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

Static analysis result for SHA-256 ea1fc94f7c60196a…

MALICIOUS

Office (OOXML) / .DOC

153.4 KB Created: 2022-06-17 07:07:00 UTC Authoring application: Microsoft Office Word 14.0000 First seen: 2022-06-17
MD5: 6451889244fc3daa3e50f73cbf2b1eb7 SHA-1: eb5eab2c83f295430017ed4d48034d05190eaac9 SHA-256: ea1fc94f7c60196a723a5656ea203c5eb023a1b42a347ab6916dabfbe6dbe330
84 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The file is a malicious OOXML document containing an embedded OLE object. The heuristic 'OFFICE_PACKAGE_RISKY_FILE' indicates that this package drops an auto-executable payload, specifically a JAR file. This suggests the document's primary purpose is to deliver and execute a secondary malicious payload. No scripts were extracted, and the document body was not available for analysis.

Heuristics 4

  • Ole10Native package drops an auto-executable payload critical OFFICE_PACKAGE_RISKY_FILE
    OLE Package displayName or fullPath ends in a directly auto-executable extension (a runnable binary or a script the default shell host runs on double-click). Embedding such a payload inside an Office document has no benign authoring use — it is a malware-delivery dropper.
  • Embedded OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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/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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
b16f3ecdef81fa5609418372ca25410c018a424b94a360d6cc28d893262f6843		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 128000 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.94, consistent with packed or encrypted content.
ooxml_oleobject_00_ole10native_00.bin
f70983bea3fc7b01a23a7021edd6432ffa3e3d1e7ca621c65f2bed76eeacc572		 ole-package OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native 123939 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.
emf_00.emf
11384ba1f4aa6ee284debca3cc880117dad99ab74409a34136061f508fc4996d		 ooxml-emf OOXML EMF part: word/media/image2.emf 5184 bytes

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