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

Static analysis result for SHA-256 be332eb4543ab814…

MALICIOUS

Office (OOXML) / .DOC

230.7 KB Created: 2022-09-20 07:56:00 UTC Authoring application: Microsoft Office Word 14.0000 First seen: 2022-09-25
MD5: c5887e998fb3b766783dcd3166bf92f2 SHA-1: 897f6a216e42f663308821b4e4826a468c463189 SHA-256: be332eb4543ab814514a685bc6448ea764f5bf0d729bf3f89a4f01bfa0967c97
84 Risk Score

Malware Insights

MITRE ATT&CK
T1559 Component Object Model and Distributed Component Object Model T1559.001 Component Object Model and Distributed Component Model: Component Object Model

The file is an OOXML document identified as malicious. It contains an embedded OLE object, which is flagged as a risky file type that drops an auto-executable payload, specifically a JAR file. The document body itself does not contain readable text, but the presence of the embedded OLE object strongly suggests a delivery mechanism for a secondary payload.

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
ff42fd85ab08daf2aef76d977f576e9f30c7982a3553a2f58de416e2fe732629		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 207360 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.97, consistent with packed or encrypted content.
ooxml_oleobject_00_ole10native_00.bin
76a465fde7edf022b9733710df75417573168d9fa99fc0bd8adb3286d35da613		 ole-package OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native 202715 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
72a0c638eca15b186ba919e576efd127a2e448d881122baff4d9a37e21199656		 ooxml-emf OOXML EMF part: word/media/image2.emf 5464 bytes

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