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

Static analysis result for SHA-256 32527c8f7e4e5e53…

MALICIOUS

Office (OOXML) / .DOC

10.7 KB Created: 2017-12-14 13:55:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2022-05-04
MD5: ffd2c43795c0abbca122503fc0c1a05f SHA-1: 48de01eb8c3363850237defc2d4984a7d19b4eeb SHA-256: 32527c8f7e4e5e53dbb1f7ec5ae6b33cabdbaf493bb32774fe5b870f11de2f20
82 Risk Score

Malware Insights

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

The sample is a malicious OOXML document that leverages CVE-2017-0199 to load an external OLE object. This object points to the URL 'https://pages.github.com@rush.ax/SO2Kl', which is highly suspicious and likely serves as a download location for a second-stage payload. The document body itself contains minimal exploitable content, indicating the primary malicious function is driven by the embedded OLE object.

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://pages.github.com@rush.ax/SO2Kl
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • 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/2015/wordml/symex
    • 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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