Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c02ae65ddcce7a…

MALICIOUS

PDF

143.0 KB Created: 2021-04-02 11:54:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 8eb9e83f5f2caecd33adf0aeb78cc3f7 SHA-1: b232c12da7dc01ca0a5e05c5c9283bf9bc5ea06a SHA-256: f0c02ae65ddcce7a99e51ad113af191d63fece0899a61a7a3043e4b0c80c9ddc
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or trojan distribution. The document body, though truncated, contains metadata suggesting it was generated by wkhtmltopdf, and the primary URL appears to be a lure for a specific search query.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9559

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
  • 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://xajibur.ru/award?keyword=buku+biologi+sma+kelas+x+erlangga+pdf PDF link annotation
    • http://zujewap.mygamesonline.org/sbi_atm_card_request_form.pdfIn PDF document text
    • http://gezakiribonenin.mywebcommunity.org/affinity_photo_workbook_german.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/rubrik_penilaian_writing_descriptive_text.pdfIn PDF document text
    • http://lagujegivupani.22web.org/general_partnership_agreement_sample.pdfIn PDF document text
    • http://miribut.mywebcommunity.org/personal_budget_template.pdfIn PDF document text
    • http://gobegoxox.22web.org/an_occurrence_at_owl_creek_bridge_questions_and_answers.pdfIn PDF document text
    • http://vetebozo.mypressonline.com/83077058422.pdfIn PDF document text
    • http://pekamidakoj.atwebpages.com/ralixalizakidukito.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3968a1b8-9248-4dec-b659-5af304a4a07a/left_behind_lyrics_cg5.pdfIn PDF document text
    • https://655b5f2c-2f45-4411-b579-7e5bd587bf3d.filesusr.com/ugd/2a272b_66afcb4664c24774991bb97f067f2bbc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4816f292-08d2-477e-a34d-a252c1413c46/jukevabumavutoze.pdfIn PDF document text
    • http://pikugire.epizy.com/58868608819.pdfIn PDF document text
    • http://furipurisebete.onlinewebshop.net/tavefikomux.pdfIn PDF document text
    • https://09d56968-2ae9-412d-ad86-e67dc63a1c23.filesusr.com/ugd/e8b91f_0f06f2ed72e249eaa8815b567b4e2aa2.pdf?index=trueIn PDF document text
    • http://ligiwekuxote.myartsonline.com/88858001883.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48b71f47-7b59-45aa-b82d-0f4389c1b70d/1392115929.pdfIn PDF document text
    • http://gojexigubobe.epizy.com/riesgo_psicosocial_formas_de_prevencion.pdfIn PDF document text
    • http://bixozebaxikapos.atwebpages.com/zotumuvir.pdfIn PDF document text
    • https://33b7cf8b-1cb2-46d9-9063-17e97cba5e80.filesusr.com/ugd/9edd50_ae27860862cc444c8f3ef36d6c7e40ff.pdf?index=trueIn PDF document text
    • http://misanedajog.myartsonline.com/apprendre_le_franais_vocabulaire.pdfIn PDF document text
    • https://2b08c346-38d8-4763-b559-bb9d4fff2313.filesusr.com/ugd/40c9d6_148f3aacc14c40b492f1a0c308196283.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/425ed5bf-7c26-4d7c-a242-e43b23a6be6b/96593398031.pdfIn PDF document text

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