Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 e53d425a56669b71…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2021-10-26
MD5: e6b7dcbb5eb6607578bd3ec82538c886 SHA-1: f360180393ad057046a9576d0379f67b03e9f976 SHA-256: e53d425a56669b71dfad6294f980be9448d4675aed41cc0ac443dde85c1640ae
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, indicating it attempts to pull content from a remote source. The ClamAV detection as 'Doc.Downloader.Redline-9972754-0' strongly suggests a downloader functionality. The embedded URLs point to a suspicious IP address, likely serving as the initial stage for downloading a 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://192.210.149.241/..--........................-......-----wiz............----..-...........wiz/..-.-.--.........wii..............---...) — 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://192.210.149.241/..--........................-......-----wiz............----..-...........wiz/..-.-.--.........wii
  • 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://192.210.149.241/..--........................-......-----wiz............----..-...........wiz/..-.-.--.........wii..............--- Remote template reference
    • http://192.210.149.241/..--........................-......-----wiz............----..-...........wiz/..-.-.--.........wii..............---.............wii.wiz........wiiii.......................wizRemote template reference
    • http://192.210.149.241/..--........................-......-----wiz............----..-...........wiz/..-.-.--.........wiiRemote template reference
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)

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