Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
19/08/2024, 19:55
General
- Target PepperX.exe
- Size 3.1MB
- Sample240819-ym7nbasgra
- SHA256 fcece45f00b710bd5cb01a2a79781c871f1bd36fac18e00e85bd6452ecd5eadd
Malware Config
Extracted
-
quasar
-
1.4.1
-
PepperX
-
73.190.43.125:4782
-
88509de8-78d9-4efe-9597-51afc31df588
-
encryption_key
76CFB69AF5F0F8C3D00E4C97AA198CA6E956A019
-
install_name
PepperX.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Windows
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Drops file in System32 directory 5 IoCs
- Scheduled Task/Job: Scheduled Task 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 SetWindowsHookEx 1 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\PepperX.exe"C:\Users\Admin\AppData\Local\Temp\PepperX.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Windows" /sc ONLOGON /tr "C:\Windows\system32\SubDir\PepperX.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\SubDir\PepperX.exe"C:\Windows\system32\SubDir\PepperX.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Windows" /sc ONLOGON /tr "C:\Windows\system32\SubDir\PepperX.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
PepperX.exe.log
PepperX.exe
memory/1044-0-0x00007FF8FF573000-0x00007FF8FF575000-memory.dmp
memory/1044-1-0x0000000000660000-0x0000000000984000-memory.dmp
memory/1044-2-0x00007FF8FF570000-0x00007FF900031000-memory.dmp
memory/1044-11-0x00007FF8FF570000-0x00007FF900031000-memory.dmp
memory/3680-10-0x00007FF8FF570000-0x00007FF900031000-memory.dmp
memory/3680-12-0x00007FF8FF570000-0x00007FF900031000-memory.dmp
memory/3680-13-0x000000001AF70000-0x000000001AFC0000-memory.dmp
memory/3680-14-0x000000001B8A0000-0x000000001B952000-memory.dmp
memory/3680-15-0x00007FF8FF570000-0x00007FF900031000-memory.dmp