Analysis
- max time kernel
39s - max time network
41s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
05/08/2024, 08:05
Errors
General
- Target skibidirat.exe
- Size 3.1MB
- Sample240805-jythhavcmb
- SHA256 62e9fdaaf90da01ef28a26823e3442d73b93dc0e23d93139df631701cf6da260
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
147.185.221.18:42996
-
147.185.221.18:1770
-
c2e1b18a-ce93-436d-ad8b-21bf89015e19
-
encryption_key
9E968F05BD874BA1BE086FD1774A027473823F49
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies data under HKEY_USERS 15 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of SendNotifyMessage 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\skibidirat.exe"C:\Users\Admin\AppData\Local\Temp\skibidirat.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\shutdown.exe"C:\Windows\System32\shutdown.exe" /s /t 02⤵
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa395d855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/2344-0-0x00007FFA10843000-0x00007FFA10845000-memory.dmp
memory/2344-1-0x0000000000140000-0x0000000000464000-memory.dmp
memory/2344-2-0x00007FFA10840000-0x00007FFA11301000-memory.dmp
memory/2344-3-0x000000001BB60000-0x000000001BBB0000-memory.dmp
memory/2344-4-0x000000001BC70000-0x000000001BD22000-memory.dmp
memory/2344-5-0x000000001BB30000-0x000000001BB42000-memory.dmp
memory/2344-6-0x000000001BBF0000-0x000000001BC2C000-memory.dmp
memory/2344-7-0x00007FFA10843000-0x00007FFA10845000-memory.dmp
memory/2344-8-0x00007FFA10840000-0x00007FFA11301000-memory.dmp
memory/2344-10-0x00007FFA10840000-0x00007FFA11301000-memory.dmp