Analysis
- max time kernel
48s - max time network
51s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
02/06/2024, 09:32
General
- Target SynapseX.exe
- Size 3.1MB
- Sample240602-lhz2fsaa56
- SHA256 790c606fd4e39779b55dacfaa684be5aea2cd3cebd9b26f089c3498399b4b757
Malware Config
Extracted
-
quasar
-
1.4.1
-
Chase
-
Synapsedoggystyle-51191.portmap.host:51191
-
bfe1d049-722e-41ed-b777-d417eb22f6e7
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encryption_key
33F77912B4CF70A0AD1E582014B5294301E27672
-
install_name
Synapase.exe
-
log_directory
Windows Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
document
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Drops file in Program Files directory 5 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\SynapseX.exe"C:\Users\Admin\AppData\Local\Temp\SynapseX.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Program Files\document\Synapase.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
-
C:\Program Files\document\Synapase.exe"C:\Program Files\document\Synapase.exe"2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Program Files\document\Synapase.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Synapase.exe
memory/320-0-0x00007FFEC4133000-0x00007FFEC4135000-memory.dmp
memory/320-1-0x00000000006F0000-0x0000000000A14000-memory.dmp
memory/320-2-0x00007FFEC4130000-0x00007FFEC4BF1000-memory.dmp
memory/320-9-0x00007FFEC4130000-0x00007FFEC4BF1000-memory.dmp
memory/916-10-0x00007FFEC4130000-0x00007FFEC4BF1000-memory.dmp
memory/916-11-0x00007FFEC4130000-0x00007FFEC4BF1000-memory.dmp
memory/916-12-0x000000001BB50000-0x000000001BBA0000-memory.dmp
memory/916-13-0x000000001BC60000-0x000000001BD12000-memory.dmp
memory/916-14-0x00007FFEC4130000-0x00007FFEC4BF1000-memory.dmp