Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25/10/2024, 08:43
Behavioral task
behavioral1
Sample
Server.exe
Resource
win7-20240903-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
Server.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
14 signatures
150 seconds
General
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Target
Server.exe
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Size
93KB
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MD5
3715d6ae97ccefef54ecc91e874aea8c
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SHA1
4a690c46ffa912deb60359655a021a297fb41383
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SHA256
f04597d7204b14de98b22b9495e5bbc25701b51bc7e8878a8ac0d4fc5a123c23
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SHA512
4eb40bde8bac03010bbcacc75a61d2734a64690dfc0f5c179f4ce4311ecbc545164390307c4243b507c035db1e003cbd09bc5c38126cd078a644cfd99bf6918b
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SSDEEP
768:6Y3wM7yZnDQMMpAZrGSt6udttXy4sahkGJiXxrjEtCdnl2pi1Rz4Rk31sGdpygS7:6M+ZD3rGWNd7dhkhjEwzGi1dDFDygS
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 3156 netsh.exe 1624 netsh.exe 1936 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation Server.exe -
Drops startup file 6 IoCs
description ioc Process 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 File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6145612c2bacdafee10132b5a5ecf5b1Windows Update.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6145612c2bacdafee10132b5a5ecf5b1Windows Update.exe server.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe server.exe -
Executes dropped EXE 1 IoCs
pid Process 2304 server.exe -
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 -
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 -
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 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 -
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 Server.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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe 2304 server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2304 server.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe Token: 33 2304 server.exe Token: SeIncBasePriorityPrivilege 2304 server.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3648 wrote to memory of 2304 3648 Server.exe 87 PID 3648 wrote to memory of 2304 3648 Server.exe 87 PID 3648 wrote to memory of 2304 3648 Server.exe 87 PID 2304 wrote to memory of 3156 2304 server.exe 89 PID 2304 wrote to memory of 3156 2304 server.exe 89 PID 2304 wrote to memory of 3156 2304 server.exe 89 PID 2304 wrote to memory of 1624 2304 server.exe 95 PID 2304 wrote to memory of 1624 2304 server.exe 95 PID 2304 wrote to memory of 1624 2304 server.exe 95 PID 2304 wrote to memory of 1936 2304 server.exe 96 PID 2304 wrote to memory of 1936 2304 server.exe 96 PID 2304 wrote to memory of 1936 2304 server.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\Server.exe"C:\Users\Admin\AppData\Local\Temp\Server.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3648 -
C:\ProgramData\server.exe"C:\ProgramData\server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops autorun.inf file
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3156
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C:\Windows\SysWOW64\netsh.exenetsh firewall delete allowedprogram "C:\ProgramData\server.exe"3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1624
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\ProgramData\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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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
MD53715d6ae97ccefef54ecc91e874aea8c
SHA14a690c46ffa912deb60359655a021a297fb41383
SHA256f04597d7204b14de98b22b9495e5bbc25701b51bc7e8878a8ac0d4fc5a123c23
SHA5124eb40bde8bac03010bbcacc75a61d2734a64690dfc0f5c179f4ce4311ecbc545164390307c4243b507c035db1e003cbd09bc5c38126cd078a644cfd99bf6918b
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Filesize
408B
MD5661cab77d3b907e8057f2e689e995af3
SHA15d1a0ee9c5ee7a7a90d56d00c10dc0e679bee01c
SHA2568f27f95ad7c09f2e05d7960e78ef8cd935c1262e9657883a75d70dcb877592d2
SHA5122523b316bd79fed0e9b3d73f46959f3dfe270cf950f34bd9d49fe4113a2ae46d0cd00224d848bc40c0d8c55449e2dccc4b4278ba4809c0ca9ede1ac75673fc67
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Filesize
5B
MD5cac4598fdc0f92181616d12833eb6ca1
SHA180a7b7a46a0e8e674b782b9eb569e5430a69c84b
SHA256275918973c23ad700f278c69cc03c9c82ec9f4d9ed0f53111ad22bec197ff440
SHA51201a7556bfcce6d9d8251aadc7f6e6169fdd0477d487ce88729c44bfe8b85b2eee500985d553c0479765ef5b5c6dc3517c0305efb9089814c3f8a9ea6fc51c713