Analysis
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max time kernel
119s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
13-11-2024 16:43
Behavioral task
behavioral1
Sample
aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe
Resource
win10v2004-20241007-en
General
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Target
aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe
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Size
1.8MB
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MD5
59a7581d2e7d549205390c86631c0510
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SHA1
7c01b0421e0b4c3e5df4950e1709d602f1caac29
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SHA256
aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaa
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SHA512
51156b9d223ec10a695731cb3d7c756a5529a4c56853a8f20d264c34ac9f9b90a2f8143ead8687c86fdf72ea251b933b316672718363e9083667a5d1b863a998
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SSDEEP
12288:BHTVhI8jdG+sV1p0x/k9fkQ3KypwkBPKxY9XZdFh29DNDupLdXUoWxOT8oS+:tV35QOk3KWNo34nOOTz
Malware Config
Signatures
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Modifies firewall policy service 3 TTPs 10 IoCs
Processes:
reg.exereg.exereg.exereg.exedescription ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Window Updates\\winupdt2.exe:*:Enabled:Windows Messanger" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications reg.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\Windows Updater.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Updater.exe:*:Enabled:Windows Messanger" reg.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" reg.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe -
Executes dropped EXE 3 IoCs
Processes:
winupdt2.exewinupdt2.exewinupdt2.exepid Process 2328 winupdt2.exe 2540 winupdt2.exe 4972 winupdt2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinUpdt = "C:\\Users\\Admin\\AppData\\Roaming\\Window Updates\\winupdt2.exe" reg.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
winupdt2.exedescription pid Process procid_target PID 2328 set thread context of 2540 2328 winupdt2.exe 91 PID 2328 set thread context of 4972 2328 winupdt2.exe 92 -
Processes:
resource yara_rule behavioral2/memory/3136-0-0x0000000000400000-0x00000000005CA000-memory.dmp upx behavioral2/files/0x0008000000023c80-16.dat upx behavioral2/memory/3136-30-0x0000000000400000-0x00000000005CA000-memory.dmp upx behavioral2/memory/2540-31-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-36-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-34-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4972-44-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/4972-40-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/4972-37-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/2328-48-0x0000000000400000-0x00000000005CA000-memory.dmp upx behavioral2/memory/2540-51-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4972-52-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/2540-53-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-55-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-58-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-60-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-62-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-65-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-67-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-69-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/2540-74-0x0000000000400000-0x000000000045C000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 14 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
cmd.execmd.execmd.execmd.exereg.exereg.exeaac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exewinupdt2.execmd.exereg.exereg.exewinupdt2.exewinupdt2.exereg.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdt2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdt2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdt2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
Modifies registry key 1 TTPs 4 IoCs
Processes:
reg.exereg.exereg.exereg.exepid Process 1664 reg.exe 2996 reg.exe 832 reg.exe 3284 reg.exe -
Suspicious use of AdjustPrivilegeToken 36 IoCs
Processes:
winupdt2.exewinupdt2.exedescription pid Process Token: 1 2540 winupdt2.exe Token: SeCreateTokenPrivilege 2540 winupdt2.exe Token: SeAssignPrimaryTokenPrivilege 2540 winupdt2.exe Token: SeLockMemoryPrivilege 2540 winupdt2.exe Token: SeIncreaseQuotaPrivilege 2540 winupdt2.exe Token: SeMachineAccountPrivilege 2540 winupdt2.exe Token: SeTcbPrivilege 2540 winupdt2.exe Token: SeSecurityPrivilege 2540 winupdt2.exe Token: SeTakeOwnershipPrivilege 2540 winupdt2.exe Token: SeLoadDriverPrivilege 2540 winupdt2.exe Token: SeSystemProfilePrivilege 2540 winupdt2.exe Token: SeSystemtimePrivilege 2540 winupdt2.exe Token: SeProfSingleProcessPrivilege 2540 winupdt2.exe Token: SeIncBasePriorityPrivilege 2540 winupdt2.exe Token: SeCreatePagefilePrivilege 2540 winupdt2.exe Token: SeCreatePermanentPrivilege 2540 winupdt2.exe Token: SeBackupPrivilege 2540 winupdt2.exe Token: SeRestorePrivilege 2540 winupdt2.exe Token: SeShutdownPrivilege 2540 winupdt2.exe Token: SeDebugPrivilege 2540 winupdt2.exe Token: SeAuditPrivilege 2540 winupdt2.exe Token: SeSystemEnvironmentPrivilege 2540 winupdt2.exe Token: SeChangeNotifyPrivilege 2540 winupdt2.exe Token: SeRemoteShutdownPrivilege 2540 winupdt2.exe Token: SeUndockPrivilege 2540 winupdt2.exe Token: SeSyncAgentPrivilege 2540 winupdt2.exe Token: SeEnableDelegationPrivilege 2540 winupdt2.exe Token: SeManageVolumePrivilege 2540 winupdt2.exe Token: SeImpersonatePrivilege 2540 winupdt2.exe Token: SeCreateGlobalPrivilege 2540 winupdt2.exe Token: 31 2540 winupdt2.exe Token: 32 2540 winupdt2.exe Token: 33 2540 winupdt2.exe Token: 34 2540 winupdt2.exe Token: 35 2540 winupdt2.exe Token: SeDebugPrivilege 4972 winupdt2.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exewinupdt2.exewinupdt2.exewinupdt2.exepid Process 3136 aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe 2328 winupdt2.exe 2540 winupdt2.exe 2540 winupdt2.exe 4972 winupdt2.exe 2540 winupdt2.exe -
