Analysis
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max time kernel
210s -
max time network
208s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
22-06-2024 21:14
Behavioral task
behavioral1
Sample
Server33.exe
Resource
win10v2004-20240611-en
General
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Target
Server33.exe
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Size
93KB
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MD5
5836adbf5699fe6dc7e27d695881f99f
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SHA1
7283570b5b5485ea614926acab4a9138d55edd5d
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SHA256
94baaf372f566bc6ffa2c24a952b3f4dda94f29c031b95cfcfba96862206b5a7
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SHA512
5431a6328f6eed65d252f2bf91b441400777ad976d57127c08c36f63b2350eb23803f819191099e29a8adeee53de219b6a11f5c7eecffbb9c22944540beee189
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SSDEEP
1536:wOYYW6qbkW8aVpO1ARkoojEwzGi1dDPDjgS:wOM8aVpOWSCi1dvc
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 3 IoCs
Processes:
netsh.exenetsh.exenetsh.exepid process 4180 netsh.exe 964 netsh.exe 3488 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Server33.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation Server33.exe -
Drops startup file 6 IoCs
Processes:
server.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe server.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a4955fd3d259f774f053031a46dc14a9Windows Update.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a4955fd3d259f774f053031a46dc14a9Windows Update.exe server.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe server.exe -
Executes dropped EXE 1 IoCs
Processes:
server.exepid process 3484 server.exe -
Drops autorun.inf file 1 TTPs 4 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
Processes:
server.exedescription ioc process File created F:\autorun.inf server.exe File opened for modification F:\autorun.inf server.exe File created C:\autorun.inf server.exe File opened for modification C:\autorun.inf server.exe -
Drops file in System32 directory 2 IoCs
Processes:
server.exedescription ioc process File created C:\Windows\SysWOW64\Explower.exe server.exe File opened for modification C:\Windows\SysWOW64\Explower.exe server.exe -
Drops file in Program Files directory 2 IoCs
Processes:
server.exedescription ioc process File created C:\Program Files (x86)\Explower.exe server.exe File opened for modification C:\Program Files (x86)\Explower.exe server.exe -
Drops file in Windows directory 2 IoCs
Processes:
Server33.exeserver.exedescription ioc process File created C:\Windows\server.exe Server33.exe File opened for modification C:\Windows\server.exe 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.
Processes:
netsh.exenetsh.exenetsh.exedescription ioc process Key opened \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 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 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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
server.exepid process 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe 3484 server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
server.exepid process 3484 server.exe -
Suspicious use of AdjustPrivilegeToken 51 IoCs
Processes:
server.exedescription pid process Token: SeDebugPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe Token: 33 3484 server.exe Token: SeIncBasePriorityPrivilege 3484 server.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
Server33.exeserver.exedescription pid process target process PID 704 wrote to memory of 3484 704 Server33.exe server.exe PID 704 wrote to memory of 3484 704 Server33.exe server.exe PID 704 wrote to memory of 3484 704 Server33.exe server.exe PID 3484 wrote to memory of 4180 3484 server.exe netsh.exe PID 3484 wrote to memory of 4180 3484 server.exe netsh.exe PID 3484 wrote to memory of 4180 3484 server.exe netsh.exe PID 3484 wrote to memory of 964 3484 server.exe netsh.exe PID 3484 wrote to memory of 964 3484 server.exe netsh.exe PID 3484 wrote to memory of 964 3484 server.exe netsh.exe PID 3484 wrote to memory of 3488 3484 server.exe netsh.exe PID 3484 wrote to memory of 3488 3484 server.exe netsh.exe PID 3484 wrote to memory of 3488 3484 server.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Server33.exe"C:\Users\Admin\AppData\Local\Temp\Server33.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:704 -
C:\Windows\server.exe"C:\Windows\server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops autorun.inf file
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3484 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:4180 -
C:\Windows\SysWOW64\netsh.exenetsh firewall delete allowedprogram "C:\Windows\server.exe"3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:964 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:3488
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5B
MD5d43c5b07c128b116b7bc8faf7b8efa9d
SHA1dd3540ad4ae14b21b665d108cf4570c2dfa6a6fa
SHA25680ad1cc7b3a784dad618a445af0c8cf3efa903f82a814756f2aaa7b57f45791f
SHA512618b01e2b808e1954d011635dfdf63bc75855145208fc5cae33ce09c7e5b43cf978f6511beb311765e6920e728a290c9f9ced7563e40e8ff8d093d50fdc18334
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Filesize
93KB
MD55836adbf5699fe6dc7e27d695881f99f
SHA17283570b5b5485ea614926acab4a9138d55edd5d
SHA25694baaf372f566bc6ffa2c24a952b3f4dda94f29c031b95cfcfba96862206b5a7
SHA5125431a6328f6eed65d252f2bf91b441400777ad976d57127c08c36f63b2350eb23803f819191099e29a8adeee53de219b6a11f5c7eecffbb9c22944540beee189