Malicious PDF — malware analysis report

Static analysis result for SHA-256 1039f6b7695cb62b…

MALICIOUS

PDF

40.7 KB Created: 2021-06-01 08:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: adc7edd7c6b404965f6d26af0772ff11 SHA-1: 4e19095bec2517649b895a1a2ab261aebeb2745c SHA-256: 1039f6b7695cb62bfbeb6a58b1f00179b7be29ec67d13e5523935616dde8cc36
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains a single image and minimal text, typical of a screenshot designed to conceal an actionable element. The embedded URL, https://synerhu.ru/pbw?utm_term=what+is+the+theme+of+thank+you+ma%2527am, is likely the destination for this lure, aiming to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7203

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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
  • 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://synerhu.ru/pbw?utm_term=what+is+the+theme+of+thank+you+ma%2527am
    • https://cdn-cms.f-static.net/uploads/4416332/normal_6069700e14e19.pdf
    • https://cdn-cms.f-static.net/uploads/4386095/normal_6017c3dc49555.pdf
    • https://cdn-cms.f-static.net/uploads/4381547/normal_606b64f966847.pdf
    • https://cdn-cms.f-static.net/uploads/4481663/normal_605d911f2e21d.pdf
    • http://bofamawetodo.pbworks.com/f/ballaststoffarme_lebensmittel_liste.pdf
    • https://uploads.strikinglycdn.com/files/b699f855-3cdb-4cde-b061-46a9fa7fb731/que_representan_las_lineas_horizontales_y_verticales_en_los_mapas.pdf
    • http://jijagenaneke.pbworks.com/f/dodirobuvi.pdf
    • http://mefijunov.pbworks.com/w/file/fetch/144416883/music_notation_ks2_worksheet.pdf
    • http://sorawako.pbworks.com/w/file/fetch/144446892/is_driving_written_test_hard.pdf
    • http://finebov.pbworks.com/w/file/fetch/144445839/king_kong_full_movie_hindi_dubbed_download_filmyzilla.pdf
    • http://supatibu.pbworks.com/w/file/fetch/144429108/how_much_do_husky_puppies_cost_with_papers.pdf
    • http://bepisoxu.pbworks.com/w/file/fetch/144437187/13576861852.pdf
    • http://kukepofarit.pbworks.com/w/file/fetch/144446430/dopok.pdf
    • https://uploads.strikinglycdn.com/files/f16e0c52-ce53-4988-90f1-48fbe6a19cfb/microsoft_project_professional_2016_32_bit_download.pdf
    • http://feteselulo.pbworks.com/w/file/fetch/144442440/pirifojelofifozas.pdf
    • http://poforezufovu.pbworks.com/w/file/fetch/144431568/case_in_point_complete_case_interview_preparation.pdf
    • http://zikupuzajix.pbworks.com/f/mason_dixon_volleyball_tournament_2020.pdf
    • https://uploads.strikinglycdn.com/files/e3f70942-4410-4c8b-8ec3-1a20c7207df7/28041509805.pdf
    • https://uploads.strikinglycdn.com/files/f522a42a-d46d-4f77-93c6-266834b975c4/23893967340.pdf
    • http://godekazonigi.pbworks.com/f/dilanda_download_mp3_music_for_free.pdf
    • http://gazumadu.pbworks.com/f/can_i_change_the_pressure_on_my_cpap_machine.pdf
    • http://tubekikewabi.pbworks.com/f/english_to_hindi_dictionary_free_download_full_version.pdf
    • http://dibesusajob.pbworks.com/f/ho

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