Analysis Overview
SHA256
aeeedbe5a56241a34a9761b5517a8648cadee5d583b2fe77d7beb1f030b0c9c3
Threat Level: Known bad
The file Client-built.exe was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar family
Quasar payload
Checks computer location settings
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Runs ping.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-31 17:26
Signatures
Quasar family
Quasar payload
| 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
2024-07-31 17:26
Reported
2024-07-31 17:29
Platform
win7-20240705-en
Max time kernel
144s
Max time network
149s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
Network
| Country | Destination | Domain | Proto |
| US | 147.185.221.20:18563 | tcp | |
| US | 147.185.221.20:9835 | tcp | |
| US | 147.185.221.20:18563 | tcp | |
| US | 147.185.221.20:9835 | tcp | |
| US | 147.185.221.20:18563 | tcp | |
| US | 147.185.221.20:9835 | tcp | |
| US | 147.185.221.20:18563 | tcp | |
| US | 147.185.221.20:9835 | tcp | |
| US | 147.185.221.20:18563 | tcp | |
| US | 147.185.221.20:9835 | tcp | |
| US | 147.185.221.20:18563 | tcp |
Files
memory/2440-0-0x000007FEF5E93000-0x000007FEF5E94000-memory.dmp
memory/2440-1-0x00000000012D0000-0x00000000015F4000-memory.dmp
memory/2440-2-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp
memory/2440-3-0x000007FEF5E93000-0x000007FEF5E94000-memory.dmp
memory/2440-4-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-31 17:26
Reported
2024-07-31 17:33
Platform
win10v2004-20240730-en
Max time kernel
329s
Max time network
331s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-195445723-368091294-1661186673-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4276 wrote to memory of 620 | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | C:\Windows\system32\cmd.exe |
| PID 4276 wrote to memory of 620 | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | C:\Windows\system32\cmd.exe |
| PID 620 wrote to memory of 2892 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\chcp.com |
| PID 620 wrote to memory of 2892 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\chcp.com |
| PID 620 wrote to memory of 1760 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\PING.EXE |
| PID 620 wrote to memory of 1760 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\PING.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ofwAbWfkKGAU.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 147.185.221.20:18563 | tcp | |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ipwho.is | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
| US | 8.8.8.8:53 | 20.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 96.136.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 147.185.221.20:9835 | tcp | |
| US | 8.8.8.8:53 | 121.170.16.2.in-addr.arpa | udp |
| US | 147.185.221.20:18563 | tcp | |
| US | 8.8.8.8:53 | 138.136.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 215.143.182.52.in-addr.arpa | udp |
Files
memory/4276-0-0x00007FFE1F5C3000-0x00007FFE1F5C5000-memory.dmp
memory/4276-1-0x0000000000BB0000-0x0000000000ED4000-memory.dmp
memory/4276-2-0x00007FFE1F5C0000-0x00007FFE20081000-memory.dmp
memory/4276-3-0x000000001C5D0000-0x000000001C620000-memory.dmp
memory/4276-4-0x000000001C6E0000-0x000000001C792000-memory.dmp
memory/4276-5-0x000000001C5A0000-0x000000001C5B2000-memory.dmp
memory/4276-6-0x000000001C660000-0x000000001C69C000-memory.dmp
memory/4276-7-0x00007FFE1F5C3000-0x00007FFE1F5C5000-memory.dmp
memory/4276-8-0x00007FFE1F5C0000-0x00007FFE20081000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ofwAbWfkKGAU.bat
| MD5 | cb3a40f30bc0a8677abbdb3d6a4f9d50 |
| SHA1 | 1f2df8bfae3612f962f250fe9a6ebbab1725f975 |
| SHA256 | 677707cc52528faf159d3b77b11046b3f85edb83f6cdca28133bfe917ad3a0b6 |
| SHA512 | 39d84f8795f0465dcaabe83b5eb3e526b0f03bf419a9648f4bea394172e30bc91889fb2c1fd24c04f810783300f868157c2734999c11bbab7c5bddd2328cb6da |
memory/4276-14-0x00007FFE1F5C0000-0x00007FFE20081000-memory.dmp