Analysis Overview
SHA256
b6fa0443564d16a046341addae783cdd610aa5eace7135153c141eda7dc7fa64
Threat Level: Known bad
The file RemBuild.exe was found to be: Known bad.
Malicious Activity Summary
Remcos family
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Checks SCSI registry key(s)
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-05 17:34
Signatures
Remcos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-05 17:34
Reported
2024-04-05 17:41
Platform
win11-20240221-en
Max time kernel
32s
Max time network
25s
Command Line
Signatures
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\System32\Taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\System32\Taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 | C:\Windows\System32\Taskmgr.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\System32\Taskmgr.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Processes
C:\Users\Admin\AppData\Local\Temp\RemBuild.exe
"C:\Users\Admin\AppData\Local\Temp\RemBuild.exe"
C:\Windows\System32\Taskmgr.exe
"C:\Windows\System32\Taskmgr.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp | |
| N/A | 127.0.0.1:2404 | tcp |
Files
memory/3756-2-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-1-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-0-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-6-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-7-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-8-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-9-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-10-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-11-0x0000019F24E90000-0x0000019F24E91000-memory.dmp
memory/3756-12-0x0000019F24E90000-0x0000019F24E91000-memory.dmp