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

Static analysis result for SHA-256 222ee042371c3a77…

MALICIOUS

Office (OOXML) / .DOC

11.5 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 82c00e6d52c4bd180dbcaa7f08cdbebf SHA-1: 41364331f507cfa6b5275596584d4d140c772f32 SHA-256: 222ee042371c3a777342871c2d048a6d6008bbe71641f30b0700a9b1cc7f448b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The file exhibits characteristics of a downloader, specifically triggering heuristics for remote template injection and external relationships pointing to the URL https://bribble.com/oCQBR. The ClamAV detection as 'Doc.Downloader.Redline-9972754-0' further supports this. The primary function appears to be fetching and executing a secondary payload from the identified external resource.

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 (https://bribble.com/oCQBR) — 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: https://bribble.com/oCQBR
  • 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://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

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