Analysis
- max time kernel
140s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
04/05/2024, 05:34
General
- Target 9d13ef960c157624ac37ab30b76d26d0.exe
- Size 3.1MB
- Sample240504-f9expsec4v
- SHA256 a164c6db130d252098f00911125ef000567b60e1989a3f270746b0e01346ed1c
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office024
-
161.35.56.10:8787
-
39473175-876b-4cb1-a4ee-60d5e21fc73e
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encryption_key
7E65859BA8EFE6EF43F9FCCE8B632D7E0E4A580E
-
install_name
syncq.exe
-
log_directory
Logs
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reconnect_delay
3000
-
startup_key
syncq
-
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\9d13ef960c157624ac37ab30b76d26d0.exe"C:\Users\Admin\AppData\Local\Temp\9d13ef960c157624ac37ab30b76d26d0.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "syncq" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\syncq.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\SubDir\syncq.exe"C:\Users\Admin\AppData\Roaming\SubDir\syncq.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 "syncq" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\syncq.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
syncq.exe
memory/744-9-0x00007FFC94990000-0x00007FFC95451000-memory.dmp
memory/744-11-0x00007FFC94990000-0x00007FFC95451000-memory.dmp
memory/744-12-0x000000001BBF0000-0x000000001BC40000-memory.dmp
memory/744-13-0x000000001C340000-0x000000001C3F2000-memory.dmp
memory/744-14-0x00007FFC94990000-0x00007FFC95451000-memory.dmp
memory/3248-0-0x00007FFC94993000-0x00007FFC94995000-memory.dmp
memory/3248-1-0x0000000000590000-0x00000000008B4000-memory.dmp
memory/3248-2-0x00007FFC94990000-0x00007FFC95451000-memory.dmp
memory/3248-10-0x00007FFC94990000-0x00007FFC95451000-memory.dmp