Suspicious use of WriteProcessMemory 49 IoCs
Processes:
aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.execmd.exewinupdt2.exewinupdt2.execmd.execmd.execmd.execmd.exedescription pid Process procid_target PID 3136 wrote to memory of 2832 3136 aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe 86 PID 3136 wrote to memory of 2832 3136 aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe 86 PID 3136 wrote to memory of 2832 3136 aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe 86 PID 2832 wrote to memory of 1720 2832 cmd.exe 89 PID 2832 wrote to memory of 1720 2832 cmd.exe 89 PID 2832 wrote to memory of 1720 2832 cmd.exe 89 PID 3136 wrote to memory of 2328 3136 aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe 90 PID 3136 wrote to memory of 2328 3136 aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe 90 PID 3136 wrote to memory of 2328 3136 aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe 90 PID 2328 wrote to memory of 2540 2328 winupdt2.exe 91 PID 2328 wrote to memory of 2540 2328 winupdt2.exe 91 PID 2328 wrote to memory of 2540 2328 winupdt2.exe 91 PID 2328 wrote to memory of 2540 2328 winupdt2.exe 91 PID 2328 wrote to memory of 2540 2328 winupdt2.exe 91 PID 2328 wrote to memory of 2540 2328 winupdt2.exe 91 PID 2328 wrote to memory of 2540 2328 winupdt2.exe 91 PID 2328 wrote to memory of 2540 2328 winupdt2.exe 91 PID 2328 wrote to memory of 4972 2328 winupdt2.exe 92 PID 2328 wrote to memory of 4972 2328 winupdt2.exe 92 PID 2328 wrote to memory of 4972 2328 winupdt2.exe 92 PID 2328 wrote to memory of 4972 2328 winupdt2.exe 92 PID 2328 wrote to memory of 4972 2328 winupdt2.exe 92 PID 2328 wrote to memory of 4972 2328 winupdt2.exe 92 PID 2328 wrote to memory of 4972 2328 winupdt2.exe 92 PID 2328 wrote to memory of 4972 2328 winupdt2.exe 92 PID 2540 wrote to memory of 3740 2540 winupdt2.exe 94 PID 2540 wrote to memory of 3740 2540 winupdt2.exe 94 PID 2540 wrote to memory of 3740 2540 winupdt2.exe 94 PID 2540 wrote to memory of 5104 2540 winupdt2.exe 95 PID 2540 wrote to memory of 5104 2540 winupdt2.exe 95 PID 2540 wrote to memory of 5104 2540 winupdt2.exe 95 PID 2540 wrote to memory of 2424 2540 winupdt2.exe 97 PID 2540 wrote to memory of 2424 2540 winupdt2.exe 97 PID 2540 wrote to memory of 2424 2540 winupdt2.exe 97 PID 2540 wrote to memory of 3540 2540 winupdt2.exe 98 PID 2540 wrote to memory of 3540 2540 winupdt2.exe 98 PID 2540 wrote to memory of 3540 2540 winupdt2.exe 98 PID 3740 wrote to memory of 1664 3740 cmd.exe 102 PID 3740 wrote to memory of 1664 3740 cmd.exe 102 PID 3740 wrote to memory of 1664 3740 cmd.exe 102 PID 3540 wrote to memory of 2996 3540 cmd.exe 103 PID 3540 wrote to memory of 2996 3540 cmd.exe 103 PID 3540 wrote to memory of 2996 3540 cmd.exe 103 PID 2424 wrote to memory of 832 2424 cmd.exe 104 PID 2424 wrote to memory of 832 2424 cmd.exe 104 PID 2424 wrote to memory of 832 2424 cmd.exe 104 PID 5104 wrote to memory of 3284 5104 cmd.exe 105 PID 5104 wrote to memory of 3284 5104 cmd.exe 105 PID 5104 wrote to memory of 3284 5104 cmd.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe"C:\Users\Admin\AppData\Local\Temp\aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3136 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KJEDn.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "WinUpdt" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /f3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:1720
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C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2328 -
C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3740 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:1664
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe:*:Enabled:Windows Messanger" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5104 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe:*:Enabled:Windows Messanger" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:3284
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2424 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:832
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:2996
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C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4972
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
152B
MD549bb161b07149b1bda99901c71d98b1f
SHA1e5e3b389c09d551bd8f3a4cf71ee30e566fdf6e2
SHA256734c4f48449a118dbdfbbe4971ecf112b26b2b45d1889678c01dea98eb5767d8
SHA512da09a2af9b7f9528916ab719ed97ee8b61179bba92016eaed64b3e7d6bf08646801aeeb0eb332bdde175eb64b48106f7cf2fe2bf01ea6128753e4ce1d48707be
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Filesize
1.8MB
MD57f6a28a5f1ddb95f9c0aa7bbf4eb62f8
SHA152a2569844e34cfe4be3342ac4989c343c5fce9a
SHA2566b9828895bcb96d5b7f73fe48a55f55c09123f5fd208a2a1f789501055d005d9
SHA5121d939a61abd48596b3272a0ed3a902c37c1e7765affd89f64f4f6e8c876078ee1e701a8e67d9fc97e5fd561b664a896bb0719ee278f914f8bdee579f0407f1cc