Analysis Overview
SHA256
6f890fdcdb5267b92b3b793ff8b17484bc1a6a4107a68f2b4282d386225b63f1
Threat Level: Known bad
The file l1yprr.ps1 was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar payload
Looks up external IP address via web service
Suspicious use of SetThreadContext
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-01-19 15:07
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-01-19 15:07
Reported
2023-01-19 15:09
Platform
win7-20220812-en
Max time kernel
42s
Max time network
45s
Command Line
Signatures
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Processes
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\l1yprr.ps1
Network
Files
memory/1584-54-0x000007FEFBE61000-0x000007FEFBE63000-memory.dmp
memory/1584-55-0x000007FEF44C0000-0x000007FEF4EE3000-memory.dmp
memory/1584-56-0x000007FEF3960000-0x000007FEF44BD000-memory.dmp
memory/1584-57-0x00000000026F4000-0x00000000026F7000-memory.dmp
memory/1584-58-0x00000000026F4000-0x00000000026F7000-memory.dmp
memory/1584-59-0x00000000026FB000-0x000000000271A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-01-19 15:07
Reported
2023-01-19 15:09
Platform
win10v2004-20221111-en
Max time kernel
107s
Max time network
141s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.ipify.org | N/A | N/A |
| N/A | api.ipify.org | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1980 set thread context of 2668 | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\l1yprr.ps1
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 8.8.8.8:53 | ghcc.duckdns.org | udp |
| N/A | 95.216.102.32:4782 | ghcc.duckdns.org | tcp |
| N/A | 8.8.8.8:53 | tools.keycdn.com | udp |
| N/A | 185.172.148.96:443 | tools.keycdn.com | tcp |
| N/A | 8.8.8.8:53 | api.ipify.org | udp |
| N/A | 64.185.227.155:443 | api.ipify.org | tcp |
| N/A | 52.182.143.211:443 | tcp | |
| N/A | 104.80.225.205:443 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 87.248.202.1:80 | tcp |
Files
memory/1980-132-0x00000276B52F0000-0x00000276B5312000-memory.dmp
memory/1980-133-0x00007FFA4A0B0000-0x00007FFA4AB71000-memory.dmp
memory/2668-135-0x000000000047E77E-mapping.dmp
memory/1980-136-0x00007FFA4A0B0000-0x00007FFA4AB71000-memory.dmp
memory/2668-137-0x0000000000500000-0x0000000000584000-memory.dmp
memory/2668-138-0x0000000004F20000-0x00000000054C4000-memory.dmp
memory/2668-139-0x0000000004A40000-0x0000000004AD2000-memory.dmp
memory/2668-140-0x0000000004CD0000-0x0000000004CDA000-memory.dmp
memory/404-141-0x0000000000000000-mapping.dmp
memory/2668-142-0x0000000006130000-0x0000000006748000-memory.dmp
memory/2668-143-0x0000000005BF0000-0x0000000005C40000-memory.dmp
memory/2668-144-0x0000000005E60000-0x0000000005F12000-memory.dmp
memory/2668-145-0x0000000006F00000-0x0000000006F66000-memory.dmp