Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-11-2024 23:14
Static task
static1
Behavioral task
behavioral1
Sample
45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe
Resource
win10v2004-20241007-en
General
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Target
45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe
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Size
1.8MB
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MD5
cd84709fa0e9c1533e765d22798cb4f4
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SHA1
2028106423757e2f2835a76476fb576d05d14e84
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SHA256
45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec
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SHA512
7e863e2da43665192f4d3d1849f7427df17a535fd59983af3ecde606a01e27b5063ca3128a920b71a85f88e53b23b47b949d92c009888b4f8728db7d79e45cf1
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SSDEEP
49152:ALIUXQgBiI6i2KFU0yBfM7a9QDosGeo403e0CpcKYGIDlWIwRBOn5PvGYKMf/1ZE:cIUXQgBiI6i2KFU0yBfM7a9QDosGeo4J
Malware Config
Signatures
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Modifies firewall policy service 3 TTPs 10 IoCs
Processes:
reg.exereg.exereg.exereg.exedescription ioc process 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 reg.exe 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 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\csrs.exe = "C:\\Users\\Admin\\AppData\\Roaming\\csrs.exe:*:Enabled:Windows Messanger" 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\svhost32.exe = "C:\\Users\\Admin\\AppData\\Roaming\\svhost32.exe:*:Enabled:Windows Messanger" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe -
Executes dropped EXE 3 IoCs
Processes:
JEork.execsrs.execsrs.exepid process 4332 JEork.exe 3964 csrs.exe 1092 csrs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrs = "C:\\Users\\Admin\\AppData\\Roaming\\csrs.exe" reg.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
csrs.exedescription pid process target process PID 3964 set thread context of 1092 3964 csrs.exe csrs.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\JEork.exe upx behavioral2/memory/4332-11-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral2/memory/1092-40-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-43-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-44-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-45-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4332-51-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral2/memory/1092-53-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-56-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-59-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-61-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-63-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-66-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-68-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-70-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/1092-75-0x0000000000400000-0x000000000045D000-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:
45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.execsrs.execmd.execmd.execmd.execmd.execmd.exereg.execsrs.exereg.exereg.exeJEork.exereg.exereg.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrs.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 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 csrs.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 JEork.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.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 1252 reg.exe 2284 reg.exe 1492 reg.exe 3428 reg.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
Processes:
csrs.exedescription pid process Token: 1 1092 csrs.exe Token: SeCreateTokenPrivilege 1092 csrs.exe Token: SeAssignPrimaryTokenPrivilege 1092 csrs.exe Token: SeLockMemoryPrivilege 1092 csrs.exe Token: SeIncreaseQuotaPrivilege 1092 csrs.exe Token: SeMachineAccountPrivilege 1092 csrs.exe Token: SeTcbPrivilege 1092 csrs.exe Token: SeSecurityPrivilege 1092 csrs.exe Token: SeTakeOwnershipPrivilege 1092 csrs.exe Token: SeLoadDriverPrivilege 1092 csrs.exe Token: SeSystemProfilePrivilege 1092 csrs.exe Token: SeSystemtimePrivilege 1092 csrs.exe Token: SeProfSingleProcessPrivilege 1092 csrs.exe Token: SeIncBasePriorityPrivilege 1092 csrs.exe Token: SeCreatePagefilePrivilege 1092 csrs.exe Token: SeCreatePermanentPrivilege 1092 csrs.exe Token: SeBackupPrivilege 1092 csrs.exe Token: SeRestorePrivilege 1092 csrs.exe Token: SeShutdownPrivilege 1092 csrs.exe Token: SeDebugPrivilege 1092 csrs.exe Token: SeAuditPrivilege 1092 csrs.exe Token: SeSystemEnvironmentPrivilege 1092 csrs.exe Token: SeChangeNotifyPrivilege 1092 csrs.exe Token: SeRemoteShutdownPrivilege 1092 csrs.exe Token: SeUndockPrivilege 1092 csrs.exe Token: SeSyncAgentPrivilege 1092 csrs.exe Token: SeEnableDelegationPrivilege 1092 csrs.exe Token: SeManageVolumePrivilege 1092 csrs.exe Token: SeImpersonatePrivilege 1092 csrs.exe Token: SeCreateGlobalPrivilege 1092 csrs.exe Token: 31 1092 csrs.exe Token: 32 1092 csrs.exe Token: 33 1092 csrs.exe Token: 34 1092 csrs.exe Token: 35 1092 csrs.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.execsrs.execsrs.exepid process 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe 3964 csrs.exe 1092 csrs.exe 1092 csrs.exe 1092 csrs.exe -
Suspicious use of WriteProcessMemory 44 IoCs
Processes:
