Analysis
- max time kernel
150s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
18/04/2024, 11:40
General
- Target wm.exe
- Size 3.1MB
- Sample240418-ntbt4sda4v
- SHA256 6e2060f5ac86d80be2d3b4f66a229dd3f1114cd3c0b232e8653335dfcf5a75a3
Malware Config
Extracted
-
quasar
-
1.4.1
-
walmart
-
play.funpass.services:4782
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54aaaa02-4a8c-4cb9-9e9e-7eb8df40f4cd
-
encryption_key
CEAEA9FD2F3E18352164BB4D9A6F56EFF5E2D896
-
install_name
MusNotifyIcon.exe
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log_directory
Logs
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reconnect_delay
3000
-
startup_key
Update
-
subdirectory
System32
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\wm.exe"C:\Users\Admin\AppData\Local\Temp\wm.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\System32\MusNotifyIcon.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\System32\MusNotifyIcon.exe"C:\Users\Admin\AppData\Roaming\System32\MusNotifyIcon.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\System32\MusNotifyIcon.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
MusNotifyIcon.exe
memory/384-10-0x00007FFDC2880000-0x00007FFDC3341000-memory.dmp
memory/384-11-0x0000000003180000-0x0000000003190000-memory.dmp
memory/384-12-0x000000001C0D0000-0x000000001C120000-memory.dmp
memory/384-13-0x000000001C1E0000-0x000000001C292000-memory.dmp
memory/384-14-0x00007FFDC2880000-0x00007FFDC3341000-memory.dmp
memory/980-0-0x00000000009A0000-0x0000000000CC4000-memory.dmp
memory/980-1-0x00007FFDC2880000-0x00007FFDC3341000-memory.dmp
memory/980-2-0x000000001BA30000-0x000000001BA40000-memory.dmp
memory/980-9-0x00007FFDC2880000-0x00007FFDC3341000-memory.dmp