3/0/7/130739366/c517c94a7.pdfIn PDF document text
    • http://bopigupuwag.iblogger.org/4639538761.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/vavabi/16544879852.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/21339996196.pdfIn PDF document text
    • http://lesasesodimavun.epizy.com/32142317664.pdfIn PDF document text
    • http://lokimutopilar.epizy.com/sejiliwupedilita.pdfIn PDF document text
    • http://poravilotizeve.epizy.com/35516588895.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/61205376464.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_off0000d7bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BF 5672 bytes
SHA-256: bc70754c82db75932af763b1fcdc08c0892dd6206fe99edc243ec11871e8e1f7
font_01_sfnt_off0000eb17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB17 10096 bytes
SHA-256: e73660b0a8c5ab5e5954902976e7722040f5949d6a8707705f27f893b700b426