Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e06776073d92b2a…

MALICIOUS

PDF

61.3 KB Created: 2021-03-08 23:23:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 83a8fa35dda99e6ca32969560f9e37ed SHA-1: 72d15735eb1f432cd1cce6b5a732a11823539172 SHA-256: 3e06776073d92b2aff4bba34cdbf9792f8c67075da941c6c849ec29c2175806d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.8503

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://mezovuduw.ru/award?keyword=approximation+questions+pdf+for+ibps+clerk PDF link annotation
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    • https://static.s123-cdn-static.com/uploads/4479691/normal_5fcd0cfd81ba1.pdfIn PDF document text
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    • http://eurofamily.pro/31784507073pwa2y.pdfIn PDF document text
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    • http://getsol.xyz/give_one_positive_effect_of_volcanic_eruptionm29nt.pdfIn PDF document text
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    • https://baxemazone.weebly.com/uploads/1/3/0/7/130739829/sogomejatirepuw.pdfIn PDF document text
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    • https://lipojiwogim.weebly.com/uploads/1/3/0/7/130776075/pobubuniporid.pdfIn PDF document text
    • https://fanizoliboligom.weebly.com/uploads/1/3/1/0/131070566/molures_regiwonat_menerazanuj_xoxajotideje.pdfIn PDF document text
    • https://nivejuva.weebly.com/uploads/1/3/4/7/134713874/598036.pdfIn PDF document text
    • https://bajigexok.weebly.com/uploads/1/3/4/1/134131467/tonitinivuk_tosukuxo_xuwuzoli_mapebiselevog.pdfIn PDF document text
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