Malicious PDF — malware analysis report

Static analysis result for SHA-256 d68818c8b8b58893…

MALICIOUS

PDF

81.4 KB Created: 2021-03-28 06:09:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99a1a2a533a310a88e4e1b251ccfc69e SHA-1: 239c0207343c9a27e141e8cf05755466d29e407e SHA-256: d68818c8b8b5889336bcdc2857f9b0ab9fa6607eb1f7169d6f028e09b56cb490
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, 'dugedepap.ru', which is likely part of a phishing or malware distribution scheme. The PDF structure and embedded content suggest it's designed to trick users into visiting this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/strik?utm_term=the+yard+birds+band+members
    • https://cdn.sqhk.co/mitugejaxel/hieXUIq/foundr_magazine_instagram.pdf
    • http://faxixovojaja.sportsontheweb.net/aptitude_exam.pdf
    • https://cdn.sqhk.co/movumatoz/1entyhd/xazitodak.pdf
    • http://sefesojobibif.iblogger.org/tadinexuwiriremobaf.pdf
    • http://mazovun.iblogger.org/discourteous_crossword_answer.pdf
    • http://gakagebir.mypressonline.com/anatomy_and_physiology_colouring_book_for_nurses.pdf
    • http://geguxejap.22web.org/19579729716.pdf
    • https://cdn.sqhk.co/baxoladipezu/jdbEw0P/serig.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://599b09cd-7b6a-4758-94a3-08a08d316165.filesusr.com/ugd/628a76_2f47d1efea6a4263bf91ae9d1257fc25.pdf?index=true
    • http://susabumo.atwebpages.com/klaviernoten_barfu_am_klavier_kostenlos.pdf
    • https://s3.amazonaws.com/pobixedele/app_store_connect_to_wifi_to.pdf
    • http://rolaxaja.rf.gd/espn_nfl_injury_report_week_11.pdf
    • https://cff07a16-13b2-455b-8a78-148a75b158b4.filesusr.com/ugd/cda0c7_4866145414754d40af4b3386d2766119.pdf?index=true
    • http://xoxekojut.onlinewebshop.net/sebovi.pdf
    • https://s3.amazonaws.com/xamibebulosaxug/bautismo_en_el_espiritu_santo.pdf
    • https://8c285b57-3156-47ce-881b-df665acc117b.filesusr.com/ugd/8d46c2_a0c2bf9ada2243c09b27de3aad9faac4.pdf?index=true
    • http://pimokizogo.epizy.com/hedonic_test_sensory_evaluation.pdf
    • https://s3.amazonaws.com/pogolo/74504831875.pdf
    • https://4123e755-5e7e-4fb8-b167-49ba90d37259.filesusr.com/ugd/fd3290_c019e5a3122645db91b28517d31c69ab.pdf?index=true
    • https://e942959e-95af-4115-ab05-a6e38533eaad.filesusr.com/ugd/66f7a0_f3a377593c044367bac0195c87d8fb9f.pdf?index=true
    • 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_off0000febd.bin
2fce24627074a69d100f3e8d8335934a8cb568869cb24bbe8f3e5ac4096bcb36
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBD 5224 bytes
font_01_sfnt_off00011059.bin
32d902356f559e0a04fed985a3681abb032325dd4264f30cef06a76e1e51f3b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x11059 11384 bytes