Analysis Overview
SHA256
3c55294e7636d99fb91c92a7dbfa1f5be3ad0e9774dbdcaca05be1c8f0f786fa
Threat Level: Known bad
The file b6d90e592d3532767d011392c389ae46 was found to be: Known bad.
Malicious Activity Summary
Remcos
Remcos family
Obfuscated with Agile.Net obfuscator
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-03-06 07:25
Signatures
Remcos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-06 07:25
Reported
2024-03-06 07:27
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
156s
Command Line
Signatures
Remcos
Obfuscated with Agile.Net obfuscator
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe
"C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2708 -ip 2708
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 1236
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 211.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.173.189.20.in-addr.arpa | udp |
Files
memory/2708-0-0x0000000000CC0000-0x0000000000D30000-memory.dmp
memory/2708-1-0x00000000747B0000-0x0000000074F60000-memory.dmp
memory/2708-2-0x00000000014C0000-0x00000000014D6000-memory.dmp
memory/2708-3-0x0000000005740000-0x0000000005750000-memory.dmp
memory/2708-4-0x00000000064E0000-0x0000000006A84000-memory.dmp
memory/2708-5-0x0000000005730000-0x0000000005738000-memory.dmp
memory/2708-6-0x0000000006030000-0x00000000060C2000-memory.dmp
memory/2708-7-0x00000000747B0000-0x0000000074F60000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-06 07:25
Reported
2024-03-06 07:28
Platform
win7-20240221-en
Max time kernel
121s
Max time network
127s
Command Line
Signatures
Remcos
Obfuscated with Agile.Net obfuscator
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1988 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1988 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1988 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1988 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe
"C:\Users\Admin\AppData\Local\Temp\b6d90e592d3532767d011392c389ae46.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 784
Network
Files
memory/1988-0-0x0000000000990000-0x0000000000A00000-memory.dmp
memory/1988-1-0x0000000074640000-0x0000000074D2E000-memory.dmp
memory/1988-2-0x0000000000360000-0x0000000000376000-memory.dmp
memory/1988-3-0x00000000004E0000-0x00000000004E8000-memory.dmp
memory/1988-4-0x0000000074640000-0x0000000074D2E000-memory.dmp