Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9469265689d0b3d…

MALICIOUS

PDF

72.3 KB Created: 2021-03-01 19:24:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 164f9bd14b209f94e811c177215e2864 SHA-1: 6167af91f7734c043c65ba8ce2df8b2ba9ccb8df SHA-256: b9469265689d0b3dd65ac987e120145f8df4f056253e7aa200d59ac9c6837dc8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://mezovuduw.ru/award?keyword=skyrim+how+to+use+alchemy PDF link annotation
    • http://sipataj.sportsontheweb.net/char_broil_infrared_grill_2_burner.pdfIn PDF document text
    • https://cdn.sqhk.co/boguzivipel/BLFhjyW/best_apps_for_editing_tik_tok_videos.pdfIn PDF document text
    • https://cdn.sqhk.co/sowodopevew/idehijg/residence_inn_north_conway_check_in_time.pdfIn PDF document text
    • http://lnstagramverifiedbadgeservice.com/wii_u_console_2020dkwsk.pdfIn PDF document text
    • http://zoluwofemofuper.sportsontheweb.net/girole.pdfIn PDF document text
    • http://copyright-notice-ig.com/razixidagarimofacy.pdfIn PDF document text
    • https://xorimaki.weebly.com/uploads/1/3/0/7/130739578/jofiginegopiz.pdfIn PDF document text
    • https://cdn.sqhk.co/filovixedalu/gfI7ifU/40703730338.pdfIn PDF document text
    • https://kinurilidere.weebly.com/uploads/1/3/1/3/131379896/rarimipasibom.pdfIn PDF document text
    • https://ramageputa.weebly.com/uploads/1/3/1/6/131637054/jizowawil-paderelagomu-letogemarevutu.pdfIn PDF document text
    • https://cdn.sqhk.co/bidogefapo/hjighfV/spiritual_health_definition.pdfIn PDF document text
    • http://sizuxofutitarax.mypressonline.com/how_to_create_a_cost_comparison_chart_in_excel.pdfIn PDF document text
    • https://tadivibudup.weebly.com/uploads/1/3/4/8/134899420/6a36eeb.pdfIn PDF document text
    • https://jawuwokobot.weebly.com/uploads/1/3/1/3/131381435/6a79ba28ca853.pdfIn PDF document text
    • http://lnstagramcopyrigtservice.com/nuovo_cinema_paradiso_violinqsmpr.pdfIn PDF document text
    • http://leomannapov.com/wiperivenoyy3be.pdfIn PDF document text
    • http://mnogolidov.xyz/colnago_bike_sizing_guideo8hdn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuwedilejom.myartsonline.com/gupugipemitopum.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_off0000ded7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDED7 5400 bytes
SHA-256: ed2449e950922c98cb8514cd5e28d61a344a0e76d4c6f4ef7cd32cd883be0ebb
font_01_sfnt_off0000f11f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11F 10392 bytes
SHA-256: bee9bc1a1b0b3e7696ec778257cef10ba684049e46e0310a0e28fd7f836fdcfc

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