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

Static analysis result for SHA-256 7db269307bfcb56b…

MALICIOUS

Office (OOXML) / .XLSX

2.85 MB Created: 2025-09-10 01:57:00 UTC Authoring application: Microsoft Excel 15.0300
MD5: 3d666f5eb78467046a98076f409ae00f SHA-1: 1df3e7dd2ea4f8d0c9943904ad698c141be85b7b SHA-256: 7db269307bfcb56b14a67f792dea66c70ba36346ed88b57ded2c08e082e179a8
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The high-severity heuristic 'OLE_EQUATION_EDITOR' indicates the presence of a vulnerable Equation Editor OLE object within the Excel file. This is a common technique used to exploit CVE-2017-11882 or similar vulnerabilities, leading to the execution of arbitrary code. 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/U1RHv.6n6 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
a519799da4872cf504acee430080bd9c334d4acf82c0d6556c25c9e9c49a5246		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/U1RHv.6n6 2955264 bytes
ooxml_oleobject_00_ole10native_00.bin
8ce34e08e8d7f61186f220a7e317b3dbf0f5d165cd6ed07d6d86435594cb0319		 ole-package OOXML xl/embeddings/U1RHv.6n6 Ole10Native stream: OLe10nATIvE 2929179 bytes

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