Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8a12a856f736f0c…

MALICIOUS

PDF

51.2 KB Created: 2021-08-25 01:20:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 67a584677e8f5705c48befc7285c2244 SHA-1: bafdb78bbbf51e4f2cba7183b36450bccd0e2b38 SHA-256: f8a12a856f736f0c8c098f8a73a85bc6146394882feb0652522b5ef2e23642e2
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, several of which point to compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The PDF's structure and embedded links are indicative of a spearphishing attachment, aiming to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7086

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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 http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080d0619fdc8---livoge.pdf In PDF document text
    • http://cw-cut.com/uploads/file/zebegol.pdfIn PDF document text
    • http://elcwma.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/83332297198.pdfIn PDF document text
    • http://henskeschildersbedrijf.nl/upload/xudikumag.pdfIn PDF document text
    • https://volnynaklad.cz/data/file/nagavutatama.pdfIn PDF document text
    • http://dsrental.com/userData/board/file/kasisututarofutagogawami.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098206861447---31743032190.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf5cae288a7---terodonujadepar.pdfIn PDF document text
    • https://galerie-louise.be/userfiles/files/70725317498.pdfIn PDF document text
    • https://egca.fr/userfiles/file/gigimapawod.pdIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=impend+in+a+sentencePDF link annotation

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