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

Static analysis result for SHA-256 0eb3ee0dae1dae4d…

MALICIOUS

Office (OOXML) / .DOC

55.3 KB Created: 2022-08-23 23:16:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2022-09-02
MD5: d064cb92d41d98f30ca09afa7ea2e668 SHA-1: 4883b349b0b68e564be4b927dd2eea1a37c52b45 SHA-256: 0eb3ee0dae1dae4d19fa7fbd566490011a253c28799f31a4d7f1f0c92baa43d1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: User Execution

The sample is a Microsoft Office document that contains an external OLE object relationship and is related to CVE-2017-0199. This indicates that the document is designed to exploit a vulnerability to load a remote resource. The embedded URL points to a remote HTML file, which likely serves as a loader for a second-stage payload.

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://a.pomf.cat/litjjy.html
    • 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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