Analysis Overview
SHA256
03bc2c340a1081e1521a5c4b92c38756f4de234ac1b1a578556d83737972e343
Threat Level: Known bad
The file PermWoofer.exe was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar family
Quasar payload
Executes dropped EXE
Unsigned PE
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Scheduled Task/Job: Scheduled Task
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-29 23:25
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
2024-10-29 23:25
Reported
2024-10-29 23:28
Platform
win10v2004-20241007-en
Max time kernel
134s
Max time network
150s
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\PermWoofer.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 4264 wrote to memory of 1416 | N/A | C:\Users\Admin\AppData\Local\Temp\PermWoofer.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4264 wrote to memory of 1416 | N/A | C:\Users\Admin\AppData\Local\Temp\PermWoofer.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4264 wrote to memory of 1996 | N/A | C:\Users\Admin\AppData\Local\Temp\PermWoofer.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 4264 wrote to memory of 1996 | N/A | C:\Users\Admin\AppData\Local\Temp\PermWoofer.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 1996 wrote to memory of 4752 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 1996 wrote to memory of 4752 | 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\PermWoofer.exe
"C:\Users\Admin\AppData\Local\Temp\PermWoofer.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "ahhaa" /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 "ahhaa" /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 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 192.168.1.28:4782 | tcp | |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| N/A | 192.168.1.28:4782 | tcp | |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.209.201.84.in-addr.arpa | udp |
| N/A | 192.168.1.28:4782 | tcp | |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| N/A | 192.168.1.28:4782 | tcp | |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| N/A | 192.168.1.28:4782 | tcp | |
| N/A | 192.168.1.28:4782 | tcp |
Files
memory/4264-0-0x00007FFAF29E3000-0x00007FFAF29E5000-memory.dmp
memory/4264-1-0x0000000000C00000-0x0000000000F24000-memory.dmp
memory/4264-2-0x00007FFAF29E0000-0x00007FFAF34A1000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | b4ac68d3c6cc89ae97e519b9a7241bba |
| SHA1 | ced8a4dec2238bc5f2b7ca9ef9fdac0a6cd9108f |
| SHA256 | 03bc2c340a1081e1521a5c4b92c38756f4de234ac1b1a578556d83737972e343 |
| SHA512 | 8870741c08574945ea43055e6031394af96290348e4e55d3570f937020c49020fc7d61517d9ab9dd42fc65066ba113cb8a31f2d45cff7f7301f8e865d52aa1d5 |
memory/4264-9-0x00007FFAF29E0000-0x00007FFAF34A1000-memory.dmp
memory/1996-10-0x00007FFAF29E0000-0x00007FFAF34A1000-memory.dmp
memory/1996-11-0x00007FFAF29E0000-0x00007FFAF34A1000-memory.dmp
memory/1996-12-0x000000001C4B0000-0x000000001C500000-memory.dmp
memory/1996-13-0x000000001C5C0000-0x000000001C672000-memory.dmp
memory/1996-14-0x00007FFAF29E0000-0x00007FFAF34A1000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-29 23:25
Reported
2024-10-29 23:28
Platform
win7-20240903-en
Max time kernel
126s
Max time network
136s
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\PermWoofer.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\PermWoofer.exe
"C:\Users\Admin\AppData\Local\Temp\PermWoofer.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "ahhaa" /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 "ahhaa" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| N/A | 192.168.1.28:4782 | tcp | |
| N/A | 192.168.1.28:4782 | tcp | |
| N/A | 192.168.1.28:4782 | tcp | |
| N/A | 192.168.1.28:4782 | tcp | |
| N/A | 192.168.1.28:4782 | tcp | |
| N/A | 192.168.1.28:4782 | tcp |
Files
memory/548-0-0x000007FEF5D23000-0x000007FEF5D24000-memory.dmp
memory/548-1-0x0000000001120000-0x0000000001444000-memory.dmp
memory/548-2-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | b4ac68d3c6cc89ae97e519b9a7241bba |
| SHA1 | ced8a4dec2238bc5f2b7ca9ef9fdac0a6cd9108f |
| SHA256 | 03bc2c340a1081e1521a5c4b92c38756f4de234ac1b1a578556d83737972e343 |
| SHA512 | 8870741c08574945ea43055e6031394af96290348e4e55d3570f937020c49020fc7d61517d9ab9dd42fc65066ba113cb8a31f2d45cff7f7301f8e865d52aa1d5 |
memory/2012-8-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp
memory/2012-10-0x00000000012E0000-0x0000000001604000-memory.dmp
memory/548-9-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp
memory/2012-11-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp
memory/2012-12-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp