Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eeff8af114edcf9…

MALICIOUS

PDF

52.6 KB Created: 2021-03-30 01:58:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 2124027ce8fa5142d1c60bc4b80b0392 SHA-1: b3b6e4a583511317073fc18198f3dff4b5d4affb SHA-256: 4eeff8af114edcf9d4c23cacafb94b1186d9650ffd042b330383801d554f86db
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, with one specifically pointing to 'soxebez.ru', which is flagged as a potential phishing or malware distribution domain. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document is designed to host many links on disposable hosting, further supporting a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7797

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://soxebez.ru/award?keyword=amor+liquida+zygmunt+bauman+pdf PDF link annotation
    • http://toguvuveleguna.22web.org/pimune.pdfIn PDF document text
    • https://cdn.sqhk.co/jekunesoru/6iiNgcT/portal_turret_soundboard.pdfIn PDF document text
    • https://sarerudaguf.weebly.com/uploads/1/3/4/3/134373173/gilad.pdfIn PDF document text
    • https://tirilume.weebly.com/uploads/1/3/4/8/134886795/a42258308310a.pdfIn PDF document text
    • https://wimukesogizat.weebly.com/uploads/1/3/4/6/134639197/nulatofogotuloj.pdfIn PDF document text
    • https://jufukakoxojopop.weebly.com/uploads/1/3/4/3/134317893/0e2bfefb5dfcfa.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/4QE7eqQ/95955949682.pdfIn PDF document text
    • https://xizavuxovom.weebly.com/uploads/1/3/3/9/133986710/459317.pdfIn PDF document text
    • http://molosorew.iblogger.org/67402641825.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/1436461319.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66315886-fdaa-4438-8102-8bd5e1f4f34a/finogolesotexaba.pdfIn PDF document text
    • http://gagemusogigubew.epizy.com/risk_legacy_rules.pdfIn PDF document text
    • http://jiresigotapikeb.rf.gd/modern_calligraphy_practice.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/apfelkuchen_mit_apfelmus_springform.pdfIn PDF document text
    • http://pebuvow.rf.gd/invoice_form_template_html.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e5fb4c9-0707-4ec1-ac44-f33d832826e8/15616406231.pdfIn PDF document text
    • http://dafemekadur.epizy.com/sonic_the_hedgehog_golden_retriever.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c51c0a0-984c-4382-9917-254c28e47b52/93279024834.pdfIn PDF document text
    • http://kegiburumimiwin.rf.gd/simple_past_tense_exercises_for_beginners.pdfIn PDF document text
    • http://tuwelifijija.rf.gd/xelojukatemisepu.pdfIn PDF document text
    • http://muwumatenenuli.rf.gd/risk_analysis_journal.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/funny_test_answers_defend_your_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/vulalazafido.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d842d290-2a0c-4a91-92ba-834cd04b6e4d/macbeth_act_2_quotes_explained.pdfIn PDF document text

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