Office (OOXML) malware analysis — malicious · e0a81811e35c19da

MALICIOUS

Office (OOXML)

12.2 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300 First seen: 2021-02-23

MD5: 57f3f0246cc873eef134f4a380df0423 SHA-1: f2d149537642a89f07bc9f42380f99255a222901 SHA-256: e0a81811e35c19dade6af8ef9a648cbc576d9fcdd87722dfbc28a3c31a262118

120 Risk Score

Heuristics 4

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.
CVE-2018-0798 — anomalous Equation Editor native stream high CVE likely CVE_2018_0798_EQUATION_NATIVE_ANOMALY

Embedded Equation Editor OLE data contains anomalous native stream bytes consistent with a CVE-2018-0798-style Equation Editor exploit. This is treated as likely CVE evidence because the Equation object is malformed and payload-like, but it does not match the exact public matrix-overflow byte signature.
Embedded OLE object medium OOXML_OLE_OBJECT

Document contains an embedded OLE object
Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ooxml_oleobject_00.bin`	ooxml-ole-object	OOXML embedded OLE part: xl/embeddings/oleObject1.bin	3584 bytes
SHA-256: `36c014ade70d96b4688288bfc3a683cba83c7a80529ffe0db990f8e7a22c4cd0`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis found candidate code region(s). Indicators: SC_GETPC_CALL
`ooxml_oleobject_00_ole10native_00.bin`	ole-package	OOXML xl/embeddings/oleObject1.bin Ole10Native stream: OlE10nATiVE	1392 bytes
SHA-256: `ef79a76cd24546db580bfa0d9342c55ba631df20cdea3b45eb8880f6f39e44cb`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis found candidate code region(s). Indicators: SC_GETPC_CALL

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