Malicious PDF — malware analysis report

Static analysis result for SHA-256 f242e97c5322e0fc…

MALICIOUS

PDF

48.5 KB Created: 2021-02-28 04:09:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 12d12517232d706ab196716a803eaf45 SHA-1: 10e4e83224b309b97341bc45677b0016422569fa SHA-256: f242e97c5322e0fc1f23d910579aa4d6b3a1a7c553bf587990cd0591a0e4025c
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 0.7405

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/strik?utm_term=what+is+digital+zoom+in+photography PDF link annotation
    • http://jodefugivu.22web.org/sample_medical_school_letter_of_recommendation_template.pdfIn PDF document text
    • https://lumixomenuvaw.weebly.com/uploads/1/3/4/7/134745504/7660420.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452626/normal_5ffeedb24dab2.pdfIn PDF document text
    • https://zexaloguf.weebly.com/uploads/1/3/4/5/134576330/4713035.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420604/normal_5fcb971ad999a.pdfIn PDF document text
    • http://xekuluw.iblogger.org/maluvawewuzinuxev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454677/normal_5fd305e725bb5.pdfIn PDF document text
    • http://tezosomebapixim.22web.org/tinkle_comic_books.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461484/normal_5fff021a9e0cd.pdfIn PDF document text
    • http://pimegaxonubaz.22web.org/hoover_windtunnel_vacuum_attachments.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496582/normal_600366e953468.pdfIn PDF document text
    • https://noruwapawufibem.weebly.com/uploads/1/3/0/9/130969999/33dcc.pdfIn PDF document text
    • http://watenaz.iblogger.org/finding_slope_worksheet.pdfIn PDF document text
    • http://zasegusof.epizy.com/subtracting_fractions_and_mixed_numbers_worksheet.pdfIn PDF document text
    • http://nigowona.rf.gd/bizukulizijixe.pdfIn PDF document text
    • http://zarusorujot.epizy.com/human_development_report_2017_undp.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/gamesir_z1_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/mid_heel_platform_shoes_for_ladies.pdfIn PDF document text
    • http://dejamatokato.rf.gd/cadsofttools._com_to_dwg.pdfIn PDF document text
    • https://s3.amazonaws.com/jezobasit/65575906062.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/free_printable_contraction_worksheets_for_second_grade.pdfIn PDF document text