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

Static analysis result for SHA-256 066ec2044102fb4b…

MALICIOUS

Office (OOXML) / .XLSX

686.5 KB Created: 2023-12-04 17:54:29 UTC Authoring application: Microsoft Excel 16.0300 First seen: 2024-06-11
MD5: 56b583aa16f1e43635864411e969e9e6 SHA-1: 714b89ce79b81523994f989e9d4daf7ed8d15a10 SHA-256: 066ec2044102fb4b34126dd41e9dc279ec9e39f2467c83b3ef9aca81dce6d7db
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model and Distributed Component Object Model

The sample is an Excel file containing an embedded OLE object identified as Equation Editor. This is a high-severity finding and a common technique used to deliver exploits, often targeting vulnerabilities within the Equation Editor itself. No further scripts or document body content were available for analysis.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/gA.Ab7TLxb 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
c3f39781d9331ea41e7930e4f39c4f26e0065fe912d6fb9a1ef916dc1822179d		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/gA.Ab7TLxb 935424 bytes

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