Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b11b295ecd233c3…

MALICIOUS

PDF

70.0 KB Created: 2021-02-28 23:23:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 50d728c7f31fd6cd4331b24554f8d231 SHA-1: ccaa796ab47e99950fb422fc2e411868d63d08c8 SHA-256: 5b11b295ecd233c36dad68b6d56b8e2f13b256c7e9d28437c006646d06904797
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://resalured.ru/award?keyword=directv+remote+control+manual+rc73 PDF link annotation
    • https://cdn.sqhk.co/dutedape/R0jfUha/border_patrol_agent_killed_wife.pdfIn PDF document text
    • http://juronesewuku.22web.org/remboursement_par_amortissement_constant_formule.pdfIn PDF document text
    • http://esportzmlevent.com/lonely_planet_cambodia_guidewcgqf.pdfIn PDF document text
    • http://arenaprobet.com/aimsun_8._2_manual66vm1.pdfIn PDF document text
    • https://cdn.sqhk.co/wenudiwome/gfpfVgf/hocus_pocus_spell_book_quotes.pdfIn PDF document text
    • https://xexewevifiwewol.weebly.com/uploads/1/3/6/0/136054804/kesamesuwisevali.pdfIn PDF document text
    • http://bas-vorota.ru/redemaxutudewijec49m5.pdfIn PDF document text
    • http://agent-ritual495.online/af_reserve_civilian_dental_form4aqkh.pdfIn PDF document text
    • http://sungo1.space/42672043778d6azz.pdfIn PDF document text
    • https://jodaxirijiv.weebly.com/uploads/1/3/0/7/130776114/8125769.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407777/normal_603a198e537eb.pdfIn PDF document text
    • http://mamontov-net.cc/nome_dos_androides_de_dragon_ball_zm0alv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445880/normal_5ffaba401c4e7.pdfIn PDF document text
    • http://uspex22.online/hp_elitedesk_800_g1_drivers_windows_server_20089m8oj.pdfIn PDF document text
    • https://texanajak.weebly.com/uploads/1/3/4/0/134018539/6aeaf3981e7d.pdfIn PDF document text
    • https://cdn.sqhk.co/busanurutar/gcthfjf/dino_land_match_3_adventure.pdfIn PDF document text
    • https://cdn.sqhk.co/jukunobegabe/eZicWib/35227415765.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446379/normal_6014da484fa1f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://femodizabofowu.epizy.com/arduino_bluetooth_android_joystick.pdfIn PDF document text
    • http://jawimazo.epizy.com/honeywell_thermostat_rth6580wf_not_working.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_off0000d699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD699 5072 bytes
SHA-256: 525e96e3c36e99ccfe9307cc7d0cec10c1c414ec081247f3afc0a7da1a89df77
font_01_sfnt_off0000e7d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D9 10152 bytes
SHA-256: 5f5aa960d2f35ee91c3ffd6672a6ba274187bfa97572803095356d021031c5a2

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