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
System Location Discovery: System Language Discovery
Unsigned PE
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 11:20
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 11:20
Reported
2025-03-10 11:23
Platform
win7-20240903-en
Max time kernel
119s
Max time network
124s
Command Line
Signatures
DarkCloud
Darkcloud family
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2804 set thread context of 2680 | 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 |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2804 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2804 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2804 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2804 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2804 wrote to memory of 2680 | 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/2804-6-0x0000000000B70000-0x0000000000F70000-memory.dmp
memory/2680-7-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2680-9-0x0000000000450000-0x0000000000450000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-03-10 11:20
Reported
2025-03-10 11:23
Platform
win10v2004-20250217-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
DarkCloud
Darkcloud family
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3644 set thread context of 2020 | 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 3644 wrote to memory of 2020 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 3644 wrote to memory of 2020 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 3644 wrote to memory of 2020 | N/A | C:\Users\Admin\AppData\Local\Temp\sars.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 3644 wrote to memory of 2020 | 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
| 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 |
Files
memory/3644-6-0x00000000011E0000-0x00000000015E0000-memory.dmp
memory/2020-7-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2020-9-0x0000000000400000-0x0000000000458000-memory.dmp
memory/3644-12-0x00000000011E0000-0x00000000015E0000-memory.dmp
memory/2020-13-0x0000000000400000-0x0000000000458000-memory.dmp