Analysis Overview
SHA256
282d6f5ddc83351dab51e6decc1293b078638f0cfd0baca4673afc8246fd32bd
Threat Level: Known bad
The file kreo q zi.7z was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar payload
Quasar family
Executes dropped EXE
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Scheduled Task/Job: Scheduled Task
Suspicious use of FindShellTrayWindow
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-05 02:09
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-05 02:09
Reported
2024-11-05 02:13
Platform
win10ltsc2021-20241023-en
Max time kernel
151s
Max time network
204s
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\Desktop\kreo q zi.exe | N/A |
| 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: SeRestorePrivilege | N/A | C:\Program Files\7-Zip\7zFM.exe | N/A |
| Token: 35 | N/A | C:\Program Files\7-Zip\7zFM.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Program Files\7-Zip\7zFM.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\Desktop\kreo q zi.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:\Program Files\7-Zip\7zFM.exe | N/A |
| N/A | N/A | C:\Program Files\7-Zip\7zFM.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 4604 wrote to memory of 4700 | N/A | C:\Users\Admin\Desktop\kreo q zi.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4604 wrote to memory of 4700 | N/A | C:\Users\Admin\Desktop\kreo q zi.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4604 wrote to memory of 3320 | N/A | C:\Users\Admin\Desktop\kreo q zi.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 4604 wrote to memory of 3320 | N/A | C:\Users\Admin\Desktop\kreo q zi.exe | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe |
| PID 3320 wrote to memory of 4804 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 3320 wrote to memory of 4804 | N/A | C:\Users\Admin\AppData\Roaming\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\kreo q zi.7z"
C:\Users\Admin\Desktop\kreo q zi.exe
"C:\Users\Admin\Desktop\kreo q zi.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Quasar Client Startup" /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 "Quasar Client Startup" /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 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | checkappexec.microsoft.com | udp |
| GB | 51.140.242.104:443 | checkappexec.microsoft.com | tcp |
| US | 8.8.8.8:53 | 104.242.140.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hola435-24858.portmap.host | udp |
| DE | 193.161.193.99:24858 | hola435-24858.portmap.host | tcp |
| US | 8.8.8.8:53 | 99.193.161.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.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 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fd.api.iris.microsoft.com | udp |
| NL | 20.103.156.88:443 | fd.api.iris.microsoft.com | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.73.42.20.in-addr.arpa | udp |
Files
C:\Users\Admin\Desktop\kreo q zi.exe
| MD5 | 28ac02fc40c8f1c2a8989ee3c09a1372 |
| SHA1 | b182758b62a1482142c0fce4be78c786e08b7025 |
| SHA256 | 0fe81f9a51cf0068408de3c3605ce2033a00bd7ec90cc9516c38f6069e06433b |
| SHA512 | 2cbf2f6af46e5fae8e67144e1ac70bc748036c7adb7f7810d7d7d9f255ccf5d163cce07f11fb6526f9ab61c39f28bdf2356cc315b19a61cd2115612882eab767 |
memory/4604-4-0x00007FFDF0753000-0x00007FFDF0755000-memory.dmp
memory/4604-5-0x00000000000E0000-0x0000000000404000-memory.dmp
memory/4604-6-0x00007FFDF0750000-0x00007FFDF1212000-memory.dmp
memory/4604-9-0x00007FFDF0750000-0x00007FFDF1212000-memory.dmp
memory/3320-10-0x000000001B050000-0x000000001B0A0000-memory.dmp
memory/3320-11-0x000000001C320000-0x000000001C3D2000-memory.dmp
memory/3320-14-0x000000001B230000-0x000000001B242000-memory.dmp
memory/3320-15-0x000000001C2A0000-0x000000001C2DC000-memory.dmp