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Analysis
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max time kernel
117s -
max time network
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platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
29/09/2024, 19:42
Behavioral task
behavioral1
Sample
Server.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
Server.exe
Resource
win10v2004-20240802-en
General
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Target
Server.exe
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Size
93KB
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MD5
fccac9bf6c83173de191751a3cc75688
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SHA1
5a5f6db3aa85d921707822af7be0f749c00699f6
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SHA256
c33fd04b22feb761253055d2674a112d6b527aa3f78e585d1f2d26df3e8512e7
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SHA512
db453c4df92e6c274a6e558ed2a95ab4b22d17887dcebaf4760f9e7f2e0d6fc7e2cbe05f4e52690a54414bb466e39f85550535bede6e0979fe7e3499f19c487b
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SSDEEP
1536:xkAY3SUFKnOr70txlZbgoGXejEwzGi1dDQDJgS:xkt7KnOr70txIXni1d+G
Malware Config
Signatures
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Disables Task Manager via registry modification
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Modifies Windows Firewall 2 TTPs 7 IoCs
pid Process 1200 netsh.exe 2724 netsh.exe 2696 netsh.exe 2636 netsh.exe 3064 netsh.exe 2220 netsh.exe 324 netsh.exe -
Deletes itself 1 IoCs
pid Process 2952 svchost.exe -
Drops startup file 7 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c4aa78f645d876115299e9c20edace12Windows Update.exe Server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c4aa78f645d876115299e9c20edace12Windows Update.exe Server.exe File opened for modification 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\c4aa78f645d876115299e9c20edace12Windows Update.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\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 -
Executes dropped EXE 4 IoCs
pid Process 2952 svchost.exe 1732 server.exe 2092 svchost.exe 1788 server.exe -
Loads dropped DLL 8 IoCs
pid Process 3032 Server.exe 3032 Server.exe 2952 svchost.exe 2952 svchost.exe 1732 server.exe 1732 server.exe 2092 svchost.exe 2092 svchost.exe -
Drops autorun.inf file 1 TTPs 4 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process 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 File created F:\autorun.inf Server.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Explower.exe Server.exe File opened for modification C:\Windows\SysWOW64\Explower.exe server.exe File opened for modification C:\Windows\SysWOW64\Explower.exe server.exe File created C:\Windows\SysWOW64\Explower.exe Server.exe -
Drops file in Program Files directory 3 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 File opened for modification C:\Program Files (x86)\Explower.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 21 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 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 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 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 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 queried \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 12 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 svchost.exe 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 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 svchost.exe 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 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe 3032 Server.exe -
Suspicious behavior: GetForegroundWindowSpam 3 IoCs
pid Process 3032 Server.exe 1732 server.exe 1788 server.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3032 Server.exe Token: SeDebugPrivilege 1732 server.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3032 Server.exe -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 3032 wrote to memory of 1200 3032 Server.exe 31 PID 3032 wrote to memory of 1200 3032 Server.exe 31 PID 3032 wrote to memory of 1200 3032 Server.exe 31 PID 3032 wrote to memory of 1200 3032 Server.exe 31 PID 3032 wrote to memory of 2724 3032 Server.exe 33 PID 3032 wrote to memory of 2724 3032 Server.exe 33 PID 3032 wrote to memory of 2724 3032 Server.exe 33 PID 3032 wrote to memory of 2724 3032 Server.exe 33 PID 3032 wrote to memory of 2696 3032 Server.exe 34 PID 3032 wrote to memory of 2696 3032 Server.exe 34 PID 3032 wrote to memory of 2696 3032 Server.exe 34 PID 3032 wrote to memory of 2696 3032 Server.exe 34 PID 3032 wrote to memory of 2952 3032 Server.exe 37 PID 3032 wrote to memory of 2952 3032 Server.exe 37 PID 3032 wrote to memory of 2952 3032 Server.exe 37 PID 3032 wrote to memory of 2952 3032 Server.exe 37 PID 2952 wrote to memory of 1732 2952 svchost.exe 38 PID 2952 wrote to memory of 1732 2952 svchost.exe 38 PID 2952 wrote to memory of 1732 2952 svchost.exe 38 PID 2952 wrote to memory of 1732 2952 svchost.exe 38 PID 1732 wrote to memory of 2636 1732 server.exe 39 PID 1732 wrote to memory of 2636 1732 server.exe 39 PID 1732 wrote to memory of 2636 1732 server.exe 39 PID 1732 wrote to memory of 2636 1732 server.exe 39 PID 1732 wrote to memory of 3064 1732 server.exe 41 PID 1732 wrote to memory of 3064 1732 server.exe 41 PID 1732 wrote to memory of 3064 1732 server.exe 41 PID 1732 wrote to memory of 3064 1732 server.exe 41 PID 1732 wrote to memory of 2220 1732 server.exe 43 PID 1732 wrote to memory of 2220 1732 server.exe 43 PID 1732 wrote to memory of 2220 1732 server.exe 43 PID 1732 wrote to memory of 2220 1732 server.exe 43 PID 1732 wrote to memory of 2092 1732 server.exe 45 PID 1732 wrote to memory of 2092 1732 server.exe 45 PID 1732 wrote to memory of 2092 1732 server.exe 45 PID 1732 wrote to memory of 2092 1732 server.exe 45 PID 2092 wrote to memory of 1788 2092 svchost.exe 46 PID 2092 wrote to memory of 1788 2092 svchost.exe 46 PID 2092 wrote to memory of 1788 2092 svchost.exe 46 PID 2092 wrote to memory of 1788 2092 svchost.exe 46 PID 1788 wrote to memory of 324 1788 server.exe 47 PID 1788 wrote to memory of 324 1788 server.exe 47 PID 1788 wrote to memory of 324 1788 server.exe 47 PID 1788 wrote to memory of 324 1788 server.exe 47
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
- Loads dropped DLL
- Drops autorun.inf 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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3032 -
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:1200
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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:2724
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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:2696
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C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2952 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"3⤵
- Drops startup file
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2636
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C:\Windows\SysWOW64\netsh.exenetsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3064
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2220
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C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2092 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"5⤵
- Drops startup file
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1788 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE6⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:324
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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
MD5fccac9bf6c83173de191751a3cc75688
SHA15a5f6db3aa85d921707822af7be0f749c00699f6
SHA256c33fd04b22feb761253055d2674a112d6b527aa3f78e585d1f2d26df3e8512e7
SHA512db453c4df92e6c274a6e558ed2a95ab4b22d17887dcebaf4760f9e7f2e0d6fc7e2cbe05f4e52690a54414bb466e39f85550535bede6e0979fe7e3499f19c487b
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Filesize
44B
MD5298802dff6aa26d4fb941c7ccf5c0849
SHA111e518ca3409f1863ebc2d3f1be9fb701bad52c0
SHA256df99fdbdf7b92b29b1bf1ca4283b4de2e04643b9739d2d1089ab5808e8e5665d
SHA5120301017dfef1b74855d6535f3fd542257689479cb933c2e8742b5b6b94e26107fa38e7fc21bdb83d45184750eced344856092330fb30a1ebbc24b2b9004c8946
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Filesize
5B
MD5112317d572ce0538d2d1b20d7f32170e
SHA1c7f3714c4806b907bcff7f79aa1d1c9373b77d1e
SHA256fd9e9a8be71786826787d6eb9aa28371d09b0515ddf0c19b082fe7bac57a88a9
SHA512265dbebc83c74dc97770e650580b0321144990d133403bab2bc1de4618cde63dfd4fedfa56b5e4e259b510585db0f7a59042c356356c56bea3ac861d4be5337f