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

Static analysis result for SHA-256 d57594d9d794fd25…

MALICIOUS

Office (OOXML) / .XLSX

652.4 KB Created: 2022-08-10 18:51:50 UTC Authoring application: Microsoft Excel 16.0300
MD5: dd95bfed08cbb4b532a3eee3266bf0cb SHA-1: 38ce83f5c796baa196561ec401488dfb649aa4c5 SHA-256: d57594d9d794fd255d11875e23287c360431fa3c70a72ef9f0488dfb8a36b548
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 identified as an Equation Editor. This is a common technique for exploiting vulnerabilities in Equation Editor to execute arbitrary code. The document body appears to be a purchase order, likely a lure to entice the user to interact with the malicious embedded object.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/GSZI.0N 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
aece0d9d6aa6955b783533c4430994ee7efc3001b1e3b5467b609b6d262ae00d		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/GSZI.0N 940544 bytes
ooxml_oleobject_00_ole10native_00.bin
324c9831d6eb960cb0dac342d84211b7dc16c4b786b5b944d87084cb15fe3601		 ole-package OOXML xl/embeddings/GSZI.0N Ole10Native stream: olE10NATIVE 930626 bytes

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