Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ab57a77d0ece05f…

MALICIOUS

PDF

107.1 KB Created: 2021-02-23 06:03:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a8ae61c224939347dd8048c3d59d72ff SHA-1: 80c58850cb34fee7344d72e0fd5d65ead9e997b0 SHA-256: 5ab57a77d0ece05fce6df56e1e213f7e397c3a6ca02f56fd326de56e45dcd2c5
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://maypoin.ru/wb?keyword=necromunda%20underhive%20wars%20patch%20xbox%20one PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393893/normal_6012ec911d773.pdfIn PDF document text
    • https://cdn.sqhk.co/rufebumu/Fgghcic/steamship_authority_reservations_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/lugizumevemu/ijJImjj/2882168758.pdfIn PDF document text
    • https://cdn.sqhk.co/wezufunin/hjbiggd/65136367244.pdfIn PDF document text
    • https://cdn.sqhk.co/nulogoxeja/5VIhaie/konufozo.pdfIn PDF document text
    • https://cdn.sqhk.co/kipezipilojo/ibUjfgd/94997663580.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415309/normal_5fc5d26b8fb05.pdfIn PDF document text
    • https://cdn.sqhk.co/joxomawezu/chdFjhW/ice_hockey_wallpaper_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/K87jh4Z/wasidezalaloxavobakep.pdfIn PDF document text
    • https:///\/store.steampowered.com\/newshub\/app\/566440\/view\/2882824752342789571]ourIn PDF document text
    • https://\/store.steampowered.comIn PDF document text
    • https:////i.imgur.com\/t1fR9tr.gif[\/img][h1]WELCOME[\/h1]GreetingsIn PDF document text
    • https:////forums.focus-home.com\/category\/338\/necromunda-technical-feedback]FocusIn PDF document text
    • https:///\/steamcommunity.com\/app\/566440\/discussions\/1\/294249490917673In PDF document text
    • https://\/www.youtube.com\/watch?v=c5Yn5PaC4FoTakeIn PDF document text
    • https:///\/store.steampowered.com\/newshub\/app\/566440\/view\/2899711430019273145]ourIn PDF document text
    • https://\/discord.com\/invite\/RtmuZjH]officialIn PDF document text
    • https:///\/steamcommunity.com\/app\/566440\/discussions\/1\/2942494909176672545\/]knownIn PDF document text
    • https:///\/steamcommunity.com\/app\/566440\/discussions\/1\/2942494909176736182\/]howIn PDF document text
    • https:///\/steamcommunity.com\/app\/566440\/discussions\/1\/2942494909175627847\/]technicalIn PDF document text
    • https:///\/i.imgur.com\/6MLymvy.gif[\/img]HelloIn PDF document text
    • https:///\/www.youtube.com\/watch?v=sTvcQ0DCSh8&abNecromundaIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zazipisunuxetum.rf.gd/lamoxiwisenofeguvuben.pdfIn PDF document text
    • http://kasabapagikaki.rf.gd/skill_saw_blade_removal.pdfIn PDF document text
    • http://nadefivetokilak.rf.gd/best_acer_laptop_uk.pdfIn PDF document text
    • http://sasoregasot.epizy.com/24594800603.pdfIn PDF document text
    • http://gonoluripep.rf.gd/how_to_setup_a_moultrie_m_series_game_camera.pdfIn PDF document text
    • http://zilazop.rf.gd/71921498034.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_off000161ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x161AB 5612 bytes
SHA-256: 4c98dbcd7dd548d1377f3be761d74ca01c94af14504c6ad4d46c7d88a61a86cd
font_01_sfnt_off000174a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x174A3 13280 bytes
SHA-256: 7308212cc1e431897877f0ece9d88e3677518e8653224fb5fe7ac5d1e3fd4593

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