Analysis
- max time kernel
76s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20230621-en - resource tags
- submitted
05/07/2023, 10:39
General
- Target rechn1831.js
- Size 48KB
- Sample230705-mp4hwsdb5x
- SHA256 0d2d85d98310a735391d516207b11b6eeea4a5b833cbc521b40d39b6e8635bcd
Malware Config
Extracted
-
ps1
-
exe.dropper
https://clibur.es/apply.zip
-
exe.dropper
https://clibur.es/files/
Signatures
- NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 6 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\rechn1831.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -WindowStyle hidden -File C:\Users\Admin\AppData\Local\Temp\qqpy3xo.ps12⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe"C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
__PSScriptPolicyTest_l5zledkg.jjr.ps1
qqpy3xo.ps1
HTCTL32.DLL
HTCTL32.DLL
MSVCR100.dll
NSM.LIC
PCICHEK.DLL
PCICL32.DLL
PCICL32.dll
client32.exe
client32.exe
client32.exe
client32.ini
msvcr100.dll
msvcr100.dll
pcicapi.dll
pcicapi.dll
pcichek.dll
memory/4000-156-0x0000025E59970000-0x0000025E5997A000-memory.dmp
memory/4000-155-0x0000025E599A0000-0x0000025E599B2000-memory.dmp
memory/4000-154-0x0000025E592C0000-0x0000025E592D0000-memory.dmp
memory/4000-153-0x0000025E592C0000-0x0000025E592D0000-memory.dmp
memory/4000-152-0x0000025E592C0000-0x0000025E592D0000-memory.dmp
memory/4000-151-0x0000025E59980000-0x0000025E59994000-memory.dmp
memory/4000-150-0x0000025E592C0000-0x0000025E592D0000-memory.dmp
memory/4000-148-0x0000025E592C0000-0x0000025E592D0000-memory.dmp
memory/4000-149-0x0000025E592C0000-0x0000025E592D0000-memory.dmp
memory/4000-142-0x0000025E59470000-0x0000025E59492000-memory.dmp