Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d3decdc268e8bf8…

MALICIOUS

PDF

68.3 KB Created: 2021-02-15 14:45:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ea21b2c99e2883576886344c6a251a7c SHA-1: 3efcdfb33da97e879b0780c0c155def6b62540d3 SHA-256: 8d3decdc268e8bf83610fa5cc8ecc52a73ca7d3b289a53e41a3fba14c6f53a70
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://maypoin.ru/wix?keyword=porter+cable+18v+battery+charger+walmart PDF link annotation
    • https://bakubirusi.weebly.com/uploads/1/3/4/6/134680497/ce2fae78.pdfIn PDF document text
    • http://anrostore.ru/cg_dj_song_video_mp42zahr.pdfIn PDF document text
    • http://fruit-italy.space/winters_bone_movie_trailerno73j.pdfIn PDF document text
    • https://tinubuwetoka.weebly.com/uploads/1/3/5/3/135325034/nipuzegexenevi_wasadagovukobi_bixomil_leronopelat.pdfIn PDF document text
    • http://lightly.store/41658531959200n1.pdfIn PDF document text
    • http://thefortykuti.com/4911470884999y74.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465147/normal_5fc80cb43aca5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486765/normal_5fe9120495db6.pdfIn PDF document text
    • http://bluhgang.best/nuradupinefixarudefodmoiqe.pdfIn PDF document text
    • http://obzorov.site/710109615264943k.pdfIn PDF document text
    • http://storeeuro.info/java_64_bit_ziptiypn.pdfIn PDF document text
    • https://dapavivilo.weebly.com/uploads/1/3/4/8/134895477/tapebefewazarep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447253/normal_60197850180db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407102/normal_60066cab3a7c8.pdfIn PDF document text
    • http://br1.red/35485299116ybdji.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/nonabafat/pimoro.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/climate_change_report_november_23_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/28434401084.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_off0000cb67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB67 5676 bytes
SHA-256: 0874de376ddf63d601036fc108331028218eb97b0d9cca7237b8206793269b44
font_01_sfnt_off0000deac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAC 10880 bytes
SHA-256: 22002ed77412c9ea6f25979f9e011c5e697074c68283b9cb5b398a1ffdad8dd2