Analysis Overview
SHA256
36e6a3dd4bfc86c4e707f43cd9515707442d6c424b7661cb41766cfdca322522
Threat Level: Known bad
The file 9c682f5b5000cd003e76530706955a72.exe was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar family
Quasar payload
Executes dropped EXE
Unsigned PE
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-04 12:13
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: behavioral2
Detonation Overview
Submitted
2024-08-04 12:13
Reported
2024-08-04 12:15
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
140s
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\svchost.exe | N/A |
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\9c682f5b5000cd003e76530706955a72.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 408 wrote to memory of 4344 | N/A | C:\Users\Admin\AppData\Local\Temp\9c682f5b5000cd003e76530706955a72.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 408 wrote to memory of 4344 | N/A | C:\Users\Admin\AppData\Local\Temp\9c682f5b5000cd003e76530706955a72.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 408 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\9c682f5b5000cd003e76530706955a72.exe | C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe |
| PID 408 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\9c682f5b5000cd003e76530706955a72.exe | C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe |
| PID 2720 wrote to memory of 5096 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2720 wrote to memory of 5096 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\9c682f5b5000cd003e76530706955a72.exe
"C:\Users\Admin\AppData\Local\Temp\9c682f5b5000cd003e76530706955a72.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe
"C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| CA | 51.222.21.20:4782 | tcp | |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| CA | 51.222.21.20:4782 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| CA | 51.222.21.20:4782 | tcp | |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| CA | 51.222.21.20:4782 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| CA | 51.222.21.20:4782 | tcp | |
| CA | 51.222.21.20:4782 | tcp | |
| CA | 51.222.21.20:4782 | tcp |
Files
memory/408-0-0x00007FF810C13000-0x00007FF810C15000-memory.dmp
memory/408-1-0x0000000000AB0000-0x0000000000DD4000-memory.dmp
memory/408-2-0x00007FF810C10000-0x00007FF8116D1000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe
| MD5 | 9c682f5b5000cd003e76530706955a72 |
| SHA1 | 1a69da76e05d114a317342dae3e9c7b10f107d43 |
| SHA256 | 36e6a3dd4bfc86c4e707f43cd9515707442d6c424b7661cb41766cfdca322522 |
| SHA512 | 33bd859542e1ae74d8c81427af44022cb91861dc02ee4202505f1e010487d06cb27e1aa83be6af17be4e2d8973289595b2ebe9bdf99a187956662df30b6dc88f |
memory/408-9-0x00007FF810C10000-0x00007FF8116D1000-memory.dmp
memory/2720-10-0x00007FF810C10000-0x00007FF8116D1000-memory.dmp
memory/2720-11-0x000000001D450000-0x000000001D4A0000-memory.dmp
memory/2720-12-0x000000001D560000-0x000000001D612000-memory.dmp
memory/2720-13-0x00007FF810C10000-0x00007FF8116D1000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-04 12:13
Reported
2024-08-04 12:15
Platform
win7-20240729-en
Max time kernel
150s
Max time network
135s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe | N/A |
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\9c682f5b5000cd003e76530706955a72.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\9c682f5b5000cd003e76530706955a72.exe
"C:\Users\Admin\AppData\Local\Temp\9c682f5b5000cd003e76530706955a72.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe
"C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| CA | 51.222.21.20:4782 | tcp | |
| CA | 51.222.21.20:4782 | tcp | |
| CA | 51.222.21.20:4782 | tcp | |
| CA | 51.222.21.20:4782 | tcp | |
| CA | 51.222.21.20:4782 | tcp | |
| CA | 51.222.21.20:4782 | tcp | |
| CA | 51.222.21.20:4782 | tcp |
Files
memory/2548-0-0x000007FEF5643000-0x000007FEF5644000-memory.dmp
memory/2548-1-0x0000000000B90000-0x0000000000EB4000-memory.dmp
memory/2548-2-0x000007FEF5640000-0x000007FEF602C000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe
| MD5 | 9c682f5b5000cd003e76530706955a72 |
| SHA1 | 1a69da76e05d114a317342dae3e9c7b10f107d43 |
| SHA256 | 36e6a3dd4bfc86c4e707f43cd9515707442d6c424b7661cb41766cfdca322522 |
| SHA512 | 33bd859542e1ae74d8c81427af44022cb91861dc02ee4202505f1e010487d06cb27e1aa83be6af17be4e2d8973289595b2ebe9bdf99a187956662df30b6dc88f |
memory/2548-9-0x000007FEF5640000-0x000007FEF602C000-memory.dmp
memory/1388-8-0x00000000003F0000-0x0000000000714000-memory.dmp
memory/1388-10-0x000007FEF5640000-0x000007FEF602C000-memory.dmp
memory/1388-11-0x000007FEF5640000-0x000007FEF602C000-memory.dmp
memory/1388-12-0x000007FEF5640000-0x000007FEF602C000-memory.dmp