Analysis
- max time kernel
145s - max time network
163s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
06/04/2024, 05:07
General
- Target ff278fa3c5acf475f929dab7a0e221435789da22037ac07688c5be7240e79536.exe
- Size 510KB
- Sample240406-fr688sbd7w
- SHA256 ff278fa3c5acf475f929dab7a0e221435789da22037ac07688c5be7240e79536
Malware Config
Extracted
-
asyncrat
-
0.5.7B
-
Default
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194.147.140.169:3307
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resultbox0147logs.ddns.net:3307
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AsyncMutex_6SI8OkPnk
-
delay
3
-
install
false
-
install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Detects executables packed with SmartAssembly 2 IoCs
- Detects file containing reversed ASEP Autorun registry keys 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 17 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ff278fa3c5acf475f929dab7a0e221435789da22037ac07688c5be7240e79536.exe"C:\Users\Admin\AppData\Local\Temp\ff278fa3c5acf475f929dab7a0e221435789da22037ac07688c5be7240e79536.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ff278fa3c5acf475f929dab7a0e221435789da22037ac07688c5be7240e79536.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TAJCBZdXxAz.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TAJCBZdXxAz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp36F9.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\ff278fa3c5acf475f929dab7a0e221435789da22037ac07688c5be7240e79536.exe"C:\Users\Admin\AppData\Local\Temp\ff278fa3c5acf475f929dab7a0e221435789da22037ac07688c5be7240e79536.exe"2⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_avue0jlb.aer.ps1
tmp36F9.tmp
memory/2156-93-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/2156-51-0x0000000006640000-0x000000000668C000-memory.dmp
memory/2156-77-0x0000000007840000-0x00000000078E3000-memory.dmp
memory/2156-81-0x0000000007BC0000-0x0000000007C56000-memory.dmp
memory/2156-67-0x0000000070E10000-0x0000000070E5C000-memory.dmp
memory/2156-55-0x0000000006C00000-0x0000000006C32000-memory.dmp
memory/2156-85-0x0000000007C80000-0x0000000007C9A000-memory.dmp
memory/2156-86-0x0000000007C60000-0x0000000007C68000-memory.dmp
memory/2156-52-0x0000000005150000-0x0000000005160000-memory.dmp
memory/2156-50-0x0000000006610000-0x000000000662E000-memory.dmp
memory/2156-79-0x0000000007F70000-0x00000000085EA000-memory.dmp
memory/2156-19-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/2156-20-0x0000000005150000-0x0000000005160000-memory.dmp
memory/2156-29-0x0000000005F30000-0x0000000005F96000-memory.dmp
memory/2156-26-0x0000000005630000-0x0000000005652000-memory.dmp
memory/2156-23-0x0000000005790000-0x0000000005DB8000-memory.dmp
memory/3148-11-0x00000000058F0000-0x0000000005900000-memory.dmp
memory/3148-10-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/3148-6-0x0000000005E90000-0x0000000005EA0000-memory.dmp
memory/3148-28-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/3148-3-0x0000000005930000-0x00000000059C2000-memory.dmp
memory/3148-1-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/3148-0-0x0000000000FD0000-0x0000000001054000-memory.dmp
memory/3148-4-0x00000000058F0000-0x0000000005900000-memory.dmp
memory/3148-2-0x0000000005EE0000-0x0000000006484000-memory.dmp
memory/3148-7-0x0000000005EA0000-0x0000000005EAC000-memory.dmp
memory/3148-5-0x0000000005AD0000-0x0000000005ADA000-memory.dmp
memory/3148-8-0x0000000006D10000-0x0000000006D64000-memory.dmp
memory/3148-9-0x0000000009410000-0x00000000094AC000-memory.dmp
memory/4684-94-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/4684-24-0x0000000000400000-0x0000000000412000-memory.dmp
memory/4684-53-0x00000000052B0000-0x00000000052C0000-memory.dmp
memory/4684-95-0x00000000052B0000-0x00000000052C0000-memory.dmp
memory/4684-27-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/5004-35-0x0000000005ED0000-0x0000000005F36000-memory.dmp
memory/5004-78-0x0000000006920000-0x000000000693A000-memory.dmp
memory/5004-80-0x00000000078D0000-0x00000000078DA000-memory.dmp
memory/5004-66-0x0000000006AD0000-0x0000000006AEE000-memory.dmp
memory/5004-82-0x0000000007A60000-0x0000000007A71000-memory.dmp
memory/5004-83-0x0000000007A90000-0x0000000007A9E000-memory.dmp
memory/5004-84-0x0000000007AA0000-0x0000000007AB4000-memory.dmp
memory/5004-56-0x0000000070E10000-0x0000000070E5C000-memory.dmp
memory/5004-54-0x000000007F0E0000-0x000000007F0F0000-memory.dmp
memory/5004-92-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/5004-49-0x0000000006120000-0x0000000006474000-memory.dmp
memory/5004-21-0x0000000001460000-0x0000000001470000-memory.dmp
memory/5004-18-0x0000000001460000-0x0000000001470000-memory.dmp
memory/5004-17-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/5004-16-0x0000000001470000-0x00000000014A6000-memory.dmp