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

Static analysis result for SHA-256 6782b1a05b867003…

MALICIOUS

Office (OOXML) / .DOC

26.7 KB Created: 2024-12-03 07:06:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: 5dd50341d0228cf5c3affd3818242486 SHA-1: 52c1dc37220b82c9a4ebdc2045e9e0db2564af04 SHA-256: 6782b1a05b867003e5bcfc30375f1770b8fc417e785919d0dfd827113df7c91a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample contains an embedded OLE object that is known to be vulnerable to CVE-2026-21509. This vulnerability allows for exploitation of OLE objects, bypassing Protected View, to execute arbitrary code. The document body is a lure for a 'Structural Design Proposal' which directs the user to an attached PDF for details, likely a social engineering tactic to encourage interaction with the malicious object.

Heuristics 3

  • CVE-2026-21509 exploit — vulnerable OLE CLSID in embedded object high CVE related CVE_2026_21509
    Embedded OLE object contains the CLSID associated with CVE-2026-21509 (OLE/COM Killbit/Protected View bypass). Actively exploited in the wild.
  • Embedded OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • 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.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
4a3658eb6da6bd40166e2ec6ba3c954d60d85c14d8fa4dbae9c1ab85a6959d92		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 3072 bytes
emf_00.emf
75be7d737f1862ee131c28bcd7c7aae452f4664eba96ff151ff65a67ccc36abd		 ooxml-emf OOXML EMF part: word/media/image2.emf 5112 bytes

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