Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f1e8cdda2358ad…

MALICIOUS

PDF

67.4 KB Created: 2021-02-22 23:38:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 784c3d28ea2b4e81536db922da838a2e SHA-1: b17d16210e6f6a4a4306ff1e99713e57db6d1195 SHA-256: 29f1e8cdda2358adc6fc6c455fc02c1481936b9d83df7f2596342971eb0948fe
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wix?keyword=joker+google+docs+english PDF link annotation
    • https://cdn.sqhk.co/feripamapuv/YgcDOQs/my_little_pony_celebration_cake.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374953/normal_5ffce4dc17176.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/gj6hijd/slide_away_meaning_oasis.pdfIn PDF document text
    • https://cdn.sqhk.co/kigowabalo/Qidbkhd/tugunopijefuvujujowilijiw.pdfIn PDF document text
    • https://cdn.sqhk.co/lexoxuxoluvi/haqxhjb/sky_whales_game_shakers.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/ihhcbZH/kiloblocks_lite_how_to_save.pdfIn PDF document text
    • https://cdn.sqhk.co/zekafomaze/cghQNmB/difovozoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480748/normal_600c57d048112.pdfIn PDF document text
    • https://cdn.sqhk.co/kejofuvata/Oha7gfj/survival_game_thirst_hunger.pdfIn PDF document text
    • https://cdn.sqhk.co/nusuguponu/Qeuhgzd/funny_animal_memes_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/loxexafetivu/w1hfggL/french_costume_jewellery_makers_marks.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460694/normal_5fc8de84befa0.pdfIn PDF document text
    • https://cdn.sqhk.co/pivifilogopa/3hdihij/mysql_change_event_schedule.pdfIn PDF document text
    • https://cdn.sqhk.co/sozedikepasu/jfcbhev/44293792538.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wojixefem.epizy.com/wofop.pdfIn PDF document text
    • http://karapazixegipi.epizy.com/diffraction_grating_and_emission_spectra_lab_report.pdfIn PDF document text
    • http://dudipoza.rf.gd/tenewibofekawoda.pdfIn PDF document text
    • http://pifazudiso.rf.gd/killer_queen_piano_sheet_music_musescore.pdfIn PDF document text
    • http://petizitopebil.epizy.com/zovaguzetos.pdfIn PDF document text
    • http://bexiguxiluk.epizy.com/asalem_gurthukuradhu_chitra_song.pdfIn PDF document text
    • http://kosuvoz.epizy.com/alveoli_adjective_form.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_off0000cd4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD4E 5044 bytes
SHA-256: 5c7e91c4f2f75aa84ab9599ba90473c16bf3a5dc7c0fdb3caddf50caecf8833a
font_01_sfnt_off0000de70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE70 9972 bytes
SHA-256: c3622f425e24d4538a21c438d0d6aa7e1b26c42925b521198703b6e11a26c24b

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