Analysis
- max time kernel
147s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
27/05/2024, 15:43
General
- Target 799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe
- Size 348KB
- Sample240527-s567lsac84
- SHA256 b626158fdbfaa911fefd862b9e6caeb47cdaf53954a9d6ba66cd895542c369b0
Malware Config
Extracted
-
quasar
-
1.3.0.0
-
Office04
-
68.94.252.162:4782
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QSR_MUTEX_j3gNc0L0ssBc0mCO5F
-
encryption_key
XfsQ76jccqZq9jzXbmz8
-
install_name
Rift S Patch Tool.exe
-
log_directory
Logs
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reconnect_delay
3000
-
startup_key
Win64x
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in Program Files directory 2 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 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Win64x" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
-
C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe"C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Win64x" /sc ONLOGON /tr "C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Rift S Patch Tool.exe
memory/2096-17-0x00000000061E0000-0x00000000061EA000-memory.dmp
memory/2096-16-0x0000000075430000-0x0000000075BE0000-memory.dmp
memory/2096-15-0x0000000075430000-0x0000000075BE0000-memory.dmp
memory/2096-14-0x0000000075430000-0x0000000075BE0000-memory.dmp
memory/4080-6-0x0000000005C00000-0x0000000005C12000-memory.dmp
memory/4080-0-0x000000007543E000-0x000000007543F000-memory.dmp
memory/4080-7-0x0000000006140000-0x000000000617C000-memory.dmp
memory/4080-5-0x0000000004EF0000-0x0000000004F56000-memory.dmp
memory/4080-13-0x0000000075430000-0x0000000075BE0000-memory.dmp
memory/4080-4-0x0000000075430000-0x0000000075BE0000-memory.dmp
memory/4080-3-0x0000000004F80000-0x0000000005012000-memory.dmp
memory/4080-2-0x0000000005430000-0x00000000059D4000-memory.dmp
memory/4080-1-0x00000000004B0000-0x000000000050E000-memory.dmp