Office (OOXML) malware analysis — malicious · 6626ad56bfb7e97c

MALICIOUS

Office (OOXML)

41.6 KB Created: 2021-06-22 12:43:05 UTC Authoring application: Microsoft Excel 16.0300

MD5: 3042cbe5669e8ff7b90d913cbb76c79f SHA-1: 4b35c0364896f29640fccdafa4963087431d7908 SHA-256: 6626ad56bfb7e97cd30fd438cf6432544c02da52aefbbec6dc25df048788d6ec

160 Risk Score

Malware Insights

MITRE ATT&CK

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

The OOXML document contains VBA macros that reference cmd.exe and PowerShell. The GetObject call and the presence of VBA macros suggest an attempt to execute arbitrary code. The VBA code appears to be obfuscated, but the references to cmd.exe and PowerShell indicate a likely downloader or execution mechanism for a second-stage payload.

Heuristics 4

PowerShell reference in VBA critical OLE_VBA_PS

PowerShell reference in VBA
GetObject call high OLE_VBA_GETOBJ

GetObject call
cmd.exe reference in VBA high OLE_VBA_CMD

cmd.exe reference in VBA
VBA project inside OOXML medium OOXML_VBA

Document contains a VBA project — VBA macros present

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `359fe20c71932648f3640e4b0e01fc13c3d73e6887d5fe34347334c0a8cbd1d5`	vba-macro	oletools.olevba.extract_macros (decoded VBA source from OOXML)	35036 bytes
`vbaProject_00.bin` `7302f705a64a40a93daa1eb967eb048b3741ea362586f7eaa5541d480f400d69`	vba-project	OOXML VBA project: xl/vbaProject.bin	11264 bytes

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