Analysis Overview
SHA256
250ed85363ae1d6dd070a462f1ac25a8a74c5e1380359d85eb082b0eaf4bb8b1
Threat Level: Known bad
The file rab.exe was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar family
Quasar payload
Executes dropped EXE
Drops file in System32 directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of SetWindowsHookEx
Scheduled Task/Job: Scheduled Task
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-13 19:29
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
2024-11-13 19:29
Reported
2024-11-13 19:31
Platform
win7-20240708-en
Max time kernel
144s
Max time network
148s
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:\Windows\system32\SubDir\system32.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\SubDir\system32.exe | C:\Users\Admin\AppData\Local\Temp\rab.exe | N/A |
| File opened for modification | C:\Windows\system32\SubDir\system32.exe | C:\Users\Admin\AppData\Local\Temp\rab.exe | N/A |
| File opened for modification | C:\Windows\system32\SubDir | C:\Users\Admin\AppData\Local\Temp\rab.exe | N/A |
| File opened for modification | C:\Windows\system32\SubDir\system32.exe | C:\Windows\system32\SubDir\system32.exe | N/A |
| File opened for modification | C:\Windows\system32\SubDir | C:\Windows\system32\SubDir\system32.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\rab.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\SubDir\system32.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\SubDir\system32.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\rab.exe
"C:\Users\Admin\AppData\Local\Temp\rab.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Trusted Installer" /sc ONLOGON /tr "C:\Windows\system32\SubDir\system32.exe" /rl HIGHEST /f
C:\Windows\system32\SubDir\system32.exe
"C:\Windows\system32\SubDir\system32.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Trusted Installer" /sc ONLOGON /tr "C:\Windows\system32\SubDir\system32.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rab1.premium-televizor.net | udp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
Files
memory/2000-0-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp
memory/2000-1-0x0000000000BD0000-0x0000000000EF4000-memory.dmp
memory/2000-2-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp
C:\Windows\System32\SubDir\system32.exe
| MD5 | 20290ac43ac1bed38b4ba6a9c8a0563c |
| SHA1 | 8ba324cb8ef2fd31ff6e5d7395ed33178141a28e |
| SHA256 | 250ed85363ae1d6dd070a462f1ac25a8a74c5e1380359d85eb082b0eaf4bb8b1 |
| SHA512 | ef2f449cbbbb9e5cf9ae3af3406c80af4422cb0b65d690d28807da02e8ad7416831f80ce63365ce12ee730c31c4ce18d787673838cf3c3c3d102de11aa53111e |
memory/2000-8-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp
memory/2384-11-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp
memory/2384-10-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp
memory/2384-9-0x0000000001180000-0x00000000014A4000-memory.dmp
memory/2384-12-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 19:29
Reported
2024-11-13 19:31
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
156s
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:\Windows\system32\SubDir\system32.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\SubDir\system32.exe | C:\Users\Admin\AppData\Local\Temp\rab.exe | N/A |
| File opened for modification | C:\Windows\system32\SubDir\system32.exe | C:\Users\Admin\AppData\Local\Temp\rab.exe | N/A |
| File opened for modification | C:\Windows\system32\SubDir | C:\Users\Admin\AppData\Local\Temp\rab.exe | N/A |
| File opened for modification | C:\Windows\system32\SubDir\system32.exe | C:\Windows\system32\SubDir\system32.exe | N/A |
| File opened for modification | C:\Windows\system32\SubDir | C:\Windows\system32\SubDir\system32.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\rab.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\SubDir\system32.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\SubDir\system32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5100 wrote to memory of 3520 | N/A | C:\Users\Admin\AppData\Local\Temp\rab.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 5100 wrote to memory of 3520 | N/A | C:\Users\Admin\AppData\Local\Temp\rab.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 5100 wrote to memory of 5068 | N/A | C:\Users\Admin\AppData\Local\Temp\rab.exe | C:\Windows\system32\SubDir\system32.exe |
| PID 5100 wrote to memory of 5068 | N/A | C:\Users\Admin\AppData\Local\Temp\rab.exe | C:\Windows\system32\SubDir\system32.exe |
| PID 5068 wrote to memory of 3892 | N/A | C:\Windows\system32\SubDir\system32.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 5068 wrote to memory of 3892 | N/A | C:\Windows\system32\SubDir\system32.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\rab.exe
"C:\Users\Admin\AppData\Local\Temp\rab.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Trusted Installer" /sc ONLOGON /tr "C:\Windows\system32\SubDir\system32.exe" /rl HIGHEST /f
C:\Windows\system32\SubDir\system32.exe
"C:\Windows\system32\SubDir\system32.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Trusted Installer" /sc ONLOGON /tr "C:\Windows\system32\SubDir\system32.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rab1.premium-televizor.net | udp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | tcp |
| DE | 192.121.22.243:18651 | rab1.premium-televizor.net | 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 | 243.22.121.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
Files
memory/5100-0-0x00007FFD9D8C3000-0x00007FFD9D8C5000-memory.dmp
memory/5100-1-0x0000000000250000-0x0000000000574000-memory.dmp
memory/5100-2-0x00007FFD9D8C0000-0x00007FFD9E381000-memory.dmp
C:\Windows\system32\SubDir\system32.exe
| MD5 | 20290ac43ac1bed38b4ba6a9c8a0563c |
| SHA1 | 8ba324cb8ef2fd31ff6e5d7395ed33178141a28e |
| SHA256 | 250ed85363ae1d6dd070a462f1ac25a8a74c5e1380359d85eb082b0eaf4bb8b1 |
| SHA512 | ef2f449cbbbb9e5cf9ae3af3406c80af4422cb0b65d690d28807da02e8ad7416831f80ce63365ce12ee730c31c4ce18d787673838cf3c3c3d102de11aa53111e |
memory/5068-10-0x00007FFD9D8C0000-0x00007FFD9E381000-memory.dmp
memory/5100-9-0x00007FFD9D8C0000-0x00007FFD9E381000-memory.dmp
memory/5068-11-0x00007FFD9D8C0000-0x00007FFD9E381000-memory.dmp
memory/5068-12-0x0000000003120000-0x0000000003170000-memory.dmp
memory/5068-13-0x000000001C4F0000-0x000000001C5A2000-memory.dmp
memory/5068-14-0x00007FFD9D8C0000-0x00007FFD9E381000-memory.dmp
memory/5068-15-0x0000000003170000-0x0000000003182000-memory.dmp
memory/5068-16-0x000000001BBC0000-0x000000001BBFC000-memory.dmp