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

Static analysis result for SHA-256 df407bada9651b06…

MALICIOUS

Office (OOXML) / .XLSX

667.2 KB Created: 2010-06-04 08:55:28 UTC Authoring application: Microsoft Excel 15.0300
MD5: 64a142fda742311b00a2b2a928345bc6 SHA-1: ba69e5514dab1453f2ef1e0f8d99c7799b4bdff7 SHA-256: df407bada9651b06555daff772292d300d46044558c2160923b818a3ed397130
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1559 Component Object Model Hijacking T1559.001 Component Object Model Hijacking: Component Object Model Hijacking

The file is an Excel spreadsheet containing an embedded OLE object, specifically identified as a Equation Editor exploit. This indicates the document is designed to leverage a vulnerability in the Equation Editor component to execute malicious code. The embedded OLE object's filename is also listed as an IOC. No scripts were extracted from this sample.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/26lCsEkSm.HDaPoty 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
2401e9d7140c1d35773aedd8b95b4342fd3824355550090e1f8ceecdf54ca8b0		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/26lCsEkSm.HDaPoty 974848 bytes
ooxml_oleobject_00_ole10native_00.bin
7905ee9bd9d76c4456b2c013c1f1bf2deb55afe35b1a2a56c99084998cd0a856		 ole-package OOXML xl/embeddings/26lCsEkSm.HDaPoty Ole10Native stream: olE10naTiVE 964792 bytes

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