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

Static analysis result for SHA-256 3ae4f13a556fed4b…

MALICIOUS

Office (OLE) / .XLSX

273.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: e5103d329ec2923a5750dba94f223385 SHA-1: a53215216e11c241a8fd925aa7282efc9e41444f SHA-256: 3ae4f13a556fed4b57a064008d93bc15803f1b3e47537e95a014c3d31c2ccebe
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1059.005 Command and Scripting Interpreter: Visual Basic

The sample contains Excel 4.0 macros and uses a lure to trick the user into enabling them, impersonating a DocuSign request. The extracted document body contains a URL, 'sssolutionsllc.org/k.php', which is likely used to download a secondary payload. The presence of XLM macros and the specific lure strongly suggest a malicious intent to execute further stages.

Heuristics 3

  • Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN
    Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
  • 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
  • Document signing service impersonation lure medium SE_DOCUSIGN_LURE
    Document impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context

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