45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.execmd.execsrs.execsrs.execmd.execmd.execmd.execmd.exedescription pid process target process PID 2248 wrote to memory of 4332 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe JEork.exe PID 2248 wrote to memory of 4332 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe JEork.exe PID 2248 wrote to memory of 4332 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe JEork.exe PID 2248 wrote to memory of 224 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe cmd.exe PID 2248 wrote to memory of 224 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe cmd.exe PID 2248 wrote to memory of 224 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe cmd.exe PID 224 wrote to memory of 532 224 cmd.exe reg.exe PID 224 wrote to memory of 532 224 cmd.exe reg.exe PID 224 wrote to memory of 532 224 cmd.exe reg.exe PID 2248 wrote to memory of 3964 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe csrs.exe PID 2248 wrote to memory of 3964 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe csrs.exe PID 2248 wrote to memory of 3964 2248 45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe csrs.exe PID 3964 wrote to memory of 1092 3964 csrs.exe csrs.exe PID 3964 wrote to memory of 1092 3964 csrs.exe csrs.exe PID 3964 wrote to memory of 1092 3964 csrs.exe csrs.exe PID 3964 wrote to memory of 1092 3964 csrs.exe csrs.exe PID 3964 wrote to memory of 1092 3964 csrs.exe csrs.exe PID 3964 wrote to memory of 1092 3964 csrs.exe csrs.exe PID 3964 wrote to memory of 1092 3964 csrs.exe csrs.exe PID 3964 wrote to memory of 1092 3964 csrs.exe csrs.exe PID 1092 wrote to memory of 1680 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 1680 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 1680 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 3384 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 3384 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 3384 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 3132 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 3132 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 3132 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 2032 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 2032 1092 csrs.exe cmd.exe PID 1092 wrote to memory of 2032 1092 csrs.exe cmd.exe PID 1680 wrote to memory of 1252 1680 cmd.exe reg.exe PID 1680 wrote to memory of 1252 1680 cmd.exe reg.exe PID 1680 wrote to memory of 1252 1680 cmd.exe reg.exe PID 3384 wrote to memory of 1492 3384 cmd.exe reg.exe PID 3384 wrote to memory of 1492 3384 cmd.exe reg.exe PID 3384 wrote to memory of 1492 3384 cmd.exe reg.exe PID 3132 wrote to memory of 3428 3132 cmd.exe reg.exe PID 3132 wrote to memory of 3428 3132 cmd.exe reg.exe PID 3132 wrote to memory of 3428 3132 cmd.exe reg.exe PID 2032 wrote to memory of 2284 2032 cmd.exe reg.exe PID 2032 wrote to memory of 2284 2032 cmd.exe reg.exe PID 2032 wrote to memory of 2284 2032 cmd.exe reg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe"C:\Users\Admin\AppData\Local\Temp\45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Users\Admin\AppData\Local\Temp\JEork.exe"C:\Users\Admin\AppData\Local\Temp\JEork.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4332
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GBuxh.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:224 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "csrs" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe" /f3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:532
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C:\Users\Admin\AppData\Roaming\csrs.exe"C:\Users\Admin\AppData\Roaming\csrs.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3964 -
C:\Users\Admin\AppData\Roaming\csrs.exeC:\Users\Admin\AppData\Roaming\csrs.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1092 -
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:1680 -
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:1252
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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\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3384 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:1492
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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:3132 -
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:3428
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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\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:2284
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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
130B
MD534a635bb69f9dc2d8e8ceba2f6b25308
SHA166bbd6b4eb975af0a799c6be7aaed6917f5df10c
SHA256eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a
SHA512ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545
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Filesize
12KB
MD5466773bfcbd01059584cdae36e3c281c
SHA181e68615ef27cf363d6fe96582433c8a7ce8043b
SHA25621f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105
SHA5121088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f
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Filesize
1.8MB
MD5b3ccb78b5db737c5bcf8505c815164ff
SHA1ddeba23ece9f2051a0bfcd19055e9afe0face773
SHA256c5cb4dcea2cea5dac811e94e7c62928c7016e713a5829e48923450eb59057919
SHA512f273b5f93f598052b8a3e9b05fd8a2bbb0cb87a1ece9999deb3e61db4361812dee1d738f56b2f14a080cd977436ed340cc0cc264bb0ab048845b43d4d1808e65