Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02ad5718031ac38…

MALICIOUS

PDF

79.6 KB Created: 2021-03-23 16:02:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f7228ce5f4fac8a8c9411817c3625203 SHA-1: e6e9efb32899d0ec1b3cbb40780584c2e14c8aaf SHA-256: c02ad5718031ac388d9e0f18842177754b3b3295b1f856bb8ef203c73e2a6e7c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the presence of an external URI points to a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/award?keyword=catch+and+kill+ronan+farrow+pdf
    • https://cdn.sqhk.co/dijowasedop/1vvDjiE/tambourine_radio_tune_in.pdf
    • https://cdn.sqhk.co/tezesafura/SQhimgj/set_different_notification_sounds_for_different_apps_android.pdf
    • https://cdn.sqhk.co/dedikifefisu/ijpihha/tolujubin.pdf
    • https://cdn.sqhk.co/mesafovojifo/eYHSoHE/air_traffic_controller_jobs_canada.pdf
    • https://cdn.sqhk.co/zosikoto/8TjdXuI/deripusulepimap.pdf
    • http://xtrading.buzz/17992030230sluqn.pdf
    • https://cdn.sqhk.co/zobelekivix/idieUiT/graphic_design_software_for_free.pdf
    • https://cdn.sqhk.co/mofijovelu/Riibeha/nalamafemupez.pdf
    • http://cetapp.xyz/foucault_the_order_of_things_sparknoteskairu.pdf
    • http://dibiwarisogix.mygamesonline.org/ethiopian_orthodox_amharic_bible.pdf
    • http://wiboratiraveguw.mygamesonline.org/ulthera_hifu.pdf
    • http://wixosefimaba.scienceontheweb.net/94990954029.pdf
    • https://cdn.sqhk.co/lawafopugu/ibFjggc/mod_guns_minecraft_1._15_2.pdf
    • https://cdn.sqhk.co/juvanejejuwo/ieHhyii/dead_cells_map_2._0.pdf
    • http://deliwubavamir.mypressonline.com/astm_a325m_14.pdf
    • http://support-copyrighthelpservice-about.com/oxford_placement_test_listening_answersogrxa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/36671e11-562c-4eda-b65d-c89bcef00421/which_alcohol_is_not_haram_in_islam.pdf
    • https://uploads.strikinglycdn.com/files/145ce0ef-4b46-4978-a1a8-ec014e4c32d7/kesufukisoxazizanedulifub.pdf
    • https://uploads.strikinglycdn.com/files/ac4e5484-b986-48a6-a368-de6f6f2e0f1a/keurig_mini_plus.pdf
    • https://uploads.strikinglycdn.com/files/e3ac8728-7c02-4af0-9c4e-4f05912ca686/where_can_i_watch_twilight_midnight_sun_movie.pdf
    • https://uploads.strikinglycdn.com/files/c29ca6c2-172a-4859-83dc-5e330bc6ebf0/lakizovakujafomofasoxux.pdf
    • https://uploads.strikinglycdn.com/files/3a3b8890-eec0-4c52-b6da-a5b074de23cf/the_cat_in_the_hat_book_awards.pdf
    • https://uploads.strikinglycdn.com/files/4143a23a-9bff-4baf-a000-78b1f2fe1132/computer_science_bachelor_degree_requirements.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb77.bin
59311f9e73a39154756755bf295f82da4b40ed630f0c38e0a7e8192ef38caa1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB77 5124 bytes
font_01_sfnt_off00010cf0.bin
856dcfdaa6243a592ab36a79cb69d2c08490c2f6d0d802401d5ed753ba317446		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CF0 10608 bytes

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