Malicious PDF — malware analysis report

Static analysis result for SHA-256 921473eb73a607fe…

MALICIOUS

PDF

72.7 KB Created: 2021-02-26 10:28:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f77f82bdb3f838d236e0feb1f0688643 SHA-1: 1a969af2587e0a30f672496dd4f7142d561b1f94 SHA-256: 921473eb73a607fec11d91741ae73358454f3be4b6c0ab38e2787cf44aadda35
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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/award?keyword=blood+bowl+2+vs+legendary+edition PDF link annotation
    • http://clebohets.xyz/95365119835aunc8.pdfIn PDF document text
    • https://cdn.sqhk.co/fapolokid/e3ghJhq/dusotizi.pdfIn PDF document text
    • http://allwoman.site/2419469059361a78.pdfIn PDF document text
    • https://cdn.sqhk.co/gukitane/fhcHigZ/92548218875.pdfIn PDF document text
    • http://trells.space/92542835534rw9v7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483331/normal_60384df311fff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464878/normal_6028ab8a828b7.pdfIn PDF document text
    • http://rollernefritmassage.xyz/jekitelakivovopitobpgxr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369168/normal_5ffc790d1ee97.pdfIn PDF document text
    • http://sitebomobegux.sportsontheweb.net/python_while_loop_list_length.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/vizio_sound_bar_power_cord_best_buy.pdfIn PDF document text
    • http://veselutut.mywebcommunity.org/how_long_does_the_padi_elearning_course_take.pdfIn PDF document text
    • http://naturalgood.space/dc_comics_meaning_in_telugu8kv81.pdfIn PDF document text
    • http://gnoogle.site/oh_saki_saki_dj_songpu1ly.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://womawujun.atwebpages.com/physics_for_scientists_and_engineers_by_giancoli_4th_edition.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/14470295784.pdfIn PDF document text
    • http://kofaxafogi.myartsonline.com/an_atlas_of_anatomy_for_artists.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_off0000df04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF04 5568 bytes
SHA-256: d7c5182907bc9f6efb0e889b71c73950139c7895a6489f4651b0a7d8cf3d07a9
font_01_sfnt_off0000f223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF223 10476 bytes
SHA-256: 524f4962ebcc581747c90c85c4ddf1ffb800923aaf4cfe2991240e29459afda1