Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c5ba4aa710a5e2c…

MALICIOUS

PDF

73.0 KB Created: 2021-02-13 01:39:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 16a2e46c78bb4c55aa8a0a005ac5eca9 SHA-1: 8ad785f2a641ff056b36a4ffbcf8a19bbf4d31b2 SHA-256: 3c5ba4aa710a5e2c9c9467e6f66249b5cdf780e6adfc6a8ea03d55bf6e0cf862
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://druttle.ru/wix?keyword=it+chapter+2+dvd+release+date+nz PDF link annotation
    • https://cdn.sqhk.co/zujubiviv/jdjgtjb/dinatatizu.pdfIn PDF document text
    • http://lady-bug.club/libros_de_astrologiaocd7l.pdfIn PDF document text
    • http://detonic-romania.website/99675884760tdi83.pdfIn PDF document text
    • https://cdn.sqhk.co/podidiwi/ihgGhcC/colour_fill_3d_game_download.pdfIn PDF document text
    • http://reestr.site/puvunazovariruvuzisimuk47te.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427795/normal_5fff9ca140264.pdfIn PDF document text
    • http://everydays.space/electronic_music_for_studying_mp3_download08ow7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372080/normal_601c95f7dfd6f.pdfIn PDF document text
    • http://milano-moda.space/flow_cytometric_immunophenotyping_fouftru.pdfIn PDF document text
    • https://cdn.sqhk.co/sunalikefazo/gcY5OAU/youtooz_dream_and_george.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/idshg07/buferovisugesi.pdfIn PDF document text
    • https://cdn.sqhk.co/bumogebiz/9Mgf0hb/game_of_thrones_s01e02_the_kingsroad_arabic_subtitles.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375885/normal_5fc8a30bb528e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/savukojubusum/30558727403.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d38a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD38A 4968 bytes
SHA-256: 85131188a7f6ca1b1c813752c9623aed2d540a4748ed90ec1922755ff1ee1d67
font_01_sfnt_off0000e46b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE46B 10308 bytes
SHA-256: fad455b75059a6392a3e48ae112fbe511760d90ba146c4aef991b697ccfc1e51
font_02_sfnt_off000107ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107AC 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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