Analysis
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max time kernel
150s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16/09/2024, 09:59
Behavioral task
behavioral1
Sample
Server.exe
Resource
win7-20240903-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
Server.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
Server.exe
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Size
93KB
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MD5
1bc7170bb503ec1dd8b63c6604781f58
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SHA1
400f928ff7d1b665e36b20d7353d28daf176c74d
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SHA256
f7306ad6f4594b82052edfb62a61379ed16219c39b6e5153f140b435ee6850a7
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SHA512
ee0d512c7be1171bf42181cdeb5ca5d8a54017332756d37b2d54a2ca4ca7d2fbef6a859c674ba437141fd7e38f4677aa9e48d0a3c392cbecd1ceaef17bcaec04
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SSDEEP
1536:kKjJD/HBZbszKu9AZpd7r1jEwzGi1dDED5gS:kKCzK4AZ3HCi1dy2
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 2176 netsh.exe 2880 netsh.exe 3032 netsh.exe -
Drops startup file 6 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7966b724ed64884485cba395b9116702Windows Update.exe Server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7966b724ed64884485cba395b9116702Windows 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 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 -
Drops file in System32 directory 2 IoCs
description 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
description ioc Process File created C:\Program Files (x86)\Explower.exe Server.exe File opened for modification C:\Program Files (x86)\Explower.exe Server.exe -
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 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 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 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Server.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 netsh.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe 2512 Server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2512 Server.exe -
Suspicious use of AdjustPrivilegeToken 37 IoCs
description pid Process Token: SeDebugPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe Token: 33 2512 Server.exe Token: SeIncBasePriorityPrivilege 2512 Server.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2512 wrote to memory of 2176 2512 Server.exe 30 PID 2512 wrote to memory of 2176 2512 Server.exe 30 PID 2512 wrote to memory of 2176 2512 Server.exe 30 PID 2512 wrote to memory of 2176 2512 Server.exe 30 PID 2512 wrote to memory of 2880 2512 Server.exe 32 PID 2512 wrote to memory of 2880 2512 Server.exe 32 PID 2512 wrote to memory of 2880 2512 Server.exe 32 PID 2512 wrote to memory of 2880 2512 Server.exe 32 PID 2512 wrote to memory of 3032 2512 Server.exe 33 PID 2512 wrote to memory of 3032 2512 Server.exe 33 PID 2512 wrote to memory of 3032 2512 Server.exe 33 PID 2512 wrote to memory of 3032 2512 Server.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\Server.exe"C:\Users\Admin\AppData\Local\Temp\Server.exe"1⤵
- Drops startup file
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2512 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2176
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C:\Windows\SysWOW64\netsh.exenetsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe"2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2880
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3032
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
93KB
MD51bc7170bb503ec1dd8b63c6604781f58
SHA1400f928ff7d1b665e36b20d7353d28daf176c74d
SHA256f7306ad6f4594b82052edfb62a61379ed16219c39b6e5153f140b435ee6850a7
SHA512ee0d512c7be1171bf42181cdeb5ca5d8a54017332756d37b2d54a2ca4ca7d2fbef6a859c674ba437141fd7e38f4677aa9e48d0a3c392cbecd1ceaef17bcaec04