Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e9616ad6622a4b…

MALICIOUS

PDF

69.5 KB Created: 2021-02-10 19:07:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e24b0240f64252e6e57dd092124c62a0 SHA-1: b6f3809a1cad595f1c248de1f9ae0116d85533fd SHA-256: b7e9616ad6622a4b4f7c86f9a9c1f1e4d33fe84bcab8e4022cdd0d0b0dfb0630
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://baarspo.ru/123?utm_term=mosaicos+6th+edition+pdf PDF link annotation
    • http://tehnikator.ru/airplane_cast_sick_girl_momdybmv.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/MveTieV/pabajafugide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388282/normal_600ee5fed188a.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/sijHXLF/resakuxa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382784/normal_6018bdf85ec6f.pdfIn PDF document text
    • http://fasibada.22web.org/strength_training_workout_log_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418579/normal_5febaa7828e3f.pdfIn PDF document text
    • http://interbank.link/bhojpuri_dj_song_new_2019_mp4lwq7m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385415/normal_6004fee0a610a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405904/normal_5ff8fb2a441cd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/elite_dangerous_horizons_combat_guide.pdfIn PDF document text
    • http://poluwusafoge.epizy.com/17336304929.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/collecting_marbles_a_beginner_s_guide.pdfIn PDF document text
    • http://dafawesag.epizy.com/14560355410.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/sims_3_apocalypse_challenge_spreadsheet.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_off0000d096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD096 5276 bytes
SHA-256: 6616b521f1877065b319dd9f1b291b42852201f6aa87c785f0e70c4751ecfd0f
font_01_sfnt_off0000e291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE291 11316 bytes
SHA-256: 56e61946ba0d977615929360b6a4ca3b94fa870c009fd2b2180e963a6c69d8d2