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

Static analysis result for SHA-256 2aec3dcec0274b49…

MALICIOUS

Office (OOXML) / .DOC

157.0 KB Created: 2025-06-13 07:05:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 602662a57e81f730b76dd1edbd05a76f SHA-1: 4febfec574ba9bc99ffffb4de58b1bff26d2e0fa SHA-256: 2aec3dcec0274b498bd5e6996a7ff835980953485f5a96f105bfa8f4eceda98a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample leverages the CVE-2023-36884 vulnerability by including an external OLE object relationship pointing to a malicious RTF file. This indicates an attempt to download and execute a secondary payload from the provided URL. The presence of an external relationship to 'media/Kratos.jpg' may also be part of the lure or payload delivery.

Heuristics 4

  • CVE-2023-36884 — external RTF auto-load relationship critical CVE likely CVE_2023_36884
    Document auto-load relationship references a remote RTF file (https://www-treasury-gov-lk.downld.org/05166418/Accept_EULA.rtf), matching the stronger Storm-0978/RomCom external-RTF delivery shape. Plain clickable hyperlinks are not enough for this CVE rule.
  • 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.
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels\document.xml.rels: media/Kratos.jpg
  • 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 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
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/word/2015/wordml/symex

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