Analysis Overview
SHA256
1fea532c75a33209f094f835261b4f579613a7b2ece7f046a11309d34537f8d5
Threat Level: Known bad
The file tmp was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar payload
Quasar RAT
Unsigned PE
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-08 20:52
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
2023-12-08 20:52
Reported
2023-12-08 20:55
Platform
win7-20231023-en
Max time kernel
148s
Max time network
152s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Creates scheduled task(s)
| 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\tmp.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2436 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | C:\Windows\system32\schtasks.exe |
| PID 2436 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | C:\Windows\system32\schtasks.exe |
| PID 2436 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | C:\Windows\system32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Office365" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Office365.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp |
Files
memory/2436-0-0x0000000001210000-0x0000000001534000-memory.dmp
memory/2436-1-0x000007FEF5750000-0x000007FEF613C000-memory.dmp
memory/2436-2-0x0000000000B40000-0x0000000000BC0000-memory.dmp
memory/2436-3-0x000007FEF5750000-0x000007FEF613C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-08 20:52
Reported
2023-12-08 20:55
Platform
win10v2004-20231127-en
Max time kernel
150s
Max time network
152s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Creates scheduled task(s)
| 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\tmp.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2028 wrote to memory of 1904 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2028 wrote to memory of 1904 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Office365" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Office365.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.85.100.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 226.173.246.72.in-addr.arpa | udp |
| ZA | 41.216.183.22:4782 | tcp | |
| US | 8.8.8.8:53 | 22.183.216.41.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 | 200.197.79.204.in-addr.arpa | udp |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| ZA | 41.216.183.22:4782 | tcp | |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| US | 8.8.8.8:53 | 200.85.100.95.in-addr.arpa | udp |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| US | 8.8.8.8:53 | 13.173.189.20.in-addr.arpa | udp |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp | |
| ZA | 41.216.183.22:4782 | tcp |
Files
memory/2028-0-0x0000000000D90000-0x00000000010B4000-memory.dmp
memory/2028-1-0x00007FFBA5D20000-0x00007FFBA67E1000-memory.dmp
memory/2028-2-0x000000001BDC0000-0x000000001BDD0000-memory.dmp
memory/2028-3-0x000000001BD40000-0x000000001BD90000-memory.dmp
memory/2028-4-0x000000001C880000-0x000000001C932000-memory.dmp
memory/2028-5-0x00007FFBA5D20000-0x00007FFBA67E1000-memory.dmp
memory/2028-6-0x000000001BDC0000-0x000000001BDD0000-memory.dmp