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

Static analysis result for SHA-256 93402d840773f242…

MALICIOUS

Office (OOXML) / .XLSX

664.2 KB Created: 2024-03-25 10:30:17 UTC Authoring application: Microsoft Excel 12.0000
MD5: 91dae0556e827a87330970f2bbc7544c SHA-1: a1c235f7ad35862fc053e5eeccd7e851e3114f99 SHA-256: 93402d840773f242d9b0bd56538a10db080b524c74608d58b506de61e8435321
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The file is an Excel document containing an embedded OLE object, specifically identified as an Equation Editor object. This strongly suggests exploitation of a known vulnerability within the Equation Editor component to achieve arbitrary code execution. No further IOCs were extracted from this sample.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/7AWcoz.9y 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
f7df3be8b319adc68ccc896cc5ea41989fcfde7e7408ed1fb1cb13cdaa12e461		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/7AWcoz.9y 908288 bytes
ooxml_oleobject_00_ole10native_00.bin
635fa6e66899c24250c67423a0d0651db6de32d6a2260a2903967ff67370216d		 ole-package OOXML xl/embeddings/7AWcoz.9y Ole10Native stream: OlE10nATive 898771 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.