Analysis
- max time kernel
147s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
31/03/2024, 08:34
General
- Target tmp.exe
- Size 3.1MB
- Sample240331-kgehpagg8v
- SHA256 5ac4db28729ef274c94e5a65ea6f2900be893f63d3b984a7ba27cc83a2c54e1b
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
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185.196.10.233:4782
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a244256d-314d-4857-83fe-790ac24d7897
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encryption_key
0EC03133971030F6D05E6D59F71626F6543BBE65
-
install_name
gfdgfdg.exe
-
log_directory
Logs
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reconnect_delay
3000
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startup_key
fgfdhdgg
-
subdirectory
gfgfgf
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 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\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "fgfdhdgg" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\gfgfgf\gfdgfdg.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Roaming\gfgfgf\gfdgfdg.exe"C:\Users\Admin\AppData\Roaming\gfgfgf\gfdgfdg.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "fgfdhdgg" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\gfgfgf\gfdgfdg.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
gfdgfdg.exe
memory/3712-10-0x000000001BC90000-0x000000001BCE0000-memory.dmp
memory/3712-8-0x00007FFE9C9F0000-0x00007FFE9D4B1000-memory.dmp
memory/3712-11-0x000000001C7A0000-0x000000001C852000-memory.dmp
memory/3712-14-0x000000001C700000-0x000000001C712000-memory.dmp
memory/3712-15-0x000000001C760000-0x000000001C79C000-memory.dmp
memory/3712-16-0x000000001CDA0000-0x000000001CEA2000-memory.dmp
memory/3712-18-0x00007FFE9C9F0000-0x00007FFE9D4B1000-memory.dmp
memory/3712-19-0x000000001BCE0000-0x000000001BCF0000-memory.dmp
memory/4412-2-0x000000001B3E0000-0x000000001B3F0000-memory.dmp
memory/4412-1-0x00007FFE9C9F0000-0x00007FFE9D4B1000-memory.dmp
memory/4412-9-0x00007FFE9C9F0000-0x00007FFE9D4B1000-memory.dmp
memory/4412-0-0x00000000004B0000-0x00000000007D4000-memory.dmp