Analysis Overview
SHA256
ef33af6a7f06d5dae8dd1da0412b795e1222bfd6ce447614c5cac912bcd3374d
Threat Level: Known bad
The file Payload.exe was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar family
Quasar payload
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Uses Task Scheduler COM API
Suspicious use of SetWindowsHookEx
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-13 20:59
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
2024-12-13 20:59
Reported
2024-12-13 21:01
Platform
win7-20240903-en
Max time kernel
147s
Max time network
147s
Command Line
Signatures
Quasar RAT
Quasar family
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Payload.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Payload.exe
"C:\Users\Admin\AppData\Local\Temp\Payload.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ukrainian.zapto.org | udp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| US | 8.8.8.8:53 | ukrainian.zapto.org | udp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| US | 8.8.8.8:53 | ukrainian.zapto.org | udp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | tcp |
Files
memory/2960-0-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp
memory/2960-1-0x00000000003C0000-0x00000000006E4000-memory.dmp
memory/2960-2-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | b0f4ccdba9627855a58b6f2f1673a3da |
| SHA1 | bb39bbd34084efdf4d0a994fba6419819d68c766 |
| SHA256 | ef33af6a7f06d5dae8dd1da0412b795e1222bfd6ce447614c5cac912bcd3374d |
| SHA512 | 7af9f641349e406b4d4079580247e72e566ee142028086225b0469ca545e064d365d4aad01d261711b7692a1c0130c7af9f875a56b026d39cb4ed86d2844c2b6 |
memory/2968-8-0x00000000012F0000-0x0000000001614000-memory.dmp
memory/2968-9-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp
memory/2968-10-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp
memory/2960-7-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp
memory/2968-11-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-13 20:59
Reported
2024-12-13 21:01
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Quasar RAT
Quasar family
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Payload.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2052 wrote to memory of 3860 | N/A | C:\Users\Admin\AppData\Local\Temp\Payload.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2052 wrote to memory of 3860 | N/A | C:\Users\Admin\AppData\Local\Temp\Payload.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2052 wrote to memory of 3284 | N/A | C:\Users\Admin\AppData\Local\Temp\Payload.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 2052 wrote to memory of 3284 | N/A | C:\Users\Admin\AppData\Local\Temp\Payload.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 3284 wrote to memory of 1252 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 3284 wrote to memory of 1252 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Payload.exe
"C:\Users\Admin\AppData\Local\Temp\Payload.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ukrainian.zapto.org | udp |
| FR | 51.91.146.93:5552 | ukrainian.zapto.org | 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 | 93.146.91.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 107.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
Files
memory/2052-0-0x00007FFA2AAA3000-0x00007FFA2AAA5000-memory.dmp
memory/2052-1-0x0000000000690000-0x00000000009B4000-memory.dmp
memory/2052-2-0x00007FFA2AAA0000-0x00007FFA2B561000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | b0f4ccdba9627855a58b6f2f1673a3da |
| SHA1 | bb39bbd34084efdf4d0a994fba6419819d68c766 |
| SHA256 | ef33af6a7f06d5dae8dd1da0412b795e1222bfd6ce447614c5cac912bcd3374d |
| SHA512 | 7af9f641349e406b4d4079580247e72e566ee142028086225b0469ca545e064d365d4aad01d261711b7692a1c0130c7af9f875a56b026d39cb4ed86d2844c2b6 |
memory/2052-8-0x00007FFA2AAA0000-0x00007FFA2B561000-memory.dmp
memory/3284-9-0x00007FFA2AAA0000-0x00007FFA2B561000-memory.dmp
memory/3284-10-0x00007FFA2AAA0000-0x00007FFA2B561000-memory.dmp
memory/3284-11-0x000000001DE70000-0x000000001DEC0000-memory.dmp
memory/3284-12-0x000000001DF80000-0x000000001E032000-memory.dmp
memory/3284-15-0x000000001DF00000-0x000000001DF12000-memory.dmp
memory/3284-16-0x000000001E780000-0x000000001E7BC000-memory.dmp
memory/3284-17-0x00007FFA2AAA0000-0x00007FFA2B561000-memory.dmp