Analysis
- max time kernel
133s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
21/03/2023, 13:24
General
- Target 54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f.exe
- Size 348KB
- Sample230321-qnrdqace2t
- SHA256 54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f
Malware Config
Extracted
-
quasar
-
1.3.0.0
-
Office04
-
myhost88.ddns.net:4782
-
QSR_MUTEX_CSCKyXrjDngDz4TgbL
-
encryption_key
MBOWOlIblpuG4bkQyuuU
-
install_name
ms configs.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
ms configs
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f.exe"C:\Users\Admin\AppData\Local\Temp\54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3844-133-0x0000000000D20000-0x0000000000D7E000-memory.dmp
memory/3844-134-0x0000000005D80000-0x0000000006324000-memory.dmp
memory/3844-135-0x00000000057D0000-0x0000000005862000-memory.dmp
memory/3844-136-0x0000000005960000-0x0000000005970000-memory.dmp
memory/3844-137-0x0000000005740000-0x00000000057A6000-memory.dmp
memory/3844-138-0x0000000006770000-0x0000000006782000-memory.dmp
memory/3844-139-0x0000000006B90000-0x0000000006BCC000-memory.dmp
memory/3844-140-0x0000000005960000-0x0000000005970000-memory.dmp
memory/3844-141-0x0000000006D50000-0x0000000006D5A000-memory.dmp