Office (OLE) / .XLS malware analysis — malicious · 7c8b4b560a8f2286

MALICIOUS

Office (OLE) / .XLS

488.5 KB Created: 2001-05-30 13:41:53 Authoring application: Microsoft Excel

MD5: 4cd697cbc293336d443dc3db0d104de5 SHA-1: e37070f68abfc7465ed1799a898949d6ef24b0a0 SHA-256: 7c8b4b560a8f2286eca7d65d9a9ee043cb3a5feb1ef5a26154cb8e48af975b72

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical OLE_VBA_SHELL heuristic indicates the presence of a Shell() call within the VBA macros, a common technique for executing arbitrary commands. The Workbook_Open heuristic suggests this malicious code is designed to run automatically when the workbook is opened. While no specific IOCs like URLs or hashes were extracted, the macro's ability to execute commands via Shell() strongly suggests it's a downloader or dropper for further malicious activity.

Heuristics 6

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
Suspicious extracted artifact high 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.
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)

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `1a8f2b90133b5b7a6e975b7226b89a1e8d6eea6400c7764913ba7f28f47c29d3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	783694 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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