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

Static analysis result for SHA-256 59ae748b1af7deec…

MALICIOUS

Office (OOXML) / .XLSX

672.0 KB Created: 2023-08-03 11:34:29 UTC Authoring application: Microsoft Excel 16.0300
MD5: 3ddfdb375f36cae9ba047bd7a0939450 SHA-1: 49bcd33a3a87cee74c59341a4b771d7012e6c3ea SHA-256: 59ae748b1af7deecb8f95c6813c4afbd56be8b11e4c264dde06b567d59878538
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The high-severity heuristic firing for an Equation Editor OLE object strongly suggests the file is designed to exploit a vulnerability within this component. This is a common technique for initial access, often leading to the execution of a secondary payload. No document body or scripts were extracted, limiting further analysis of the specific payload.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/IZ.dordR 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
2e78bcf8c888ec254d91e219a67073e69e2116a2915d2eba083da99fea7a748f		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/IZ.dordR 968192 bytes
ooxml_oleobject_00_ole10native_00.bin
ea46d0184f85a9937e783e31aee88e931cb2cac0f3b7d39ad37f2e557369998c		 ole-package OOXML xl/embeddings/IZ.dordR Ole10Native stream: oLE10NativE 958399 bytes

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