Malicious PDF — malware analysis report

Static analysis result for SHA-256 0414991cd7639aa3…

MALICIOUS

PDF

58.4 KB Created: 2021-02-26 00:09:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc12ecbad588078372bf0f61f7689007 SHA-1: 1a1ec0433239fa57d3de6883d33e9dffc4124174 SHA-256: 0414991cd7639aa3c7282f9246e39952642f1e4c670ff0842d8d43edfbd7803f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many of which are generated for SEO purposes and point to other PDF files, suggesting a link farm designed to host malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords related to job applications, likely a lure to encourage clicks on the embedded malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6609

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/award?keyword=how+to+apply+for+a+job+at+lowes
    • http://accface.in/vosexg2tkn.pdf
    • http://tcerkovniekupola.space/kudinebegekazaxebipelgdh.pdf
    • https://cdn.sqhk.co/tasokuxu/yjchjrz/sim_toolkit_application_not_installed.pdf
    • https://cdn.sqhk.co/towinomer/chdgfhg/wosobesuvedavutaxo.pdf
    • http://makedctl.site/42084593534jm2hm.pdf
    • https://cdn.sqhk.co/wisulekekij/BhcYggq/secret_rooms_mod_1._12_2_9minecraft.pdf
    • https://kawotubizon.weebly.com/uploads/1/3/1/8/131871780/duxufelemaz.pdf
    • http://busivel.xyz/vekobonozegu11ot7.pdf
    • https://cdn.sqhk.co/rubalibuzodi/ghgiQja/zegalaweviguga.pdf
    • https://s3.amazonaws.com/donake/i_love_you_full_movie_bengali.pdf
    • http://zutugidod.onlinewebshop.net/66603923356.pdf
    • http://wufagezigedo.onlinewebshop.net/zujuwefojuzazosil.pdf
    • http://fapubogodomeduj.epizy.com/textbook_of_caesarean_section.pdf

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