Malicious PDF — malware analysis report

Static analysis result for SHA-256 666677f9db05d135…

MALICIOUS

PDF

51.7 KB Created: 2021-03-10 15:26:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3fde55036a2128c99cc9839ef1a66802 SHA-1: da486d460169a2c7c03d105d4bd5fcedf69a047f SHA-256: 666677f9db05d135675189ec5a24cf8d09f85e28f5f3d66c507328f0cf200e55
124 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.7645

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://dugedepap.ru/award?keyword=pdf+advertising+media PDF link annotation
    • http://jizivuwisotok.22web.org/32852902869.pdfIn PDF document text
    • https://cdn.sqhk.co/segidexu/iiCibjb/voicemail_settings_on_this_phone.pdfIn PDF document text
    • http://fazoluniguket.iblogger.org/schaums_outline_mathematical_physics.pdfIn PDF document text
    • http://miwewumexurigan.sportsontheweb.net/kijanejazimobodule.pdfIn PDF document text
    • http://bibopasaxuvibu.mypressonline.com/sewaviwupuruxosexujo.pdfIn PDF document text
    • http://lejifip.sportsontheweb.net/sketchup_make_2014_free_download_32_bit.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/jaifwgc/fepaxotuzetiru.pdfIn PDF document text
    • http://pinopizo.sportsontheweb.net/how_to_erase_iphone_4s_without_apple_id.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/gubbi_mele_brahmastra_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/fapodadugonez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c265906a-709a-482f-a6ce-a9ea85a72a0a/tofidubuxetip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55058b0d-0fb1-4371-ad41-c9494155ebbd/how_to_be_good_at_penny_stocks.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c500f5c-58f6-45c4-9e94-4f9b04057cac/death_be_not_proud_by_john_donne_theme.pdfIn PDF document text
    • http://binaxasomeroxat.epizy.com/tufutirilutapisisi.pdfIn PDF document text
    • http://sidiwen.epizy.com/bruel_kjaer_2250_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/platform_high_heels_pumps.pdfIn PDF document text
    • http://waboxizolomove.rf.gd/57388620685.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bdd4fcd-2a7a-4252-ab75-9a372b5efa75/fekosixenubawepumogef.pdfIn PDF document text
    • http://silapopo.epizy.com/amelie_poulain_piano_sheet_music.pdfIn PDF document text
    • http://netupabajezi.rf.gd/16563463283.pdfIn PDF document text
    • http://tulifal.onlinewebshop.net/what_is_digital_humanities_scholarship.pdfIn PDF document text

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