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

Static analysis result for SHA-256 e4c294130f4a71f8…

MALICIOUS

Office (OOXML) / .DOC

10.7 KB Created: 2017-12-14 13:55:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2022-06-14
MD5: 1b82d5fef22d35cd24327294c535c618 SHA-1: f701ea06c8751c424a3b3a11ebd5798cf379ec97 SHA-256: e4c294130f4a71f80c989015d45922b43b7a826219625241e230993718bae1e5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution 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, which in this case is a URL pointing to a remote resource. The heuristic firings indicate that this external object is used to download and execute a secondary payload. The primary IOC is the URL used for this download. No scripts were extracted, but the nature of the CVE-2017-0199 exploit strongly suggests a downloader or initial access mechanism.

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://carpentries-incubator.github.io@itop.so/LFSCO
    • 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

Open this report in the interactive analyzer, or submit your own file for analysis.