Analysis
- max time kernel
144s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
18/04/2024, 12:10
General
- Target MusNotifyIcon.exe
- Size 3.1MB
- Sample240418-pcjn3adh7s
- SHA256 e55136b5e561f22a57a076a0f60643d148d7463464d79e79f5153e007a7161c5
Malware Config
Extracted
-
quasar
-
1.4.1
-
openfire
-
88.209.197.253:4782
-
2fa9b0b1-af2c-4d7d-827f-a5590c4a6496
-
encryption_key
CEAEA9FD2F3E18352164BB4D9A6F56EFF5E2D896
-
install_name
MusNotifyIcon.exe
-
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\MusNotifyIcon.exe"C:\Users\Admin\AppData\Local\Temp\MusNotifyIcon.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.log
MusNotifyIcon.exe
memory/2328-0-0x00000000000E0000-0x0000000000404000-memory.dmp
memory/2328-1-0x00007FFD01140000-0x00007FFD01C01000-memory.dmp
memory/2328-2-0x000000001AF30000-0x000000001AF40000-memory.dmp
memory/2328-10-0x00007FFD01140000-0x00007FFD01C01000-memory.dmp
memory/3464-11-0x00007FFD01140000-0x00007FFD01C01000-memory.dmp
memory/3464-12-0x000000001B040000-0x000000001B050000-memory.dmp
memory/3464-13-0x000000001AFE0000-0x000000001B030000-memory.dmp
memory/3464-14-0x000000001B540000-0x000000001B5F2000-memory.dmp
memory/3464-15-0x00007FFD01140000-0x00007FFD01C01000-memory.dmp
memory/3464-16-0x000000001B040000-0x000000001B050000-memory.dmp