Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f0bc1bd346f071c…

MALICIOUS

PDF

81.3 KB Created: 2021-02-11 19:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 71f47f5e62fbce177b3e99be69a26538 SHA-1: e8b9c9da1e5f1d4bb1eb6b9060c2f24ef2a598bf SHA-256: 7f0bc1bd346f071c595465c330c8cbac858a1e7546081832aa4da3f8a2d73eff
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://bologen.ru/wb?keyword=karate%20kid%20movie%20%20in%20telugu PDF link annotation
    • https://cdn.sqhk.co/fifotadog/herjjm6/49651636871.pdfIn PDF document text
    • https://cdn.sqhk.co/devisojop/PIXErij/funky_karts_steam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427529/normal_5fdf4e2fc48cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495399/normal_5fdbbe82c9c66.pdfIn PDF document text
    • http://cmbmarketing.agency/kindergarten_coloring_sheets_back_to_schoolpp7c8.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/bgfwegi/13035468974.pdfIn PDF document text
    • http://joblanc.xyz/what_is_ethnography_in_anthropologyx6paw.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/hggj0gg/vosijumivebexajupiwetarub.pdfIn PDF document text
    • https://cdn.sqhk.co/votezevon/jPhcibu/wood_stove_pipe_store_near_me.pdfIn PDF document text
    • http://svoytrylend.xyz/gulozr5ly0.pdfIn PDF document text
    • http://mnatural.space/sdg_goals_and_indicators2w0q2.pdfIn PDF document text
    • https://cdn.sqhk.co/segevenujuka/iemIhiE/ice_cream_cookie_sandwich_shop_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/tivanosox/ghujigd/20897110136.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369794/normal_6011ceaad2f79.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481065/normal_5ff9e2a30a5aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383573/normal_601a000785b3e.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/pisedij/5859377408.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/authorized_dealer_certificate_format_in_word.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_off00010278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10278 5060 bytes
SHA-256: 560af6ad6922d2db3be42920631156d34d7a485032d2b1cbb28597fdbd0b5083
font_01_sfnt_off000113a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113A0 10756 bytes
SHA-256: 1324a292ad6cbb267d1fe9ddec0b7f6c33ddedc80c002928dd71185a202233f4