Analysis Overview
SHA256
5b2ae52cb8a7924d95ec9008dfcb8216468281fb5c7d07dcdf1a08b68f2bc65c
Threat Level: Known bad
The file sars.exe was found to be: Known bad.
Malicious Activity Summary
DarkCloud
Darkcloud family
Suspicious use of SetThreadContext
AutoIT Executable
Unsigned PE
System Location Discovery: System Language Discovery
Program crash
Suspicious use of SetWindowsHookEx
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-03-10 11:06
Signatures
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-03-10 11:06
Reported
2025-03-10 11:08
Platform
win7-20240903-en
Max time kernel
141s
Max time network
126s
Command Line
Signatures
DarkCloud
Darkcloud family
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2156 set thread context of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\sars.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2156 wrote to memory of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2156 wrote to memory of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2156 wrote to memory of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2156 wrote to memory of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2156 wrote to memory of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\sars.exe
"C:\Users\Admin\AppData\Local\Temp\sars.exe"
C:\Windows\SysWOW64\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\sars.exe"
Network
Files
memory/2156-6-0x0000000000670000-0x0000000000A70000-memory.dmp
memory/2760-7-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2760-9-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2760-12-0x0000000000400000-0x0000000000458000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-03-10 11:06
Reported
2025-03-10 11:08
Platform
win10v2004-20250217-en
Max time kernel
142s
Max time network
138s
Command Line
Signatures
DarkCloud
Darkcloud family
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3472 set thread context of 116 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\sars.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\sars.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3472 wrote to memory of 116 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 3472 wrote to memory of 116 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 3472 wrote to memory of 116 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 3472 wrote to memory of 116 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\sars.exe
"C:\Users\Admin\AppData\Local\Temp\sars.exe"
C:\Windows\SysWOW64\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\sars.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3472 -ip 3472
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3472 -s 604
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 20.189.173.27:443 | tcp |
Files
memory/3472-6-0x0000000001880000-0x0000000001C80000-memory.dmp
memory/116-7-0x0000000000400000-0x0000000000458000-memory.dmp
memory/116-9-0x0000000000400000-0x0000000000458000-memory.dmp
memory/116-12-0x0000000000400000-0x0000000000458000-memory.dmp