Analysis Overview
SHA256
8fbe5fb5df1a32d51b3dc796042e2a12d8f83afe9a6186be9b8af10acb695877
Threat Level: Known bad
The file bros.exe was found to be: Known bad.
Malicious Activity Summary
Xworm
Xworm family
Detect Xworm Payload
Drops startup file
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-20 18:34
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xworm family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-20 18:34
Reported
2024-06-20 18:36
Platform
win7-20240419-en
Max time kernel
147s
Max time network
119s
Command Line
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xworm
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bros.lnk | C:\Users\Admin\AppData\Local\Temp\bros.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bros.lnk | C:\Users\Admin\AppData\Local\Temp\bros.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bros.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\bros.exe
"C:\Users\Admin\AppData\Local\Temp\bros.exe"
Network
Files
memory/2188-0-0x000007FEF5D13000-0x000007FEF5D14000-memory.dmp
memory/2188-1-0x00000000010B0000-0x00000000010BE000-memory.dmp
memory/2188-6-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp
memory/2188-7-0x000007FEF5D13000-0x000007FEF5D14000-memory.dmp
memory/2188-8-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-20 18:34
Reported
2024-06-20 18:36
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
100s
Command Line
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xworm
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bros.lnk | C:\Users\Admin\AppData\Local\Temp\bros.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bros.lnk | C:\Users\Admin\AppData\Local\Temp\bros.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bros.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\bros.exe
"C:\Users\Admin\AppData\Local\Temp\bros.exe"
Network
| Country | Destination | Domain | Proto |
| US | 52.111.229.43:443 | tcp |
Files
memory/1576-0-0x00007FFDCF893000-0x00007FFDCF895000-memory.dmp
memory/1576-1-0x0000000000DE0000-0x0000000000DEE000-memory.dmp
memory/1576-6-0x00007FFDCF890000-0x00007FFDD0351000-memory.dmp
memory/1576-7-0x00007FFDCF893000-0x00007FFDCF895000-memory.dmp
memory/1576-8-0x00007FFDCF890000-0x00007FFDD0351000-memory.dmp