Analysis
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max time kernel
145s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
29/03/2025, 10:56
Behavioral task
behavioral1
Sample
Server.exe
Resource
win10v2004-20250314-en
General
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Target
Server.exe
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Size
93KB
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MD5
be8230b1a5ba47dacb5b4d4f990f0da2
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SHA1
1c44f6422cdf7117c69ab172625eee8d8a561159
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SHA256
c7bd3056f1c01d0d36cd4ee675677f9dd20be0684fe8520f18df7d303c494e94
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SHA512
26176c2277701fc6b2dd568cb7e9448a83ebfb4f4394469e24ed44511870b3d57e1cd6b6bbe8a305f2bebb7c701330a5be2e37b1f35c19055f43f640c879e402
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SSDEEP
1536:NUwC+xhUa9urgOBPmNvMcjEwzGi1dDGDIgS:NUmUa9urgOkdCi1dYx
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5972 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-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\International\Geo\Nation Server.exe -
Executes dropped EXE 1 IoCs
pid Process 3704 tmpCDBB.tmp.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
flow ioc 25 2.tcp.eu.ngrok.io -
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 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 3 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 tmpCDBB.tmp.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 5936 Server.exe -
Suspicious use of AdjustPrivilegeToken 37 IoCs
description pid Process Token: SeDebugPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe Token: 33 5936 Server.exe Token: SeIncBasePriorityPrivilege 5936 Server.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5936 wrote to memory of 5972 5936 Server.exe 88 PID 5936 wrote to memory of 5972 5936 Server.exe 88 PID 5936 wrote to memory of 5972 5936 Server.exe 88 PID 5936 wrote to memory of 3704 5936 Server.exe 109 PID 5936 wrote to memory of 3704 5936 Server.exe 109 PID 5936 wrote to memory of 3704 5936 Server.exe 109
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 behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5936 -
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:5972
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C:\Users\Admin\AppData\Local\Temp\tmpCDBB.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmpCDBB.tmp.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3704
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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
28KB
MD56c2210ba180f0e1b9d831c3c6c14c8b4
SHA100bebdf704f4cabf254583c6ad87c6e72872b61a
SHA256501c36ac282029ccf7950a4957d4c10ea72fe18f0ad8d6daeabfe628fa4070a7
SHA51226a63ad05199cf45acd7519fbc63945097b4c4a89bb2cdfa4f87ba004e1ce106220b0b99419e656de26d164265b3868a9ce541c71b05d4e4db1a9a1343130e9b