Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 8737233acb256c1b…

MALICIOUS

Office (OLE)

406.0 KB Created: 2010-07-19 12:00:27 Authoring application: Microsoft Excel
MD5: 7d7285fc42113a8f197ca3549f05b3b8 SHA-1: a8b63e18b4d83faf84a2c76a3b969af1570d3626 SHA-256: 8737233acb256c1b6aff3cba6f93928c3521eeef1fb84c48fa63f36320f65709
230 Risk Score

Malware Insights

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

The file is an Excel document containing VBA macros that utilize WScript.Shell and CreateObject to execute arbitrary code. The macros likely attempt to download and execute a second-stage payload from one of the embedded URLs. The document body contains seemingly random location and country codes, which may be obfuscation or part of a lure.

Heuristics 7

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://mportal.mouchel.com/support_services/human_resources/forms/default.aspx
    • http://www.examplewebsite2.com

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
257edcf6c3130d031b07fb65a0695425c5d351a5af6d513d56b4d196c93f6f6d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 44228 bytes

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