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

Static analysis result for SHA-256 e5ad7596e5fc883f…

MALICIOUS

Office (OOXML) / .XLSX

14.5 KB Created: 2023-11-17 18:26:59 UTC Authoring application: Microsoft Excel 12.0000 First seen: 2024-05-22
MD5: e889497aae5825f3ae149a28c30a143f SHA-1: 14df2a6bf9aab41ac3fbb4879dabea7f2722af1b SHA-256: e5ad7596e5fc883fa78c1644afe8337bc65c1ce3bded087a2cf923b99af40e76
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The file is an XLSX document containing an embedded OLE object, identified as Equation Editor. This is a high-risk indicator, as Equation Editor is frequently used to exploit vulnerabilities in Microsoft Office to execute arbitrary code. The document body contains financial data, likely a lure to encourage opening the embedded object.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/oleObject1.bin 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
307d9970776b40d8413947c00a6163a494daa04f9fca700ddbfde5c097c3907b		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/oleObject1.bin 4096 bytes
ooxml_oleobject_00_ole10native_00.bin
8d41d99bb229b88c0f4da13dfe9db32dd084e853b76377576247ff3171e11bba		 ole-package OOXML xl/embeddings/oleObject1.bin Ole10Native stream: olE10natIVe 2002 bytes

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