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

Static analysis result for SHA-256 bf26430660102242…

MALICIOUS

Office (OLE) / .XLS

63.0 KB Created: 2021-08-17 12:24:08 Authoring application: Microsoft Excel
MD5: e9ac1722d47fd3f5c40fab347ca6105c SHA-1: e04acaabed424a27a510bf9e747496a694615706 SHA-256: bf26430660102242ebab4c75e929200fd8fcf08a5083fac6374669a0855fa4b9
120 Risk Score

Malware Insights

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

The sample is an Excel spreadsheet containing VBA macros. The 'SE_ENABLE_LURE' heuristic indicates the document likely prompts the user to enable macros. The 'Auto_Open' macro uses the ScriptControl object to execute code embedded in the document's 'Subject' and 'Comments' properties. This suggests a macro-based execution flow designed to download and run a second-stage payload.

Heuristics 4

  • MSScriptControl.ScriptControl — CVE-2015-0097 high CVE likely CVE_2015_0097_SC
    MSScriptControl.ScriptControl — CVE-2015-0097
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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
macros.bas
0278d22c57457c6ea65486c5e13f4b06bae683e9ef9fa360c905d1932da96848
vba-macro oletools.olevba.extract_macros (decoded VBA source) 862 bytes