Malicious PDF — malware analysis report

Static analysis result for SHA-256 6016fa2685ac136e…

MALICIOUS

PDF

69.7 KB Created: 2021-02-10 15:20:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e2228291b4d8df6f46ad2c3569092049 SHA-1: 57980fa9654703ebf5784735e09386a2632c952e SHA-256: 6016fa2685ac136ed07f760d871c1b9e4dfc333067215aab9b1b289645e1eed3
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://leonvi.ru/123?utm_term=review+solving+quadratics+worksheet+answer+key PDF link annotation
    • https://cdn.sqhk.co/vebiziwob/f9ESifj/greek_god_of_light_and_poetry_crossword.pdfIn PDF document text
    • http://goldotzyv.ru/wuronevejizexoye7l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369505/normal_5ffc0a6e51213.pdfIn PDF document text
    • https://xamatetafuxu.weebly.com/uploads/1/3/1/6/131606968/busipaxuwolop_tibitexigal.pdfIn PDF document text
    • http://redtea.space/emulator_nintendo_switch_untuk_android8s71e.pdfIn PDF document text
    • https://cdn.sqhk.co/risenulowo/IpibVhe/like_a_boss_movie_netflix.pdfIn PDF document text
    • http://ig-soft-team.com/rolawezanulifexesuzexamuughfd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490528/normal_5ff30ebb11913.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416299/normal_5fe5b7f4d8fb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498842/normal_60104261c7e07.pdfIn PDF document text
    • http://detonic-italia.website/jafujt13d4.pdfIn PDF document text
    • https://cdn.sqhk.co/defegitip/R6ggehe/ruxijujejofuz.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/daraniwekamidir/google_spreadsheet_script_get_sheet_by_name.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/cadth_submission_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/best_video_player_android_github.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_off0000d290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD290 5652 bytes
SHA-256: c6b4ab583d4570f47449373909fed33bee74a8fd573e56372c345e861720fa4b
font_01_sfnt_off0000e5e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E6 10728 bytes
SHA-256: cfd6d609da739f9a3cf362b2d31e01bf3c25399cdbf8dd78d0e9337c2654c641