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
03-12-2024 15:48
Behavioral task
behavioral1
Sample
Server.exe
Resource
win7-20240903-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
Server.exe
Resource
win10v2004-20241007-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
997c314aa305bf6cf42f3d9a17fa18af
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SHA1
b1252e606043a1a37a84472f9ed715cab85ac3fb
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SHA256
e434889a91f948654d30f9333b334c7cbd9169ab8f5c8b72e445a105a3261d0d
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SHA512
55b7f1ae7bc640871c95ca516fcb84150fcbf9bc65260efdf5bda7167b04a2137e33a5710a94bb1c9fc0ca6cb741220e29295db1e89c46c6a9f1d98ef0966272
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SSDEEP
1536:2hkJGOdXj/u1ByN/49jEwzGi1dDaDhgS:2hkjj/u1B6gKi1dMe
Malware Config
Signatures
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Disables Task Manager via registry modification
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1664 netsh.exe -
Drops startup file 2 IoCs
description 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 -
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 3 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 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 2 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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe 1944 Server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1944 Server.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe Token: 33 1944 Server.exe Token: SeIncBasePriorityPrivilege 1944 Server.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1944 wrote to memory of 1664 1944 Server.exe 31 PID 1944 wrote to memory of 1664 1944 Server.exe 31 PID 1944 wrote to memory of 1664 1944 Server.exe 31 PID 1944 wrote to memory of 1664 1944 Server.exe 31
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:1944 -
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:1664
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Network
MITRE ATT&CK Enterprise v15
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Downloads
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Filesize
93KB
MD5997c314aa305bf6cf42f3d9a17fa18af
SHA1b1252e606043a1a37a84472f9ed715cab85ac3fb
SHA256e434889a91f948654d30f9333b334c7cbd9169ab8f5c8b72e445a105a3261d0d
SHA51255b7f1ae7bc640871c95ca516fcb84150fcbf9bc65260efdf5bda7167b04a2137e33a5710a94bb1c9fc0ca6cb741220e29295db1e89c46c6a9f1d98ef0966272