Analysis
- max time kernel
135s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
26/05/2023, 17:02
General
- Target 08476899.exe
- Size 348KB
- Sample230526-vkchlsge47
- SHA256 90c5baa1030eb91bb5f870eb75e48fe3187d41c938527695ae59bdc6fb6bd3ba
Malware Config
Extracted
-
quasar
-
1.3.0.0
-
Office04
-
cryptersandtools.ddns.com.br:5552
-
QSR_MUTEX_PV7LCoiUmiwD1RBPCq
-
encryption_key
Vw2ej5yeMh01Kv7liiDf
-
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
- 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\08476899.exe"C:\Users\Admin\AppData\Local\Temp\08476899.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/4464-136-0x00000000003D0000-0x000000000042E000-memory.dmp
memory/4464-137-0x0000000005310000-0x00000000058B4000-memory.dmp
memory/4464-138-0x0000000004D60000-0x0000000004DF2000-memory.dmp
memory/4464-139-0x0000000004D20000-0x0000000004D30000-memory.dmp
memory/4464-140-0x0000000004CB0000-0x0000000004D16000-memory.dmp
memory/4464-141-0x0000000005AE0000-0x0000000005AF2000-memory.dmp
memory/4464-142-0x0000000005F00000-0x0000000005F3C000-memory.dmp
memory/4464-143-0x0000000004D20000-0x0000000004D30000-memory.dmp
memory/4464-144-0x00000000060C0000-0x00000000060CA000-memory.dmp