Malicious PDF — malware analysis report

Static analysis result for SHA-256 349ab8c86a664894…

MALICIOUS

PDF

69.6 KB Created: 2021-02-15 20:22:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 62684fa9c5d36f2aee7f415b924c1821 SHA-1: 7dd148dbec3bf7abec962b642f9988803e7846e6 SHA-256: 349ab8c86a664894bae662d08cd24d841a0573d833258bb332bb0302fd1cf4c4
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://bologen.ru/wix?keyword=minn+kota+trolling+motor+parts+canada PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405904/normal_60250a85baa3e.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/ShdjjNa/16367940453.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/gcjegky/mawesaregomoto.pdfIn PDF document text
    • http://dovulup.iblogger.org/wivevozosa.pdfIn PDF document text
    • https://cdn.sqhk.co/ragekasa/y5ujcn9/powershell_script_shortcut_run_as_administrator_greyed_out.pdfIn PDF document text
    • http://ital-girl.space/bang_bang_all_video_song_hd7h50d.pdfIn macro / runtime command snippet
    • https://cdn-cms.f-static.net/uploads/4448740/normal_5fda5e542e35b.pdfIn macro / runtime command snippet
    • https://cdn.sqhk.co/noperizapewo/hh0wyna/guide_for_voracious_worm_io_snake_zone.pdfIn PDF document text
    • http://arthromedro.xyz/kundli_program_software_freexipyz.pdfIn PDF document text
    • https://cdn.sqhk.co/kukojuvata/B3iiR3y/oceanhorn_2_switch_metacritic.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/bgeieri/82242459608.pdfIn PDF document text
    • http://weinmvc.net/effects_of_bullying_in_the_philippines76thj.pdfIn PDF document text
    • http://picsonair.com/sudivurnz6d.pdfIn PDF document text
    • https://cdn.sqhk.co/kopupelek/ajghdhf/stanley_parable_adventure_line_music_mp3.pdfIn PDF document text
    • http://cmbclientes.com/multiplication_table_9_worksheetjcle4.pdfIn PDF document text
    • https://cdn.sqhk.co/jifigetuxu/McgdLyZ/real_steel_boxing_champions_game_guardian.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dipijiz.epizy.com/17608047612.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_off0000d34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD34A 5464 bytes
SHA-256: f9a8b5333a3626435205094734c4c89f70b305714dad97d56c248dec1743634c
font_01_sfnt_off0000e5d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D7 10188 bytes
SHA-256: fae1f564e9abac3a32c142528eade193fae6aca325c0484615d19feff81e82a0

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