Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 9680371fc4f2cfee…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2021-05-26
MD5: d445a78d8485407069219fbe6e637668 SHA-1: 6707570b579861d2673790b6203d9a3231c6bfeb SHA-256: 9680371fc4f2cfeecb07af670df0bb4672e1831280e6609df8f5131e5ab8b44b
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file exhibits characteristics of a downloader, indicated by critical ClamAV detection as 'Doc.Downloader.Redline-9972754-0'. Heuristics for remote template injection and external relationships point to the URL http://officefiletransferintergration.mangospot.net/..-.......................................................................................-/...................................wbk as a source for a secondary payload. The presence of this URL strongly suggests an attempt to lure the user into downloading and executing malicious content.

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://officefiletransferintergration.mangospot.net/..-.....................................................................................) — 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://officefiletransferintergration.mangospot.net/..-.................................................................
  • 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://officefiletransferintergration.mangospot.net/..- Remote template reference
    • http://officefiletransferintergration.mangospot.net/..-.......................................................................................-/...................................wbkRemote 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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