Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca66c63d8c770ad…

MALICIOUS

PDF

73.6 KB Created: 2021-02-27 02:00:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 55177331eb456c9094aaa00679652268 SHA-1: a0105b7442cd3af4bb2a46f623a33c64a319025d SHA-256: bca66c63d8c770adcb2447cc62228cfb7823b2c52c2f9501ff11b1380145141d
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://botokaw.ru/strik?utm_term=mossberg+930+review+2018 PDF link annotation
    • http://centerverifybadge.com/centurion_defence_academy_lucknow_fees5oft3.pdfIn PDF document text
    • http://thedefenseforge.com/bionicle_makuta_s_guide_to_the_universe9yxev.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445869/normal_5fee3ae68ceb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483088/normal_6009ed954742c.pdfIn PDF document text
    • https://cdn.sqhk.co/dibitarebizu/DhjcjdP/ruvibonenifir.pdfIn PDF document text
    • http://libertinemodels.com/metal_madness_pvp_car_shooter_twisted_actionn0fi7.pdfIn PDF document text
    • https://cdn.sqhk.co/lewivapawo/Vochbhg/alien_shooter_campaign_2_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zutigaku/MghR9Cm/mivepiwekibijirukuxuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454982/normal_6018a55666a4b.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/Ghddig7/love_stories_tv_snapchat.pdfIn PDF document text
    • http://show-visitor.xyz/54563597200b2lu2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366362/normal_6031bcabbab75.pdfIn PDF document text
    • http://memowelubi.mygamesonline.org/bissell_cleanview_vacuum_operating_instructions.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lujifub.epizy.com/frontline_commando_ww2_mod_apk_unlimited_money.pdfIn PDF document text
    • http://sajomapujozokux.onlinewebshop.net/58599483163.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_off0000e0f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F1 5748 bytes
SHA-256: 81b60a6be0933989010a1418c5e5b67c255cecb2250b6b1997ea748eda35e6bf
font_01_sfnt_off0000f4b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B6 10904 bytes
SHA-256: 617521db39fe70cb240371755365a1b05b44da96cd3cb3562ec9b8a5a4a3903e