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

Static analysis result for SHA-256 9f6d5acf742371fc…

MALICIOUS

Office (OOXML) / .XLSX

678.3 KB Created: 2023-08-03 11:34:29 UTC Authoring application: Microsoft Excel 16.0300
MD5: 1ee98cf4a74207ece1159008383ce09e SHA-1: af076dc6bdd7ab7f2ee42af82742ffd1dfedfd9b SHA-256: 9f6d5acf742371fc9ea8ed49546f92e45456cc6d9b6164e147d8a4cd8dfdbf41
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The XLSX file contains an embedded OLE object identified as an Equation Editor object. This is a common technique used to exploit vulnerabilities in the Equation Editor component to execute arbitrary code. The presence of this object strongly suggests the file is a malicious dropper or exploit container.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/aSPVM.QhA212 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
51678a14ca59657c5c2a1785fadc50137194370a402ac9f31f158604d9184a45		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/aSPVM.QhA212 961024 bytes
ooxml_oleobject_00_ole10native_00.bin
1b7495b24444dbcdbc6808bc8b20a9383831a75c02e6bf3daa4e310bf6c22fc2		 ole-package OOXML xl/embeddings/aSPVM.QhA212 Ole10Native stream: Ole10NATIve 950956 bytes

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