Malicious PDF — malware analysis report

Static analysis result for SHA-256 212d6b9149fae6f5…

MALICIOUS

PDF

83.6 KB Created: 2021-04-27 14:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24937bb2cc856ff2717e76ef4d4fe646 SHA-1: 3cb69eb1bd357fa94d161b4883370a26084b08de SHA-256: 212d6b9149fae6f53766f69b565034bc214f7166d1baa69a271508ce74a474d3
94 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 an embedded URI pointing to 'vilenefex.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Cummins isx service schedule'. No scripts were extracted, but the presence of multiple external URLs indicates a strong intent to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6672

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://vilenefex.ru/strik?utm_term=cummins+isx+service+schedule
    • http://damita.fun/survival_of_the_fittest_mtg_legality2x1n8.pdf
    • http://trackengine.host/best_self_propelled_lawn_mower_2020_australia1qhi5.pdf
    • http://cosmosqrab.online/contrato_de_arrendamiento_vivienda_word_mexico7l079.pdf
    • http://winoraama.fun/51668413137bvtav.pdf
    • http://about-central.com/75313527200lulb7.pdf
    • https://cdn.sqhk.co/fafujedajir/lhaJEl3/micro_battles_3_4pda.pdf
    • https://cdn-cms.f-static.net/uploads/4454182/normal_60274311c8de5.pdf
    • http://alisabor.design/clothes_activity_worksheetk3ntw.pdf
    • http://lusolakidareve.mywebcommunity.org/25941804256.pdf
    • https://static.s123-cdn-static.com/uploads/4498882/normal_5fe1be192ae35.pdf
    • https://cdn.sqhk.co/kobedobofepo/fgiiceu/cairo_club_orlando.pdf
    • http://balegetiwep.mywebcommunity.org/993934906.pdf
    • https://cdn-cms.f-static.net/uploads/4408993/normal_604cf2753523a.pdf
    • https://cdn.sqhk.co/vibebexez/0ia8Njf/satuvapupajepuzarunuk.pdf
    • http://teachost.com/dowujuffocop.pdf
    • https://cdn.sqhk.co/vabedesi/iMiMajW/janipinan.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000112c8.bin
36eea3e97848ce56c0d21873b12aaf52309aa38eaa156bea914b8aa8acc3d953		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112C8 4812 bytes
font_01_sfnt_off000122ea.bin
d8dc5c5c08109998c618a2576dc4c9802788ae9fe409b5fa94dad510658e637a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x122EA 10976 bytes

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