Malicious PDF — malware analysis report

Static analysis result for SHA-256 f477151135479a17…

MALICIOUS

PDF

49.0 KB Created: 2021-03-09 23:53:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4d303e375a605628ab6d14badb16d4bb SHA-1: 9f2e8abc2315a096360ef0adde3761d560db1639 SHA-256: f477151135479a17e898df3213a3e2c1ac3bfe7d5d56b1d8d954169e29ee6205
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7656

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://botokaw.ru/award?keyword=boschveld+chickens+in+zimbabwe+pdf PDF link annotation
    • http://vuvajujuli.mygamesonline.org/88702979043.pdfIn PDF document text
    • http://mebelrostov.ru/how_often_to_change_oil_in_honda_civic_2012n610u.pdfIn PDF document text
    • http://hristogrigorov.com/bmw_diagnose_software_rheingoldf4zp7.pdfIn PDF document text
    • http://healthit.space/helm_template_loopsjo9u.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/46667526703e430y.pdfIn PDF document text
    • http://cardioactiveitalia.site/15380983486tz156.pdfIn PDF document text
    • http://afracheat3.xyz/10033365564rd31p.pdfIn PDF document text
    • http://cheapkeys.site/13742071311fxaes.pdfIn PDF document text
    • http://lnstagramsupportinfo.com/12582800363n76vf.pdfIn PDF document text
    • http://copriyghtconfirmed.com/cuckoo_sandbox_book2heqf.pdfIn PDF document text
    • http://sifisomatexow.sportsontheweb.net/what_are_the_10_naeyc_standards.pdfIn PDF document text
    • http://3203epworthcres.com/chep_guidelines_renal_artery_stenosisqe4yc.pdfIn PDF document text
    • http://digitalmicroteter.xyz/sap_inbound_delivery_serial_number_tablevrdd3.pdfIn PDF document text
    • http://xawowonulop.22web.org/achilles_tendon_rupture_treatment.pdfIn PDF document text
    • https://31c8a3d4-0132-49f1-a04f-09c79d03e01f.filesusr.com/ugd/a4da84_b3986d2167584fe09684359202e32fc1.pdf?index=trueIn PDF document text
    • http://vomifavub.epizy.com/the_vault_last_wish_destiny_2.pdfIn PDF document text
    • https://45ae50e1-98a8-4501-9ad6-fc0df438eb43.filesusr.com/ugd/b16523_8a286f564cb0431dba61a7d48fb2e187.pdf?index=trueIn PDF document text
    • http://lizijor.rf.gd/juzijepixexawubev.pdfIn PDF document text
    • http://berifukozek.rf.gd/12081313413.pdfIn PDF document text
    • http://liroporuki.myartsonline.com/32910344693.pdfIn PDF document text
    • https://f6180879-d31b-499c-8e42-fead7842c491.filesusr.com/ugd/007227_f7499cfe966c4c7fbb11a7f1229fd371.pdf?index=trueIn PDF document text

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