Analysis Overview
SHA256
429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0
Threat Level: Known bad
The file 429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0 was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar family
Quasar payload
Unsigned PE
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-01 08:51
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
2024-08-01 08:51
Reported
2024-08-01 08:54
Platform
win7-20240708-en
Max time kernel
148s
Max time network
154s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| 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\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1892 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe | C:\Windows\system32\schtasks.exe |
| PID 1892 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe | C:\Windows\system32\schtasks.exe |
| PID 1892 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe | C:\Windows\system32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe
"C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.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 |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp |
Files
memory/1892-0-0x000007FEF53D3000-0x000007FEF53D4000-memory.dmp
memory/1892-1-0x0000000000190000-0x00000000004B4000-memory.dmp
memory/1892-2-0x000007FEF53D0000-0x000007FEF5DBC000-memory.dmp
memory/1892-3-0x000007FEF53D3000-0x000007FEF53D4000-memory.dmp
memory/1892-4-0x000007FEF53D0000-0x000007FEF5DBC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-01 08:51
Reported
2024-08-01 08:54
Platform
win10v2004-20240730-en
Max time kernel
149s
Max time network
155s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| 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\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4000 wrote to memory of 2756 | N/A | C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4000 wrote to memory of 2756 | N/A | C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.exe
"C:\Users\Admin\AppData\Local\Temp\429d98e4f83301b513eab17210d91579428ac61e976e0df744d155f7f27f46b0.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 |
| N/A | 192.168.8.195:4782 | tcp | |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| N/A | 192.168.8.195:4782 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp | |
| US | 8.8.8.8:53 | 39.58.20.217.in-addr.arpa | udp |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp | |
| N/A | 192.168.8.195:4782 | tcp |
Files
memory/4000-0-0x00007FFFADC73000-0x00007FFFADC75000-memory.dmp
memory/4000-1-0x0000000000210000-0x0000000000534000-memory.dmp
memory/4000-2-0x00007FFFADC70000-0x00007FFFAE731000-memory.dmp
memory/4000-3-0x000000001D080000-0x000000001D0D0000-memory.dmp
memory/4000-4-0x000000001D190000-0x000000001D242000-memory.dmp
memory/4000-5-0x00007FFFADC73000-0x00007FFFADC75000-memory.dmp
memory/4000-6-0x00007FFFADC70000-0x00007FFFAE731000-memory.dmp