Analysis
- max time kernel
140s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
08/07/2023, 08:29
General
- Target servs4727.js
- Size 46KB
- Sample230708-kdkkjaeb3w
- SHA256 c69642d092f9320dbc90d38fbecc3f212e4211d4f1e98e69f253d034ec77f960
Malware Config
Extracted
-
ps1
-
exe.dropper
https://ecotree.co.in/images/cora.zip
-
exe.dropper
https://ecotree.co.in/images/files/cora.zip
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\servs4727.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\2m985bx.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
2m985bx.ps1
__PSScriptPolicyTest_0kzmkatd.3qd.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/3392-152-0x000001ECEE1B0000-0x000001ECEE1C2000-memory.dmp
memory/3392-151-0x000001ECEE190000-0x000001ECEE1A4000-memory.dmp
memory/3392-150-0x000001ECEBD50000-0x000001ECEBD60000-memory.dmp
memory/3392-153-0x000001ECEE180000-0x000001ECEE18A000-memory.dmp
memory/3392-149-0x000001ECEBD50000-0x000001ECEBD60000-memory.dmp
memory/3392-148-0x000001ECEBD50000-0x000001ECEBD60000-memory.dmp
memory/3392-146-0x000001ECEDE00000-0x000001ECEDE22000-memory.dmp