Analysis
- max time kernel
93s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
13/11/2024, 20:51
General
- Target a1720d68eef7dc381a533fd8584a227db3dbcaed16098a0d7f31077f95355e8c.exe
- Size 20.4MB
- Sample241113-znk2dayfrc
- SHA256 a1720d68eef7dc381a533fd8584a227db3dbcaed16098a0d7f31077f95355e8c
Malware Config
Signatures
- NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
- Netsupport family
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 6 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 64 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a1720d68eef7dc381a533fd8584a227db3dbcaed16098a0d7f31077f95355e8c.exe"C:\Users\Admin\AppData\Local\Temp\a1720d68eef7dc381a533fd8584a227db3dbcaed16098a0d7f31077f95355e8c.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-KV8AN.tmp\a1720d68eef7dc381a533fd8584a227db3dbcaed16098a0d7f31077f95355e8c.tmp"C:\Users\Admin\AppData\Local\Temp\is-KV8AN.tmp\a1720d68eef7dc381a533fd8584a227db3dbcaed16098a0d7f31077f95355e8c.tmp" /SL5="$90060,18032967,815616,C:\Users\Admin\AppData\Local\Temp\a1720d68eef7dc381a533fd8584a227db3dbcaed16098a0d7f31077f95355e8c.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\is-S81SJ.tmp\ExtractedContent.ps1"3⤵
- Adds Run key to start application
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\SystemUtil\client32.exe"C:\Users\Admin\AppData\Roaming\SystemUtil\client32.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
details_panel_id_id.tpl
__PSScriptPolicyTest_dtblccua.auq.ps1
a1720d68eef7dc381a533fd8584a227db3dbcaed16098a0d7f31077f95355e8c.tmp
ExtractedContent.ps1
HTCTL32.DLL
MSVCR100.dll
NSM.LIC
PCICHEK.DLL
PCICL32.dll
client32.exe
client32.ini
pcicapi.dll
memory/980-399-0x0000000000FE0000-0x0000000001314000-memory.dmp
memory/980-14-0x0000000000FE0000-0x0000000001314000-memory.dmp
memory/980-12-0x0000000000FE0000-0x0000000001314000-memory.dmp
memory/980-9-0x0000000000FE0000-0x0000000001314000-memory.dmp
memory/980-10-0x0000000001660000-0x0000000001661000-memory.dmp
memory/980-6-0x0000000001660000-0x0000000001661000-memory.dmp
memory/980-404-0x0000000000FE0000-0x0000000001314000-memory.dmp
memory/4716-323-0x0000000008C80000-0x0000000009224000-memory.dmp
memory/4716-343-0x00000000076D0000-0x00000000076E1000-memory.dmp
memory/4716-318-0x0000000006690000-0x00000000066DC000-memory.dmp
memory/4716-312-0x0000000005FF0000-0x0000000006344000-memory.dmp
memory/4716-320-0x0000000006BB0000-0x0000000006C46000-memory.dmp
memory/4716-321-0x0000000006B30000-0x0000000006B4A000-memory.dmp
memory/4716-322-0x0000000006B80000-0x0000000006BA2000-memory.dmp
memory/4716-402-0x0000000072940000-0x00000000730F0000-memory.dmp
memory/4716-327-0x0000000072940000-0x00000000730F0000-memory.dmp
memory/4716-326-0x000000006F1D0000-0x000000006F21C000-memory.dmp
memory/4716-325-0x00000000087D0000-0x0000000008802000-memory.dmp
memory/4716-328-0x000000006F4C0000-0x000000006F814000-memory.dmp
memory/4716-338-0x00000000087B0000-0x00000000087CE000-memory.dmp
memory/4716-339-0x0000000008A20000-0x0000000008AC3000-memory.dmp
memory/4716-340-0x0000000072940000-0x00000000730F0000-memory.dmp
memory/4716-341-0x00000000098B0000-0x0000000009F2A000-memory.dmp
memory/4716-342-0x0000000008BE0000-0x0000000008BEA000-memory.dmp
memory/4716-317-0x0000000006600000-0x000000000661E000-memory.dmp
memory/4716-345-0x0000000072940000-0x00000000730F0000-memory.dmp
memory/4716-346-0x0000000007780000-0x0000000007792000-memory.dmp
memory/4716-347-0x0000000007770000-0x000000000777A000-memory.dmp
memory/4716-311-0x0000000005F80000-0x0000000005FE6000-memory.dmp
memory/4716-305-0x0000000072940000-0x00000000730F0000-memory.dmp
memory/4716-304-0x0000000005F10000-0x0000000005F76000-memory.dmp
memory/4716-303-0x0000000005630000-0x0000000005652000-memory.dmp
memory/4716-301-0x0000000072940000-0x00000000730F0000-memory.dmp
memory/4716-302-0x0000000005770000-0x0000000005D98000-memory.dmp
memory/4716-300-0x0000000005050000-0x0000000005086000-memory.dmp
memory/4716-299-0x000000007294E000-0x000000007294F000-memory.dmp
memory/4808-8-0x0000000000E10000-0x0000000000EE5000-memory.dmp
memory/4808-0-0x0000000000E10000-0x0000000000EE5000-memory.dmp
memory/4808-2-0x0000000000E11000-0x0000000000EB9000-memory.dmp
memory/4808-405-0x0000000000E10000-0x0000000000EE5000-memory.dmp