Analysis Overview
SHA256
a9e84520f8f8fd1383b54b297044ed2ca34e23172c7b6719a9185527b6fa194c
Threat Level: Known bad
The file 2386d1e1a35e51b0c869655580ab6431.exe was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar payload
Quasar RAT
Executes dropped EXE
Unsigned PE
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-15 09:13
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
2024-03-15 09:13
Reported
2024-03-15 09:16
Platform
win7-20240221-en
Max time kernel
147s
Max time network
150s
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 |
| 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 |
Creates scheduled task(s)
| 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\2386d1e1a35e51b0c869655580ab6431.exe | N/A |
| Token: SeDebugPrivilege | 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\2386d1e1a35e51b0c869655580ab6431.exe
"C:\Users\Admin\AppData\Local\Temp\2386d1e1a35e51b0c869655580ab6431.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 | www.exiles.site | udp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
Files
memory/2176-0-0x0000000000E70000-0x0000000001194000-memory.dmp
memory/2176-1-0x000007FEF5E60000-0x000007FEF684C000-memory.dmp
memory/2176-2-0x000000001B1B0000-0x000000001B230000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | 16015fbd05ec4aa780ac649ecb3f00fd |
| SHA1 | 7bf57070a7d0e29a78e71f6dd6dc7d084f98a8f3 |
| SHA256 | 5e626d87f6b38d573e4a12250e440f16d42600f76788077693833976dbee22c7 |
| SHA512 | fa3f601e0f9efaa473f70ac7862d851d2747911dc0f0edf15067f0a0326c60c86e5e0a1eb1d4cfc3dccd4602dfffc2621a55a38b1a9d859f8874e70dd4226756 |
memory/1104-8-0x0000000000310000-0x0000000000634000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | 2386d1e1a35e51b0c869655580ab6431 |
| SHA1 | 44de49d3050793f1cea18a62fc7649c96deebaa7 |
| SHA256 | a9e84520f8f8fd1383b54b297044ed2ca34e23172c7b6719a9185527b6fa194c |
| SHA512 | 69d99d6d9d85c83f3d5029cec04abfddc54142044d39078799ba77fcec2715d41bbf4b114981fa697a8ee1afd9aa796733897e6d337ef1941e72d88631da5946 |
memory/1104-9-0x000007FEF5E60000-0x000007FEF684C000-memory.dmp
memory/1104-10-0x000000001B040000-0x000000001B0C0000-memory.dmp
memory/2176-11-0x000007FEF5E60000-0x000007FEF684C000-memory.dmp
memory/1104-12-0x000007FEF5E60000-0x000007FEF684C000-memory.dmp
memory/1104-13-0x000000001B040000-0x000000001B0C0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-15 09:13
Reported
2024-03-15 09:15
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
150s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Creates scheduled task(s)
| 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\2386d1e1a35e51b0c869655580ab6431.exe | N/A |
| Token: SeDebugPrivilege | 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 3092 wrote to memory of 212 | N/A | C:\Users\Admin\AppData\Local\Temp\2386d1e1a35e51b0c869655580ab6431.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 3092 wrote to memory of 212 | N/A | C:\Users\Admin\AppData\Local\Temp\2386d1e1a35e51b0c869655580ab6431.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 3092 wrote to memory of 2396 | N/A | C:\Users\Admin\AppData\Local\Temp\2386d1e1a35e51b0c869655580ab6431.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 3092 wrote to memory of 2396 | N/A | C:\Users\Admin\AppData\Local\Temp\2386d1e1a35e51b0c869655580ab6431.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 2396 wrote to memory of 2740 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2396 wrote to memory of 2740 | 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\2386d1e1a35e51b0c869655580ab6431.exe
"C:\Users\Admin\AppData\Local\Temp\2386d1e1a35e51b0c869655580ab6431.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 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.exiles.site | udp |
| US | 192.151.244.144:14782 | www.exiles.site | tcp |
| US | 8.8.8.8:53 | ipwho.is | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.244.151.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.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 | 8.8.8.8:53 | udp |
Files
memory/3092-0-0x00000000003F0000-0x0000000000714000-memory.dmp
memory/3092-1-0x00007FFCA6780000-0x00007FFCA7241000-memory.dmp
memory/3092-2-0x000000001B2F0000-0x000000001B300000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | 2386d1e1a35e51b0c869655580ab6431 |
| SHA1 | 44de49d3050793f1cea18a62fc7649c96deebaa7 |
| SHA256 | a9e84520f8f8fd1383b54b297044ed2ca34e23172c7b6719a9185527b6fa194c |
| SHA512 | 69d99d6d9d85c83f3d5029cec04abfddc54142044d39078799ba77fcec2715d41bbf4b114981fa697a8ee1afd9aa796733897e6d337ef1941e72d88631da5946 |
memory/3092-9-0x00007FFCA6780000-0x00007FFCA7241000-memory.dmp
memory/2396-10-0x00007FFCA6780000-0x00007FFCA7241000-memory.dmp
memory/2396-11-0x000000001BA30000-0x000000001BA80000-memory.dmp
memory/2396-12-0x000000001C2B0000-0x000000001C362000-memory.dmp
memory/2396-15-0x000000001BAB0000-0x000000001BAC2000-memory.dmp
memory/2396-16-0x000000001C230000-0x000000001C26C000-memory.dmp
memory/2396-17-0x00007FFCA6780000-0x00007FFCA7241000-memory.dmp