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

Static analysis result for SHA-256 a2c582f5a0074465…

MALICIOUS

Office (OOXML) / .XLSX

663.6 KB Created: 2023-08-03 11:34:29 UTC Authoring application: Microsoft Excel 16.0300
MD5: 2a0e59dcead9db1a3fa3c6033456a2fa SHA-1: 9e3a52cabc51993dd96db52058140804b98e269c SHA-256: a2c582f5a0074465f85a112bf9be85d170b4e1b7065f44113080f926da029a59
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The sample is an Office Open XML spreadsheet containing an embedded OLE object. Heuristics indicate this object is an Equation Editor, a common component used to deliver exploits. The presence of this object suggests the file is designed to leverage vulnerabilities within the Equation Editor to execute a malicious payload.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/SFl.tgWr1u 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
77c0e04cb5d05f1701605682878cd640f3114b92a46ce82cbb091d67dc0d30fd		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/SFl.tgWr1u 944128 bytes
ooxml_oleobject_00_ole10native_00.bin
ac477ed555ef625b66fb3ab03e7e8689c8f6643b4a3543fa3c6d8a7e04bef1d9		 ole-package OOXML xl/embeddings/SFl.tgWr1u Ole10Native stream: Ole10NaTIve 934400 bytes

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