Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f6b99c908f4af79…

MALICIOUS

PDF

72.6 KB Created: 2021-02-27 22:05:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: faec831eab8eeae74271b4d50f54987b SHA-1: d8c9512660703e2d199ba767597762b5112b2208 SHA-256: 4f6b99c908f4af7945965597ea82db357a369d3a061223aa4eeefb60cec07062
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://xajibur.ru/award?keyword=descriptive+words+for+trees PDF link annotation
    • http://bit-ipo.ru/zazubapimofaxe78mii.pdfIn PDF document text
    • http://tricitysikhs.com/mojuzavavoak8wp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372080/normal_601c952a95901.pdfIn PDF document text
    • https://zudasejavezumuj.weebly.com/uploads/1/3/4/0/134017640/vuxenu_pixudoxuno.pdfIn PDF document text
    • http://excschool.ru/1991_champion_bass_boat_owners_manualdx385.pdfIn PDF document text
    • http://katermore.ru/28325125809sdx4v.pdfIn PDF document text
    • http://nesejanemik.22web.org/gakarunawozizitix.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406497/normal_5ffbb0f5f221c.pdfIn PDF document text
    • http://didanak.22web.org/tixisawavo.pdfIn PDF document text
    • http://genusttwsr.fun/fashion_nova_curve_formal_dressesne4sv.pdfIn PDF document text
    • http://turosofatilez.iblogger.org/o_semeador_de_ideias_augusto_cury.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420610/normal_5fced394a40ae.pdfIn PDF document text
    • http://sfr-webmail.com/vebozira29s5l.pdfIn PDF document text
    • http://naturaitalia.space/44114598016fo5ix.pdfIn PDF document text
    • http://mepuner.iblogger.org/suits_tv_show_wiki_episode_guide.pdfIn PDF document text
    • http://heliusdesign.ru/coach_k_basketball_quotesgbmoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sukokovevaz.atwebpages.com/polk_audio_magnifi_max_sr_soundbar_system_review.pdfIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/perfume_the_story_of_a_murderer_netflix_country.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/fossil_q_explorist_hr_gen_4_charger.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_off0000e27a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27A 5060 bytes
SHA-256: 30eebb45c450d5fcf4de4890d7ff318c99091b2d89e19a056289ea07edd85c9a
font_01_sfnt_off0000f3e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E1 9796 bytes
SHA-256: edb9c0ebd129dd66bb3ec06cc4e049da9ce78f57526e4050c5db1faa248586d1