Analysis Overview
SHA256
6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd
Threat Level: Known bad
The file 6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar payload
Quasar RAT
Executes dropped EXE
Unsigned PE
Scheduled Task/Job: Scheduled Task
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-31 00:34
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
2024-10-31 00:33
Reported
2024-10-31 00:36
Platform
win7-20240903-en
Max time kernel
150s
Max time network
139s
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\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.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\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.exe
"C:\Users\Admin\AppData\Local\Temp\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Windows Services" /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 "Windows Services" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| N/A | 192.168.1.116:4782 | tcp | |
| N/A | 192.168.1.116:4782 | tcp | |
| N/A | 192.168.1.116:4782 | tcp | |
| N/A | 192.168.1.116:4782 | tcp | |
| N/A | 192.168.1.116:4782 | tcp | |
| N/A | 192.168.1.116:4782 | tcp | |
| N/A | 192.168.1.116:4782 | tcp |
Files
memory/2212-0-0x000007FEF61C3000-0x000007FEF61C4000-memory.dmp
memory/2212-1-0x0000000000B10000-0x0000000000E34000-memory.dmp
memory/2212-2-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | 8e2f41a8da48ee3bb6d533d7de12d621 |
| SHA1 | 4b4f1bbfc8e8570668b55f1157791879fc272a6b |
| SHA256 | 6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd |
| SHA512 | fb78fabf6e4b4e52b375f63b687ea6758efa05a7a1b67c2df5c18cdbb9382bb34f768d340cb8386432a8b52fc7893d807409dd4857c3f46cdec54bc5745224d0 |
memory/2212-8-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp
memory/2708-9-0x00000000011B0000-0x00000000014D4000-memory.dmp
memory/2708-11-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp
memory/2708-10-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp
memory/2708-12-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-31 00:33
Reported
2024-10-31 00:37
Platform
win10v2004-20241007-en
Max time kernel
135s
Max time network
144s
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\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.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 2340 wrote to memory of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2340 wrote to memory of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2340 wrote to memory of 4836 | N/A | C:\Users\Admin\AppData\Local\Temp\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 2340 wrote to memory of 4836 | N/A | C:\Users\Admin\AppData\Local\Temp\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 4836 wrote to memory of 4088 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4836 wrote to memory of 4088 | 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\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.exe
"C:\Users\Admin\AppData\Local\Temp\6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Windows Services" /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 "Windows Services" /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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 226.108.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 192.168.1.116:4782 | tcp | |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| N/A | 192.168.1.116:4782 | tcp | |
| 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 | 101.11.19.2.in-addr.arpa | udp |
| N/A | 192.168.1.116:4782 | tcp | |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| N/A | 192.168.1.116:4782 | tcp | |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| N/A | 192.168.1.116:4782 | tcp | |
| N/A | 192.168.1.116:4782 | tcp |
Files
memory/2340-0-0x00007FFA8A943000-0x00007FFA8A945000-memory.dmp
memory/2340-1-0x0000000000ED0000-0x00000000011F4000-memory.dmp
memory/2340-2-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
| MD5 | 8e2f41a8da48ee3bb6d533d7de12d621 |
| SHA1 | 4b4f1bbfc8e8570668b55f1157791879fc272a6b |
| SHA256 | 6c05bdd9bfaaab482d1261c53bd31ec000b9c6a401e8a9f40684217d4c3805cd |
| SHA512 | fb78fabf6e4b4e52b375f63b687ea6758efa05a7a1b67c2df5c18cdbb9382bb34f768d340cb8386432a8b52fc7893d807409dd4857c3f46cdec54bc5745224d0 |
memory/2340-9-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp
memory/4836-10-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp
memory/4836-11-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp
memory/4836-12-0x000000001B6C0000-0x000000001B710000-memory.dmp
memory/4836-13-0x000000001C000000-0x000000001C0B2000-memory.dmp
memory/4836-14-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp