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

Static analysis result for SHA-256 e4888d4edefe68b5…

MALICIOUS

Office (OOXML) / .DOC

66.0 KB Created: 2021-05-25 09:22:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: 7c1da2260d79f74a88f2da853f8bbf16 SHA-1: 90bde7ce89a55523f632ce01eb0d903564190335 SHA-256: e4888d4edefe68b56cf5521fd110e5047ea2e67add60961fc9739f4f329b5db6
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The file is a malicious OOXML document containing VBA macros, indicated by the OOXML_VBA and OLE_VBA_DOCOPEN heuristics. The presence of a Document_Open macro suggests an attempt to automatically execute code upon opening. The OLE_VBA_GETOBJ heuristic further points to suspicious object manipulation. No specific document body text or scripts were provided for deeper analysis, but the presence of macros strongly implies a macro-based execution attack pattern.

Heuristics 4

  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • VBA project inside OOXML medium OOXML_VBA
    Document contains vbaProject.bin — VBA macros present
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.
    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
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://ns.adobe.com/photoshop/1.0/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
20e33eca735ea98132e3b78a18ac3a288f51ddb8c96e68fd768d5adafbbc3e86		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 967 bytes
vbaProject_00.bin
f22cbe4d3642ce0bec69c106b706dc7ce1a45aba4cc54ac27593bd1f7851d1c1		 vba-project OOXML VBA project: word/vbaProject.bin 17408 bytes

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