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

Static analysis result for SHA-256 8f062eff426584e3…

MALICIOUS

Office (OOXML) / .XLSX

2.51 MB Created: 2025-09-04 00:14:20 UTC Authoring application: Microsoft Excel 12.0000
MD5: 8d11ffe01aeca185c00b8f8382dd1508 SHA-1: 50948e750fabbfee323c0fb6ec6cbb8e0850b1ee SHA-256: 8f062eff426584e3e3953a0f1b615651b694327ff89d46ca9ed6ba91e8b8c7ba
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1566.002 Phishing: Spearphishing via Service

The file is an Office document containing an embedded OLE object, specifically identified as an Equation Editor object. The heuristic 'SE_ENABLE_LURE' indicates that the document likely instructs the user to enable macros or editing, a common tactic for malware droppers. This suggests the embedded object is intended to be executed, likely to download and execute a second-stage payload.

Heuristics 3

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/BSbF.Bv6S8an 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
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
1560ed0c90a9814a0a8af7a88119aa6e6ce78d5c0a308ce558b456a9d610ec08		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/BSbF.Bv6S8an 3070464 bytes

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