Analysis Overview
SHA256
83350c38bd734b17254e270457391255342bee4c92ddab004f6f596046d16f99
Threat Level: Known bad
The file dontopenit.exe was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar payload
Quasar RAT
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-30 19:44
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
2024-10-30 19:44
Reported
2024-10-30 19:47
Platform
win7-20240708-en
Max time kernel
149s
Max time network
135s
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 |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\dontopenit.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of SendNotifyMessage
| 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 2412 wrote to memory of 1792 | N/A | C:\Users\Admin\AppData\Local\Temp\dontopenit.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 2412 wrote to memory of 1792 | N/A | C:\Users\Admin\AppData\Local\Temp\dontopenit.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 2412 wrote to memory of 1792 | N/A | C:\Users\Admin\AppData\Local\Temp\dontopenit.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\dontopenit.exe
"C:\Users\Admin\AppData\Local\Temp\dontopenit.exe"
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 192.168.0.110:4782 | tcp | |
| N/A | 192.168.0.110:4782 | tcp | |
| N/A | 192.168.0.110:4782 | tcp | |
| N/A | 192.168.0.110:4782 | tcp | |
| N/A | 192.168.0.110:4782 | tcp | |
| N/A | 192.168.0.110:4782 | tcp | |
| N/A | 192.168.0.110:4782 | tcp |
Files
memory/2412-0-0x000007FEF56A3000-0x000007FEF56A4000-memory.dmp
memory/2412-1-0x0000000000CE0000-0x0000000001004000-memory.dmp
memory/2412-2-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | 7fd77d009a68f6f02a75522b7e4a6313 |
| SHA1 | a9b761e5fa44b73e1c25c20c841c83218d101263 |
| SHA256 | 83350c38bd734b17254e270457391255342bee4c92ddab004f6f596046d16f99 |
| SHA512 | 536af6029f0abda5cb9ac8091da76c06f15523a10c0cf62760e10afc8baa6ea87189f3d2a3b2b60e730143f300fafc7d19b840ae699e2a288856c389095670f0 |
memory/1792-8-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp
memory/1792-7-0x0000000000F50000-0x0000000001274000-memory.dmp
memory/1792-9-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp
memory/2412-10-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp
memory/1792-11-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-30 19:44
Reported
2024-10-30 19:46
Platform
win10v2004-20241007-en
Max time kernel
76s
Max time network
85s
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 |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\dontopenit.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | N/A |
Suspicious use of SendNotifyMessage
| 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 1468 wrote to memory of 2652 | N/A | C:\Users\Admin\AppData\Local\Temp\dontopenit.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 1468 wrote to memory of 2652 | N/A | C:\Users\Admin\AppData\Local\Temp\dontopenit.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\dontopenit.exe
"C:\Users\Admin\AppData\Local\Temp\dontopenit.exe"
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 192.168.0.110:4782 | tcp | |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| N/A | 192.168.0.110:4782 | tcp | |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| N/A | 192.168.0.110:4782 | tcp | |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| N/A | 192.168.0.110:4782 | tcp |
Files
memory/1468-0-0x00007FFF15563000-0x00007FFF15565000-memory.dmp
memory/1468-1-0x0000000000410000-0x0000000000734000-memory.dmp
memory/1468-2-0x00007FFF15560000-0x00007FFF16021000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | 7fd77d009a68f6f02a75522b7e4a6313 |
| SHA1 | a9b761e5fa44b73e1c25c20c841c83218d101263 |
| SHA256 | 83350c38bd734b17254e270457391255342bee4c92ddab004f6f596046d16f99 |
| SHA512 | 536af6029f0abda5cb9ac8091da76c06f15523a10c0cf62760e10afc8baa6ea87189f3d2a3b2b60e730143f300fafc7d19b840ae699e2a288856c389095670f0 |
memory/2652-8-0x00007FFF15560000-0x00007FFF16021000-memory.dmp
memory/1468-9-0x00007FFF15560000-0x00007FFF16021000-memory.dmp
memory/2652-10-0x00007FFF15560000-0x00007FFF16021000-memory.dmp
memory/2652-11-0x000000001C1A0000-0x000000001C1F0000-memory.dmp
memory/2652-12-0x000000001C2B0000-0x000000001C362000-memory.dmp
memory/2652-13-0x00007FFF15560000-0x00007FFF16021000-memory.dmp