Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5290a39fd9bee8b…

MALICIOUS

PDF

161.1 KB Created: 2021-03-18 21:33:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 66a89ad01b8722c9694edd9b4b393ca1 SHA-1: 3c4379d409a23373ec8b57c3c7ca602f3a114fd4 SHA-256: c5290a39fd9bee8b5933b4fb8cb695990ccaa64182c323c3a141d24ed1c24767
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'fokemale.ru' suggests the document is designed to redirect users to a malicious site, likely to download a secondary payload. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create PDFs from web content, further supporting the idea of a web-based lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9289

Heuristics 3

  • 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
  • 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://fokemale.ru/award?keyword=chemical+properties+of+benzoic+acid+pdf PDF link annotation
    • http://fiziwafofekaku.mygamesonline.org/wojov.pdfIn PDF document text
    • http://help-copyrighteamservice.com/ukraine_gmp_guidelines2o56u.pdfIn PDF document text
    • http://sandiego-podcasts.com/why_school_uniforms_are_important_essayen83i.pdfIn PDF document text
    • http://fuxezaboxekave.scienceontheweb.net/american_gods_libro.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/what_determines_an_ecosystem.pdfIn PDF document text
    • http://simcars.ru/rutakajar45asa.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/what_is_the_best_convection_toaster_oven_on_the_market.pdfIn PDF document text
    • http://xefopuro.mypressonline.com/detufefavonotisogi.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/subject_pronouns_spanish_worksheet_free.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/9521313650.pdfIn PDF document text
    • https://ad858f6a-7bbb-416d-9365-e04d7986ed9b.filesusr.com/ugd/3c9ac1_0c62ab2aae8e45638a99334599afd34d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/the_walking_dead_graphic_novels_online.pdfIn PDF document text
    • https://7f993087-45f6-41f4-96e5-9dcaca18fb91.filesusr.com/ugd/9a92dd_07b435212bf641c9a0225bc5f50767c3.pdf?index=trueIn PDF document text
    • http://sabiwilurase.atwebpages.com/microsoft_senior_program_manager_interview_questions.pdfIn PDF document text
    • http://fowakoleviwamop.onlinewebshop.net/jean_anouilh_becket.pdfIn PDF document text
    • https://ad858f6a-7bbb-416d-9365-e04d7986ed9b.filesusr.com/ugd/3c9ac1_83bf5d87ffd540e7a39aa791664770da.pdf?index=trueIn PDF document text
    • http://zujisofivo.onlinewebshop.net/how_to_pair_sennheiser_hdr_160.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/cultivate_what_matters_powersheets_2020.pdfIn PDF document text
    • https://ea74ff18-003d-4094-8454-8d7e15e33abb.filesusr.com/ugd/50de67_008201d84c33428ea2b5f412d6ebed05.pdf?index=trueIn PDF document text
    • http://sarutufasiko.atwebpages.com/mimowadokenuwogefojirap.pdfIn PDF document text

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