Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8aff7e6b501ca47…

MALICIOUS

PDF

59.6 KB Created: 2021-04-24 07:36:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75b0586503510aa0759f00f9797f570f SHA-1: 1ef9f6355ed03c897bddaec52583ff553d1c9eee SHA-256: d8aff7e6b501ca47cb85bdb588930ee29950f4dbc959a46932d5b18cc7d7b6e8
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple external URIs and is flagged by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, contains text related to resetting an irritrol controller, suggesting a lure. The presence of numerous links, including one to 'xajibur.ru', indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6421

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://xajibur.ru/strik?utm_term=how+do+i+reset+my+irritrol+controller
    • http://2220202.ru/lokifitujo2yged.pdf
    • http://gonalotuturopil.mywebcommunity.org/aqa_biology_gcse_revision.pdf
    • https://cdn-cms.f-static.net/uploads/4416512/normal_606c00224c6a6.pdf
    • https://static.s123-cdn-static.com/uploads/4380209/normal_5ff57a54e2579.pdf
    • https://cdn.sqhk.co/pixorikibam/hibiaFL/sopimudewebilin.pdf
    • https://cdn.sqhk.co/ritasuxa/cgiAigR/73166553997.pdf
    • https://cdn-cms.f-static.net/uploads/4426075/normal_601b60cca6a84.pdf
    • http://pewadulojuba.mypressonline.com/fifisilavaji.pdf
    • http://jijuduli.mywebcommunity.org/reset_netgear_3700.pdf
    • https://static.s123-cdn-static.com/uploads/4408321/normal_60049d5c48fea.pdf
    • http://world-wild-shop.com/pajomupajuzotexk4d2.pdf
    • http://organize.shop/numerical_methods_faires_burden_4th_editionm7afm.pdf
    • http://vomidujoma.scienceontheweb.net/agile_development_tutorial_point.pdf
    • https://cdn.sqhk.co/xovinexesun/icSArEi/sony_rewards_program.pdf
    • https://cdn.sqhk.co/bulenupulabo/ij6hfat/rock_climbing_gear.pdf
    • http://spindlndou.space/dan_brown_angels_and_demons_charactersiom59.pdf
    • https://cdn-cms.f-static.net/uploads/4413975/normal_606ba1d891171.pdf
    • http://fuguzametekobo.myartsonline.com/22827918795.pdf
    • http://pekafujojef.onlinewebshop.net/26086906914.pdf
    • http://dolinoko.atwebpages.com/rimakafamakaxore.pdf
    • http://wegamaluperetuj.atwebpages.com/55575153921.pdf

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