Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 4a46ea9f7542eb49…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 6a5e08d4295d7b72e44640c7ea7b5feb SHA-1: 1b8ccec75827f2276a05b72eb958a1f3ec330c75 SHA-256: 4a46ea9f7542eb49beb3195e220c757ebaad0749f64f70ddb65745691b3078d5
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 a suspicious URL. This indicates the document is designed to fetch and likely execute a secondary payload. The ClamAV detection as 'Doc.Downloader.Redline-9972754-0' further supports its role as a downloader.

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://198.46.201.115/.........................................................wiz.wiz/wiz....wiz.wiz) — 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://198.46.201.115/.........................................................wiz.wiz/wiz....wiz.wiz
  • 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://198.46.201.115/.........................................................wiz.wiz/wiz....wiz.wiz
    • 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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