Analysis
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max time kernel
150s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31-10-2024 23:33
Behavioral task
behavioral1
Sample
Server.exe
Resource
win10v2004-20241007-en
General
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Target
Server.exe
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Size
37KB
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MD5
367587471af9ef8ea4527323895b6466
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SHA1
817c50792eabf946846006ebd91322a93a664e45
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SHA256
80d6c43e13a4b3d5594b505b15c6d978b5b6bb11a6f1a613dd041f819d399af5
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SHA512
0d33e5c9c66a0d99bf29d27a35d7bb3b537bb6b3e0f236172737f416064bd63c5c5b2e4ee625c2c3c6ecef6e9f372a4f89d9d9375fdf2d26f1200999d8d79f1b
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SSDEEP
384:FKnraio1n7S5pbpQyEfhqH0f3IYykxarAF+rMRTyN/0L+EcoinblneHQM3epzXJk:MnT3pLEfgH0AlkYrM+rMRa8NufMt
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 952 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Server.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation Server.exe -
Drops startup file 2 IoCs
Processes:
server.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dff9ad4032998f4b9cf8d97f6ee36396.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dff9ad4032998f4b9cf8d97f6ee36396.exe server.exe -
Executes dropped EXE 1 IoCs
Processes:
server.exepid process 2808 server.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
server.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dff9ad4032998f4b9cf8d97f6ee36396 = "\"C:\\Windows\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\dff9ad4032998f4b9cf8d97f6ee36396 = "\"C:\\Windows\\server.exe\" .." server.exe -
Drops file in Windows directory 3 IoCs
Processes:
server.exeServer.exedescription ioc process File opened for modification C:\Windows\server.exe server.exe File created C:\Windows\server.exe Server.exe File opened for modification C:\Windows\server.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 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.
Processes:
netsh.exedescription ioc process 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 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
Server.exeserver.exenetsh.exedescription ioc process 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 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
taskmgr.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
taskmgr.exeserver.exepid process 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 1648 taskmgr.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 1648 taskmgr.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 1648 taskmgr.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 2808 server.exe 1648 taskmgr.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
Processes:
server.exetaskmgr.exepid process 2808 server.exe 1648 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 38 IoCs
Processes:
taskmgr.exeserver.exedescription pid process Token: SeDebugPrivilege 1648 taskmgr.exe Token: SeSystemProfilePrivilege 1648 taskmgr.exe Token: SeCreateGlobalPrivilege 1648 taskmgr.exe Token: SeDebugPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe Token: 33 2808 server.exe Token: SeIncBasePriorityPrivilege 2808 server.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
Processes:
taskmgr.exepid process 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
Processes:
taskmgr.exepid process 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe 1648 taskmgr.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
Server.exeserver.exedescription pid process target process PID 4504 wrote to memory of 2808 4504 Server.exe server.exe PID 4504 wrote to memory of 2808 4504 Server.exe server.exe PID 4504 wrote to memory of 2808 4504 Server.exe server.exe PID 2808 wrote to memory of 952 2808 server.exe netsh.exe PID 2808 wrote to memory of 952 2808 server.exe netsh.exe PID 2808 wrote to memory of 952 2808 server.exe netsh.exe
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
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504 -
C:\Windows\server.exe"C:\Windows\server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:952
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1648
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵PID:3364
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
319B
MD5da4fafeffe21b7cb3a8c170ca7911976
SHA150ef77e2451ab60f93f4db88325b897d215be5ad
SHA2567341a4a13e81cbb5b7f39ec47bb45f84836b08b8d8e3ea231d2c7dad982094f7
SHA5120bc24b69460f31a0ebc0628b99908d818ee85feb7e4b663271d9375b30cced0cd55a0bbf8edff1281a4c886ddf4476ffc989c283069cdcb1235ffcb265580fc6
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Filesize
37KB
MD5367587471af9ef8ea4527323895b6466
SHA1817c50792eabf946846006ebd91322a93a664e45
SHA25680d6c43e13a4b3d5594b505b15c6d978b5b6bb11a6f1a613dd041f819d399af5
SHA5120d33e5c9c66a0d99bf29d27a35d7bb3b537bb6b3e0f236172737f416064bd63c5c5b2e4ee625c2c3c6ecef6e9f372a4f89d9d9375fdf2d26f1200999d8d79f1b