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

Static analysis result for SHA-256 836cd1dbb96268f2…

MALICIOUS

Office (OOXML) / .DOC

384.0 KB Created: 2023-02-22 01:31:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-02-23
MD5: da882d1154b23576f886dee8cae881cb SHA-1: fa34a3b86cea69093097106817ce304817dc62df SHA-256: 836cd1dbb96268f267f46c20dec7ea50909184f8d163f418b95a3eee1271dcb4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1059 Command and Scripting Interpreter

The sample exhibits characteristics of an Office exploit, specifically related to CVE-2017-0199, by attempting to load external content from a provided URL. This indicates a likely attempt to download and execute a secondary payload. The presence of embedded URLs further supports this delivery 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://www.mediafire.com/file/jcijq3pj54qk0a4/P1.docx/file
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2006/wordml
    • https://doccallingupdate.blogspot.com/atom.xml

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