Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 66a9b9955fa7240b…

MALICIOUS

Office (OOXML)

46.5 KB Created: 2018-10-22 04:24:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: c6f99ffd391b2d93c2d8b0c209ab8d4d SHA-1: 153ff6727029edc2e789f5f5fdf5dec91107fecf SHA-256: 66a9b9955fa7240b45137d09dc265306ae751541de510cd9f4288f1a9972b02c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The OOXML document contains heuristics indicating remote template injection and external relationship usage, pointing to a malicious intent to download further content. The embedded URL 'http://recent.wordupdate.com/ver/update12/KB466432' is highly suspicious and likely serves as a download source for a secondary payload. The document body content, while appearing to be geopolitical commentary, is likely a lure to distract from the malicious functionality.

Heuristics 3

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://recent.wordupdate.com/ver/update12/KB466432) — 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/settings.xml.rels: http://recent.wordupdate.com/ver/update12/KB466432
  • 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://recent.wordupdate.com/ver/update12/KB466432
    • 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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