Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4848f4d9f2f20eb7…

MALICIOUS

Office (OLE)

711.0 KB Created: 2021-07-14 08:38:23 Authoring application: Microsoft Excel
MD5: cf7f5baa644f2ab2cc64e58b95b667ca SHA-1: b91af7e6edf73159f7895c14d4dd568a63828dc4 SHA-256: 4848f4d9f2f20eb729f3cb2b7c80ee92d2fe4df59c847031123d714c3ad650af
416 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1203 Exploitation for Client Execution

The sample is an Excel document containing a Workbook_Open VBA macro that iterates through cells in Sheet1, concatenates their values into a string, and writes this string to a file named 'qWatchPane.sct' in the ALLUSERSPROFILE directory. It then uses WScript.Shell to execute this script via mshta.exe. The document body presents a fake invoice, indicating a phishing or social engineering lure.

Heuristics 11

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • LOLBin reference in VBA critical OLE_VBA_LOLBIN
    LOLBin reference in VBA
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Reference to mshta.exe high SC_STR_MSHTA
    Reference to mshta.exe
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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)
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
c2088ec01a9ba1d066941d419204b6d4bf22b390a700e830aadc7c5a375b7f0d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1263 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.