Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 cea6f542ced7a136…

MALICIOUS

Office (OLE)

406.5 KB Created: 2010-07-27 12:28:24 Authoring application: Microsoft Excel
MD5: 622148b42448dbfc6ac58b8c1371d4fc SHA-1: 9b65f1dccbef77bf4431036039ea3b5d847bbcde SHA-256: cea6f542ced7a13600b1db0a716917a6bc60c7da6babf43b4dfed16bcfdf37ef
248 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is an Excel document containing VBA macros that utilize WScript.Shell and CreateObject, indicating an attempt to execute arbitrary commands. The macros likely download and execute a second-stage payload from one of the embedded URLs. The document body itself appears to be a list of locations and codes, possibly serving as a lure for a social engineering attack.

Heuristics 8

  • 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
  • Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 3 shell/COM execution token(s).

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