Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
23/04/2026, 18:35
Behavioral task
behavioral1
Sample
03bc37c41f16d9d57995345f18a4aa4e.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
03bc37c41f16d9d57995345f18a4aa4e.exe
Resource
win11-20260130-en
windows11-21h2-x64
13 signatures
150 seconds
General
- Target 03bc37c41f16d9d57995345f18a4aa4e.exe
- Size 93KB
- Sample260423-w8nffset3p
- SHA256 ee000adc82a8b416383531a5fa34bd319cd674801fed5735db5da2018d658437
- MD5 03bc37c41f16d9d57995345f18a4aa4e
- SHA1 c067f8eb183a9dfc9cd455a882dccd9929cf1da0
- SHA512 da49cc47d038764dd9a10f676b9eeee0412e602fe5f188eed58d31d1fe89d97d7cac11c6eb2ee9f2462a934105bb49aef0023289fabbb053cc830cbc3ac66ca7
- SSDEEP 768:eY3AdBnkpjTMpALPGMtsas88EtNXhe9Y1mxCXxrjEtCdnl2pi1Rz4Rk3XsGdp4gM:CdRkVbPGHz88EbB1pjEwzGi1dDDD4gS
- TLSH T17493D84977E56524E1BF5AF75471F2004F34B48B1602E39D88F219AA1A33AC44F89FEB
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Modifies Windows Firewall 2 TTPs 3 IoCs
pid Process 1064 netsh.exe 1700 netsh.exe 4288 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-1-5-21-312252282-3884318443-358092420-1000\Control Panel\International\Geo\Nation 03bc37c41f16d9d57995345f18a4aa4e.exe - Drops startup file 6 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 File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e09804af3924226843af3b3c23f17c08Windows Update.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e09804af3924226843af3b3c23f17c08Windows 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
pid Process 2344 server.exe - Contacts third-party web service commonly abused for C2 1 TTPs 6 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
flow ioc 7 5.tcp.eu.ngrok.io 10 5.tcp.eu.ngrok.io 62 5.tcp.eu.ngrok.io 87 5.tcp.eu.ngrok.io 104 5.tcp.eu.ngrok.io 107 5.tcp.eu.ngrok.io - 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 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 opened \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 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 - 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 03bc37c41f16d9d57995345f18a4aa4e.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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe 2344 server.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2344 server.exe - Suspicious use of AdjustPrivilegeToken 37 IoCs
description pid Process Token: SeDebugPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe Token: 33 2344 server.exe Token: SeIncBasePriorityPrivilege 2344 server.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4820 wrote to memory of 2344 4820 03bc37c41f16d9d57995345f18a4aa4e.exe 85 PID 2344 wrote to memory of 1064 2344 server.exe 86 PID 2344 wrote to memory of 1700 2344 server.exe 88 PID 2344 wrote to memory of 4288 2344 server.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\03bc37c41f16d9d57995345f18a4aa4e.exe"C:\Users\Admin\AppData\Local\Temp\03bc37c41f16d9d57995345f18a4aa4e.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Users\Admin\AppData\Roaming\server.exe"C:\Users\Admin\AppData\Roaming\server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- 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:2344 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1064
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C:\Windows\SysWOW64\netsh.exenetsh firewall delete allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe"3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1700
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:4288
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Network
MITRE ATT&CK Enterprise v16
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
- Path C:\Users\Admin\AppData\Roaming\app
- Size 5B
- SHA256 9c9701ab918368b615fc6a0dbeb5efa286a232d751982ae70b48ad6914bf01e5
- MD5 c2844bc9e1bd64168a727b0680ae4d90
- SHA1 7bb263540de557f5a4e09c6c78b7dbb314a0df9a
- SHA512 360953bb20d91539022fcb1becf4638970c4452816797a8dca65e3ae4a542302e6e89f0828087caaa63a0750aa78605f8034da7c8663fa4fc677c8f3e53655ed
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\server.exe
- Size 93KB
- SHA256 ee000adc82a8b416383531a5fa34bd319cd674801fed5735db5da2018d658437
- MD5 03bc37c41f16d9d57995345f18a4aa4e
- SHA1 c067f8eb183a9dfc9cd455a882dccd9929cf1da0
- SHA512 da49cc47d038764dd9a10f676b9eeee0412e602fe5f188eed58d31d1fe89d97d7cac11c6eb2ee9f2462a934105bb49aef0023289fabbb053cc830cbc3ac66ca7
- SSDEEP 768:eY3AdBnkpjTMpALPGMtsas88EtNXhe9Y1mxCXxrjEtCdnl2pi1Rz4Rk3XsGdp4gM:CdRkVbPGHz88EbB1pjEwzGi1dDDD4gS
- TLSH T17493D84977E56524E1BF5AF75471F2004F34B48B1602E39D88F219AA1A33AC44F89FEB
- MD5 SHA1 SHA512 SSDEEP TLSH