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

Static analysis result for SHA-256 061562da10238160…

MALICIOUS

Office (OOXML) / .XLSX

785.2 KB Created: 2020-06-30 06:04:05 UTC Authoring application: Microsoft Excel 15.0300
MD5: 44003aa8f073945e2f59c9f569daf3c0 SHA-1: d5fa1fa42824d10e477db28808b9c57560538c73 SHA-256: 061562da10238160007b2526ddc54d8e97bbc45ba8d993b1b6d8c541f21707f0
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is an OOXML file containing an embedded OLE object, specifically identified as an Equation Editor object. This indicates an attempt to exploit a known vulnerability in the Equation Editor component to achieve arbitrary code execution within the context of the document. The embedded object's filename is also listed as an IOC.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/3uFs.H26Y 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
9a84d680dae511ba5b612e4e895892f0ce555f9c5a75df68e3b2b32327855e30		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/3uFs.H26Y 905728 bytes
ooxml_oleobject_00_ole10native_00.bin
86dc443205897f791c912c3642880d1c3514a72046227ecf8324cd5ed6e6167d		 ole-package OOXML xl/embeddings/3uFs.H26Y Ole10Native stream: OLe10NaTIVe 896190 bytes

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