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

Static analysis result for SHA-256 0782a2070e674e39…

MALICIOUS

Office (OLE) / .XLSX

273.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: ce21a33b634b572514cdc5a327b08778 SHA-1: f7ac6299d0e19f452e4828bcb30eb9cb50383fff SHA-256: 0782a2070e674e39d93e31282fe5f9ca680c45394c39fb7fa343ec87a6f6cd94
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The sample contains Excel 4.0 macros, indicated by the OLE_XLM_AUTOOPEN heuristic. It also uses a lure to impersonate DocuSign, instructing the user to enable macros, which is a common social engineering tactic. The presence of XLM macros suggests an attempt to download and execute a payload from the URL 'sssolutionsllc.org/k.php'.

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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