Analysis Overview
SHA256
e63b41bfdd3a89b6ebcfc05db158fdc399dbc081e49b01498831a62df34defc3
Threat Level: Known bad
The file Loader.exe was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar RAT
Quasar payload
Executes dropped EXE
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Scheduled Task/Job: Scheduled Task
Suspicious use of SetWindowsHookEx
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-13 10:00
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
2024-12-13 10:00
Reported
2024-12-13 10:02
Platform
win7-20240903-en
Max time kernel
148s
Max time network
149s
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:\Users\Admin\AppData\Roaming\SubDir\Client.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\Loader.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\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "SubStart" /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 "SubStart" /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 | Dystopian-62863.portmap.host | udp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
Files
memory/2108-0-0x000007FEF56D3000-0x000007FEF56D4000-memory.dmp
memory/2108-1-0x0000000000240000-0x0000000000564000-memory.dmp
memory/2108-2-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | e9a138d8c5ab2cccc8bf9976f66d30c8 |
| SHA1 | e996894168f0d4e852162d1290250dfa986310f8 |
| SHA256 | e63b41bfdd3a89b6ebcfc05db158fdc399dbc081e49b01498831a62df34defc3 |
| SHA512 | 5982fc759c8b1121ab5befaac53e1521931f06d276140195fa1fcbcd1069f546253e366ef4cc37245b3bc2ed60c4b8d0583f133a1264efd77938adf456a08ccc |
memory/2992-9-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp
memory/2108-8-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp
memory/2992-10-0x0000000000040000-0x0000000000364000-memory.dmp
memory/2992-11-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp
memory/2992-12-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-13 10:00
Reported
2024-12-13 10:02
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
141s
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:\Users\Admin\AppData\Roaming\SubDir\Client.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\Loader.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 2920 wrote to memory of 4884 | N/A | C:\Users\Admin\AppData\Local\Temp\Loader.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2920 wrote to memory of 4884 | N/A | C:\Users\Admin\AppData\Local\Temp\Loader.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2920 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\Loader.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 2920 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\Loader.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 3012 wrote to memory of 440 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 3012 wrote to memory of 440 | 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\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "SubStart" /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 "SubStart" /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 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | Dystopian-62863.portmap.host | udp |
| DE | 193.161.193.99:62863 | Dystopian-62863.portmap.host | tcp |
| US | 8.8.8.8:53 | 99.193.161.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ipwho.is | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 106.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
Files
memory/2920-0-0x00007FFB1AC13000-0x00007FFB1AC15000-memory.dmp
memory/2920-1-0x0000000000CB0000-0x0000000000FD4000-memory.dmp
memory/2920-2-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | e9a138d8c5ab2cccc8bf9976f66d30c8 |
| SHA1 | e996894168f0d4e852162d1290250dfa986310f8 |
| SHA256 | e63b41bfdd3a89b6ebcfc05db158fdc399dbc081e49b01498831a62df34defc3 |
| SHA512 | 5982fc759c8b1121ab5befaac53e1521931f06d276140195fa1fcbcd1069f546253e366ef4cc37245b3bc2ed60c4b8d0583f133a1264efd77938adf456a08ccc |
memory/3012-9-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp
memory/2920-10-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp
memory/3012-11-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp
memory/3012-12-0x000000001BDD0000-0x000000001BE20000-memory.dmp
memory/3012-13-0x000000001C690000-0x000000001C742000-memory.dmp
memory/3012-16-0x000000001BE40000-0x000000001BE52000-memory.dmp
memory/3012-17-0x000000001C5D0000-0x000000001C60C000-memory.dmp
memory/3012-18-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp
memory/3012-19-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp
memory/3012-21-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp