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

Static analysis result for SHA-256 8ebe0b5908f4f989…

MALICIOUS

Office (OOXML) / .XLSX

701.7 KB Created: 2022-08-10 18:51:50 UTC Authoring application: Microsoft Excel 16.0300
MD5: 71123da54706454a961ed8bf23b54db4 SHA-1: c4217ec9926d6c45b3a7f410869508211074216a SHA-256: 8ebe0b5908f4f9893bab3e3a2f6a68fb78487aa84e7120bd0edc544eda2c09d1
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The file is an Excel document containing an embedded OLE object. The high-severity heuristic 'OLE_EQUATION_EDITOR' specifically identifies this object as an Equation Editor OLE object, a common vector for exploit delivery. The document body contains what appears to be financial or shipping data, potentially serving as a lure. No scripts were extracted, and no direct IOCs like URLs or hashes were found.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/rUP7iB.WcVu 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
94c13b03a6ff1e66d44b5ef4f52476d585c8413fb3c22715655ff9df2247dd62		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/rUP7iB.WcVu 1010688 bytes
ooxml_oleobject_00_ole10native_00.bin
e68a7653a729691e690bbc08addd3c15d76c7982c1c610592909ad371eb97b10		 ole-package OOXML xl/embeddings/rUP7iB.WcVu Ole10Native stream: ole10nATive 1000047 bytes

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