Analysis Overview
SHA256
01b172d69a0ce6bdf3f29f89b58e18474d07d7c57f22ac4633fdb2cfa794cb6c
Threat Level: Known bad
The file Client-built.exe was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar RAT
Quasar payload
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Runs ping.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-05 04:23
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: behavioral2
Detonation Overview
Submitted
2024-08-05 04:23
Reported
2024-08-05 04:26
Platform
win10v2004-20240802-en
Max time kernel
95s
Max time network
97s
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-1-5-21-656926755-4116854191-210765258-1000\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 |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.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 |
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 |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4912 wrote to memory of 1060 | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | C:\Windows\system32\cmd.exe |
| PID 4912 wrote to memory of 1060 | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | C:\Windows\system32\cmd.exe |
| PID 1060 wrote to memory of 964 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\chcp.com |
| PID 1060 wrote to memory of 964 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\chcp.com |
| PID 1060 wrote to memory of 3124 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\PING.EXE |
| PID 1060 wrote to memory of 3124 | 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\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x45c 0x48c
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KuBhliT3xyl5.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 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 147.185.221.20:18563 | tcp | |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | ipwho.is | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/4912-0-0x00007FFCBAE03000-0x00007FFCBAE05000-memory.dmp
memory/4912-1-0x0000000000510000-0x0000000000834000-memory.dmp
memory/4912-2-0x00007FFCBAE00000-0x00007FFCBB8C1000-memory.dmp
memory/4912-3-0x000000001BF20000-0x000000001BF70000-memory.dmp
memory/4912-4-0x000000001C030000-0x000000001C0E2000-memory.dmp
memory/4912-5-0x000000001BEF0000-0x000000001BF02000-memory.dmp
memory/4912-6-0x000000001BFB0000-0x000000001BFEC000-memory.dmp
memory/4912-7-0x00007FFCBAE03000-0x00007FFCBAE05000-memory.dmp
memory/4912-8-0x00007FFCBAE00000-0x00007FFCBB8C1000-memory.dmp
memory/4912-9-0x000000001CCE0000-0x000000001CD8A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\KuBhliT3xyl5.bat
| MD5 | 180e19ffa6762e8abd5db275adedb487 |
| SHA1 | 5d5b8245ba751b2e4b2f9b0b80ecfae4d34a63d4 |
| SHA256 | 34e014299a2f6344c12c2e8232e3bc5de7879f5f8afd2ed6f0b584cfc3a6c0fa |
| SHA512 | 2669d317223e2205121ae94af3cc0f05da0a56e24d83fa50ed3ba139e7eb08bcd781916b6128e638f21b25dbfd28ad0258b48bc8a67f4588f3a5f25703df28dc |
memory/4912-18-0x00007FFCBAE00000-0x00007FFCBB8C1000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-05 04:23
Reported
2024-08-05 04:26
Platform
win7-20240704-en
Max time kernel
133s
Max time network
146s
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 |
Files
memory/2468-0-0x000007FEF4F23000-0x000007FEF4F24000-memory.dmp
memory/2468-1-0x00000000001F0000-0x0000000000514000-memory.dmp
memory/2468-2-0x000007FEF4F20000-0x000007FEF590C000-memory.dmp
memory/2468-3-0x000007FEF4F23000-0x000007FEF4F24000-memory.dmp
memory/2468-4-0x000007FEF4F20000-0x000007FEF590C000-memory.dmp