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

Static analysis result for SHA-256 df0b09c9f359f2e0…

MALICIOUS

Office (OOXML) / .DOC

38.5 KB Created: 2013-10-31 15:25:00 UTC Authoring application: Microsoft Office Word 14.0000
MD5: 2092e7118fb860770fa8c9fe81db9b12 SHA-1: f70c0b07e9b54426cfad68bdf29ba5ae7a7a4d6e SHA-256: df0b09c9f359f2e086e5e6b78f6fc6f63c9be1c6023cc6ee1e698d6e0daba31b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is an OOXML document that leverages the CVE-2017-0199 vulnerability. This vulnerability allows the document to load an external OLE object from the URL 'https://ms.teckblog.live/!x-usc'. This mechanism is commonly used to download and execute a second-stage payload, indicating a malicious intent to compromise the user's system.

Heuristics 3

  • OOXML OLE2Link remote loader — CVE-2017-0199 related high CVE related CVE_2017_0199_RELATED
    Document contains an o:OLEObject Type=Link whose external oleObject relationship points to a remote URL. This is the OOXML OLE2Link activation shape associated with CVE-2017-0199 delivery, but the local file does not expose URL Moniker bytes or a weaponized extension/content type, so the exact CVE cannot be proven statically.
  • External OLE object relationship high OOXML_EXTERNAL_OLE_OBJECT
    Document contains an oleObject relationship whose target is an external HTTP(S) URL. Office resolves this through OLE/object update paths rather than as a normal user-clicked hyperlink.
  • 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 https://ms.teckblog.live/!x-usc
    • 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/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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