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

Static analysis result for SHA-256 0e459b3c453d79eb…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 481c131f35e1dabc4448ac72e941d51e SHA-1: 5ccd740e5828c4af04b402ac063f85b2e7f73706 SHA-256: 0e459b3c453d79eb7f8a5278f8365e8c0e5dc0f7e57553ed7edf6b44212e768c
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file exhibits critical heuristic firings for remote template injection and external relationships, both pointing to the suspicious URL http://198.23.251.121/. This strongly suggests the document is designed to lure the user into downloading and executing a secondary payload. The ClamAV detection as Doc.Downloader.Redline-9972754-0 further supports this assessment.

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://198.23.251.121/--_-_-_-_-_-_...............................................................-_-_--/...................................) — 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://198.23.251.121/--_-_-_-_-_-_...............................................................-_-_--/...............
  • 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://198.23.251.121/--_-_-_-_-_-_...............................................................-_-_--/
    • http://198.23.251.121/--_-_-_-_-_-_...............................................................-_-_--/.........................................................................dot
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2006/wordml

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