Analysis
- max time kernel
124s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
24/03/2024, 12:34
General
- Target raciszek.exe
- Size 3.1MB
- Sample240324-pryfrsfd7y
- SHA256 1d6e8562b63932a3a363fd154c648219e0ec17df3c990341ffd52100914208ef
Malware Config
Extracted
-
quasar
-
1.4.1
-
cheat
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192.168.0.212:4782
-
a5d56a08-4c88-4ca7-8e06-091c29e9449a
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encryption_key
77B23B0C046D4985649F19E712FCE566C59EFADD
-
install_name
update.exe
-
log_directory
Logs
-
reconnect_delay
3000
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startup_key
epic games
-
subdirectory
SubDir
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 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\raciszek.exe"C:\Users\Admin\AppData\Local\Temp\raciszek.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "epic games" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\update.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\SubDir\update.exe"C:\Users\Admin\AppData\Roaming\SubDir\update.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "epic games" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\update.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
update.exe
memory/3640-9-0x00007FFB84480000-0x00007FFB84F41000-memory.dmp
memory/3640-11-0x000000001BC20000-0x000000001BC30000-memory.dmp
memory/3640-12-0x000000001BB80000-0x000000001BBD0000-memory.dmp
memory/3640-13-0x000000001C3E0000-0x000000001C492000-memory.dmp
memory/3640-14-0x00007FFB84480000-0x00007FFB84F41000-memory.dmp
memory/4368-0-0x0000000000090000-0x00000000003B4000-memory.dmp
memory/4368-1-0x00007FFB84480000-0x00007FFB84F41000-memory.dmp
memory/4368-2-0x000000001AF90000-0x000000001AFA0000-memory.dmp
memory/4368-10-0x00007FFB84480000-0x00007FFB84F41000-memory.dmp