Analysis
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max time kernel
150s -
max time network
138s -
platform
windows10-ltsc 2021_x64 -
resource
win10ltsc2021-20250113-en -
resource tags
arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system -
submitted
15-01-2025 20:08
Behavioral task
behavioral1
Sample
idk.exe
Resource
win10ltsc2021-20250113-en
windows10-ltsc 2021-x64
13 signatures
150 seconds
General
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Target
idk.exe
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Size
93KB
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MD5
83f90cb80993c51fe93a9f341922a3c8
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SHA1
0fb07736f3a7be6f69e17525e32337bd88ff4fd6
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SHA256
6289a6f437dbe477d4648b112653a1e6de8c191489671d3e2fd51a31946103bd
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SHA512
7600ce9c8e603b2329c2fd98d36143ccb52ff6e11a2679c8cc47b1ce78938c752003c4d482c6fbfe5ad22f5e4594b72f5ed46443e9c2b0b7483116757a529c4f
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SSDEEP
768:4Y3TVfhWXxyFcxovUKUJuROprXtWN8eYhYbmXxrjEtCdnl2pi1Rz4Rk3rTYsGdpv:TV5WhIUKcuOJhPhBjEwzGi1dD3gDPgS
Malware Config
Signatures
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Disables Task Manager via registry modification
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Modifies Windows Firewall 2 TTPs 3 IoCs
pid Process 1936 netsh.exe 4924 netsh.exe 4480 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2449540194-3226363261-2578591490-1000\Control Panel\International\Geo\Nation idk.exe -
Executes dropped EXE 1 IoCs
pid Process 232 server.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
flow ioc 4 0.tcp.ngrok.io -
Drops autorun.inf file 1 TTPs 4 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File created C:\autorun.inf server.exe File opened for modification C:\autorun.inf server.exe File created F:\autorun.inf server.exe File opened for modification F:\autorun.inf server.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language idk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language server.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe 232 server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 232 server.exe -
Suspicious use of AdjustPrivilegeToken 37 IoCs
description pid Process Token: SeDebugPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe Token: 33 232 server.exe Token: SeIncBasePriorityPrivilege 232 server.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 760 wrote to memory of 232 760 idk.exe 81 PID 760 wrote to memory of 232 760 idk.exe 81 PID 760 wrote to memory of 232 760 idk.exe 81 PID 232 wrote to memory of 1936 232 server.exe 82 PID 232 wrote to memory of 1936 232 server.exe 82 PID 232 wrote to memory of 1936 232 server.exe 82 PID 232 wrote to memory of 4924 232 server.exe 84 PID 232 wrote to memory of 4924 232 server.exe 84 PID 232 wrote to memory of 4924 232 server.exe 84 PID 232 wrote to memory of 4480 232 server.exe 85 PID 232 wrote to memory of 4480 232 server.exe 85 PID 232 wrote to memory of 4480 232 server.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\idk.exe"C:\Users\Admin\AppData\Local\Temp\idk.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:760 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"2⤵
- Executes dropped EXE
- Drops autorun.inf file
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:232 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1936
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C:\Windows\SysWOW64\netsh.exenetsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:4924
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:4480
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Network
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Replay Monitor
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Downloads
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Filesize
93KB
MD583f90cb80993c51fe93a9f341922a3c8
SHA10fb07736f3a7be6f69e17525e32337bd88ff4fd6
SHA2566289a6f437dbe477d4648b112653a1e6de8c191489671d3e2fd51a31946103bd
SHA5127600ce9c8e603b2329c2fd98d36143ccb52ff6e11a2679c8cc47b1ce78938c752003c4d482c6fbfe5ad22f5e4594b72f5ed46443e9c2b0b7483116757a529c4f
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Filesize
5B
MD5aa3cce4f6c83d5adfcfc45934b274cc6
SHA120e102f0ad9f95951786af279e5215d2ecf85126
SHA25657a8ff317e913b7e08c0a1758997ed0ffc2f1aba0a3b3310c7697bc207fd15e5
SHA512f9ec7cd14188f6f7cc00d64dfd7781fc425b7dd24d8fa70d9382cd127bbcc657c734812bc50ba0761393b1a89de9dc02f0d90e8377d6387f24e2d36c98d185cf