Office (OOXML) / .XLSX malware analysis — malicious · 4b167b15f2e72494

MALICIOUS

Office (OOXML) / .XLSX

3.46 MB Created: 2025-10-08 01:54:00 UTC Authoring application: Microsoft Excel 12.0000

MD5: ddad69dd37b17e751208ce5f54023336 SHA-1: 828ebcea6f5507389e3517053197cb2470f0615d SHA-256: 4b167b15f2e72494660009d0c540013258f70bbcf9f5940d3da3a1f0e23df2e0

80 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The sample is an Office document containing an embedded OLE object, specifically identified as an Equation Editor object. The document also contains a lure to enable macros or editing, a common tactic for malware droppers. The presence of these elements strongly suggests the document is designed to exploit the embedded object upon macro execution.

Heuristics 3

Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR

Embedded OLE object xl/embeddings/6u1kCC.0mfsG4t contains the Equation Editor CLSID, the legacy component exploited by CVE-2017-11882, CVE-2018-0802, and CVE-2018-0798.
Embedded OLE object medium OOXML_OLE_OBJECT

Document contains an embedded OLE object
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ooxml_oleobject_00.bin` `1e649b194fcef2878afcd7acb29655cd60e76d46e65af29c1436bab24b0f31f4`	ooxml-ole-object	OOXML embedded OLE part: xl/embeddings/6u1kCC.0mfsG4t	2966016 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.