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

Static analysis result for SHA-256 8bd77dbc4d454553…

MALICIOUS

Office (OOXML) / .XLSX

680.1 KB Created: 2023-08-03 11:34:29 UTC Authoring application: Microsoft Excel 16.0300
MD5: f6c8fc6e8459c34e01e3ea58e1670563 SHA-1: 3d21b005c374534603a604236744505002a81b58 SHA-256: 8bd77dbc4d4545539e39f05f2bc150118fb9c5c43983a3eb40fc393de8440ed6
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The sample is an Office Open XML (XLSX) file containing an embedded OLE object identified as an Equation Editor. This is a high-severity finding, indicating the likely presence of a vulnerability exploit within the OLE object, commonly used to execute arbitrary code. No document body or scripts were extracted, limiting further analysis of the payload.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/fhSpEA.s0MzFRg 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
cab1f2202f9e8f3d33dbdeca61b6740f9612a0f66318eb2a636c13b42e761a83		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/fhSpEA.s0MzFRg 1018880 bytes
ooxml_oleobject_00_ole10native_00.bin
aea3bbedc434e87a723bff0513ea7b332941bef8a6f803070957b7880ab6b657		 ole-package OOXML xl/embeddings/fhSpEA.s0MzFRg Ole10Native stream: Ole10naTiVE 1008249 bytes

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