Analysis Overview
SHA256
7939f7d7f256502832c6c5236e9ab25adb6b42070055ed61003dead58c545d14
Threat Level: Known bad
The file Client-built2.exe was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar payload
Quasar RAT
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-04 17:57
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
2024-01-04 17:57
Reported
2024-01-04 18:00
Platform
win10v2004-20231215-en
Max time kernel
149s
Max time network
153s
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-built2.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built2.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built2.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Client-built2.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built2.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.53.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.2.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 150.1.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 219.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 218.135.221.88.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 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.5.17.2.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 | 48.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.135.221.88.in-addr.arpa | udp |
Files
memory/5060-0-0x00000000009E0000-0x0000000000D04000-memory.dmp
memory/5060-1-0x00007FFDCAC20000-0x00007FFDCB6E1000-memory.dmp
memory/5060-2-0x000000001B870000-0x000000001B880000-memory.dmp
memory/5060-3-0x000000001C740000-0x000000001C790000-memory.dmp
memory/5060-4-0x000000001C850000-0x000000001C902000-memory.dmp
memory/5060-5-0x00007FFDCAC20000-0x00007FFDCB6E1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-04 17:57
Reported
2024-01-04 18:00
Platform
win11-20231215-en
Max time kernel
149s
Max time network
92s
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-built2.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built2.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built2.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Client-built2.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built2.exe"
Network
Files
memory/4128-0-0x0000000000050000-0x0000000000374000-memory.dmp
memory/4128-1-0x00007FFCDB7E0000-0x00007FFCDC2A2000-memory.dmp
memory/4128-2-0x0000000000BB0000-0x0000000000BC0000-memory.dmp
memory/4128-3-0x000000001B9C0000-0x000000001BA10000-memory.dmp
memory/4128-4-0x000000001BAD0000-0x000000001BB82000-memory.dmp
memory/4128-5-0x00007FFCDB7E0000-0x00007FFCDC2A2000-memory.dmp
memory/4128-6-0x0000000000BB0000-0x0000000000BC0000-memory.dmp