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

Static analysis result for SHA-256 f4fc313fbfeafb3e…

MALICIOUS

Office (OLE) / .XLS

273.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: c96139bf98423aaabcdf618081663a40 SHA-1: f14629ec76888b6a4eb54e5d849a6f34058d7fea SHA-256: f4fc313fbfeafb3eb383097ff2c9f791cfb0f687a8488b8bc0923e9d693cdc4c
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.005 Visual Basic

The sample is an Excel 4.0 (XLM) macro sheet that uses a lure to trick the user into enabling macros by impersonating a document signing service. The presence of the XLM macro sheet and the lure strongly suggest malicious intent. The document body contains strings that appear to be part of a URL, 'sssolutionsllc.org/k.php', which is likely used to download a secondary payload.

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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