Malicious PDF — malware analysis report

Static analysis result for SHA-256 276aa22624717609…

MALICIOUS

PDF

70.5 KB Created: 2021-03-02 12:10:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 862c3ed2819ea4e9a006a7bb8a6ebf59 SHA-1: 71b55923d19b4ed12a3c327e6d043d01993d5da9 SHA-256: 276aa22624717609617c9882380ccefae2c04dc997b4baf7854bdffa78a59fe5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://pelibifir.ru/award?keyword=cat+in+the+hat+babysitter+scene PDF link annotation
    • http://fafikup.scienceontheweb.net/dell_latitude_e6510_battery_light_flashing_orange.pdfIn PDF document text
    • https://fubexomufepa.weebly.com/uploads/1/3/4/8/134850999/nijuwixepuzikaduf.pdfIn PDF document text
    • http://fusobilel.iblogger.org/ps_vita_emulator_android_roms.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzojivemepe/bjig9nk/island_in_the_sun_chords_harry_belafonte.pdfIn PDF document text
    • https://cdn.sqhk.co/nabixisaf/Ujfjege/98819165471.pdfIn PDF document text
    • http://lazategomid.scienceontheweb.net/63851121050.pdfIn PDF document text
    • https://kivenawuvu.weebly.com/uploads/1/3/1/1/131163776/ab5db618107.pdfIn PDF document text
    • https://cdn.sqhk.co/jabisopomuxo/eiijhbi/rc_drone_flight_simulator_3d_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/bofozuto/yhbIhhy/sky_roller_game.pdfIn PDF document text
    • https://cdn.sqhk.co/zarepowake/UjhjjYu/modern_strike_online_pvp_fps_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/L0hegeI/uci_mtb_world_championships_2019.pdfIn PDF document text
    • http://jepenufi.getenjoyment.net/dnd_5e_best_campaigns_for_beginners.pdfIn PDF document text
    • https://cdn.sqhk.co/zupodejadofe/Zcjegjb/applock_application_which_country.pdfIn PDF document text
    • https://cdn.sqhk.co/bomenojosa/yiehjBl/17838053073.pdfIn PDF document text
    • https://pitatulepuz.weebly.com/uploads/1/3/2/3/132303378/gabagiwex.pdfIn PDF document text
    • https://mokizafot.weebly.com/uploads/1/3/5/3/135347773/7966143.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/jhghjLG/superhero_city_game_mod_apk.pdfIn PDF document text
    • https://tomosuboma.weebly.com/uploads/1/3/5/3/135382902/6205818.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/nijosinizo/romeo_and_juliet_act_1_scene_2_capulet_analysis.pdfIn PDF document text
    • http://rofamotitasijud.rf.gd/rifusasoxubokesuse.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/luxorivevupaman.pdfIn PDF document text
    • http://fojufofe.rf.gd/39938927647.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_off0000d98c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98C 5004 bytes
SHA-256: 2a7bf477e076e5b80b7e53cce8af2a3018aa4f0e15d297e926d6218cbc23ca36
font_01_sfnt_off0000ea8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8A 10028 bytes
SHA-256: 0105aa85e0447c8151b60d01168179f177e464d47723bbb39a3dabba4c123018

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