Malicious Office (OOXML) / .DOC — malware analysis report

Static analysis result for SHA-256 55bd3129b96e6ff7…

MALICIOUS

Office (OOXML) / .DOC

11.4 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 5f3486f563cfa3c1883f59f45e74c02d SHA-1: e33258b4790c9f26c1a86dfa7acf27b8f196da36 SHA-256: 55bd3129b96e6ff74e23e00075c972e5e35f629a9b6e9968c6ebdefbca2e12d9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The OOXML_REMOTE_TEMPLATE and OOXML_EXTERNAL_REL heuristics indicate that the document is configured to fetch content from an external URL, which is a common technique for delivering malware. The ClamAV detection 'Doc.Downloader.Redline-9972754-0' further supports this, suggesting a downloader functionality. The extracted URL is highly suspicious and likely serves as the source for the secondary payload.

Heuristics 4

  • ClamAV: Doc.Downloader.Redline-9972754-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Redline-9972754-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://bit.do/fPvrL) — a common remote-template-injection vector used by Hancitor, Emotet and many phishing campaigns. Word can fetch and apply the remote template; macros in that template may execute depending on Office policy and trust state.
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/webSettings.xml.rels: http://bit.do/fPvrL
  • 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://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

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