Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc6e7943af45a307…

MALICIOUS

PDF

66.9 KB Created: 2021-02-22 02:40:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8ec8f728c0c41e9a9370c431236aa62e SHA-1: 69ff9dc973b946396be11854b63ca1bb19eb7da3 SHA-256: cc6e7943af45a3078f0fb8fa29d8c8a10daff880e2eba249b984dde512e120b6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://baarspo.ru/wix?keyword=electromagnetic+spectrum+webquest+pdf+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385413/normal_600b6eefafc4a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473049/normal_5ff26bde8a742.pdfIn PDF document text
    • http://vwwv-avito.online/nikusuwofogoofruu.pdfIn PDF document text
    • http://gratoraama.space/95329523703fj7lu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382194/normal_5fd27dbfb011c.pdfIn PDF document text
    • http://kigurumi.org/19183146686h5st0.pdfIn PDF document text
    • https://cdn.sqhk.co/jopubelo/hbialwG/download_galaxy_wars_squadron_mod_apk.pdfIn PDF document text
    • http://mysteps.online/gekubovurozabezapemes8axw1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468554/normal_6023e7983cc53.pdfIn PDF document text
    • http://creditscoreusa.info/ntr_songs_djxyz5l.pdfIn PDF document text
    • https://cdn.sqhk.co/waladoved/jbqibgc/vupedipidivulo.pdfIn PDF document text
    • https://cdn.sqhk.co/jidelugob/dQDihhb/27626812669.pdfIn PDF document text
    • http://zelopaqq.xyz/proje_kapaklar_indirvafkc.pdfIn PDF document text
    • http://rastet-malysh.ru/nijawufubepuf83xo.pdfIn PDF document text
    • https://cdn.sqhk.co/xajegakagiz/aQHgcGV/tokofa.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/tenunud/feliz_navidad_violin_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/66400218240.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_off0000c676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC676 5788 bytes
SHA-256: b50bb87573e45b9f215331cadbd9ebfce85e93bf94d4219c03e6a5d740435e47
font_01_sfnt_off0000da1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1C 10012 bytes
SHA-256: 604a21941b835b73abc4ed75d9936c79f65dd9bf06d2299c95ce66160d73f4f4