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

Static analysis result for SHA-256 500e7c61b1305dac…

MALICIOUS

Office (OOXML) / .XLSX

2.01 MB Created: 2023-08-03 11:34:29 UTC Authoring application: Microsoft Excel 16.0300 First seen: 2023-09-15
MD5: f70bc1f0cca1b6582c360aa15d0ad872 SHA-1: e29147cefd68e53a4dff97494c9f0ce1e646929e SHA-256: 500e7c61b1305dac06a322161cd1b244161bda6bdf595abe911f496d0979bb09
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File Execution T1204.002 Malicious File Execution: Malicious File T1559.001 Component Object Model Hijacking: Component Object Model

The file is an Excel document containing an embedded OLE object, specifically identified as an Equation Editor object. This strongly suggests exploitation of a known vulnerability within the Equation Editor component, which is commonly used to deliver secondary payloads. The embedded OLE object is the primary indicator of compromise.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/KaGodC8R.6tus 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
f9b4502a275e58c6fe7bf9816755f3234028774115f0eb9faa8c483a396143a1		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/KaGodC8R.6tus 2843648 bytes
ooxml_oleobject_00_ole10native_00.bin
7bdeaf252998d70b1f3f5d97de743ee688eb4eacd18d65badd7c322086a9b630		 ole-package OOXML xl/embeddings/KaGodC8R.6tus Ole10Native stream: oLE10nATIVE 2818801 bytes

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