Analysis
- max time kernel
148s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
25/03/2024, 04:12
General
- Target Client-built.exe
- Size 3.1MB
- Sample240325-eskaesfg86
- SHA256 bfd43fe95304c3ee54a74c00bac1e4a3cdd198ba2ca26345290fb1f6f7bbee8c
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
10.0.0.175:6169
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76.104.23.114:6169
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ab9b3301-7d57-48cd-a8de-3072eeb5046f
-
encryption_key
D23711A149C34B50B930A019437F0A4B6599FF08
-
install_name
LunaSpoofer.exe
-
log_directory
Logs
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reconnect_delay
3000
-
startup_key
Epic Games
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 3 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 FindShellTrayWindow 6 IoCs
- Suspicious use of SendNotifyMessage 6 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
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C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Epic Games" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\LunaSpoofer.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\SubDir\LunaSpoofer.exe"C:\Users\Admin\AppData\Roaming\SubDir\LunaSpoofer.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Epic Games" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\LunaSpoofer.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
LunaSpoofer.exe
LunaSpoofer.exe
memory/220-0-0x0000000000C30000-0x0000000000F54000-memory.dmp
memory/220-1-0x00007FFDE34E0000-0x00007FFDE3FA1000-memory.dmp
memory/220-2-0x000000001BBD0000-0x000000001BBE0000-memory.dmp
memory/220-9-0x00007FFDE34E0000-0x00007FFDE3FA1000-memory.dmp
memory/1636-10-0x00007FFDE34E0000-0x00007FFDE3FA1000-memory.dmp
memory/1636-11-0x0000000001950000-0x0000000001960000-memory.dmp
memory/1636-12-0x000000001CCD0000-0x000000001CD20000-memory.dmp
memory/1636-13-0x000000001CDE0000-0x000000001CE92000-memory.dmp
memory/1636-14-0x00007FFDE34E0000-0x00007FFDE3FA1000-memory.dmp
memory/1636-15-0x0000000001950000-0x0000000001960000-memory.dmp
memory/1636-18-0x000000001CD20000-0x000000001CD32000-memory.dmp
memory/1636-19-0x000000001CD80000-0x000000001CDBC000-memory.dmp