Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
27/07/2024, 10:29
Static task
static1
Behavioral task
behavioral1
Sample
b6fe30a0f715b0f59389372500a99f30N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
b6fe30a0f715b0f59389372500a99f30N.exe
Resource
win10v2004-20240709-en
General
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Target
b6fe30a0f715b0f59389372500a99f30N.exe
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Size
1.8MB
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MD5
b6fe30a0f715b0f59389372500a99f30
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SHA1
1dfc16e687fc158d6c70dc92d039359962ab3566
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SHA256
131d03ed80106f2bf316a1cc646e9a67a0e8efda67a950feebffbcc190d21872
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SHA512
893d8a7b2891dd16d37bcd8d7ab7745cc2d6384f2182b2aec24f516bfe36ee17d483cbf1f164b79939c6dcee2087bbfc01e278905c10d2f2a6b42f993e80de2d
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SSDEEP
49152:ALIUXQgBiI6i2KFU0yBfM7a9QDosGeo403e0CpcKYGIDlWIwRBOn5PvGYKMf/1ZY:cIUXQgBiI6i2KFU0yBfM7a9QDosGeo4X
Malware Config
Signatures
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Modifies firewall policy service 3 TTPs 10 IoCs
description ioc Process 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 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 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\AuthorizedApplications 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 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 -
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-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation b6fe30a0f715b0f59389372500a99f30N.exe -
Executes dropped EXE 3 IoCs
pid Process 3524 lkGQy.exe 1820 csrs.exe 4796 csrs.exe -
resource yara_rule behavioral2/files/0x00080000000234a4-7.dat upx behavioral2/memory/3524-11-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral2/memory/4796-40-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-44-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-46-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-45-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/3524-52-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral2/memory/4796-53-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-55-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-56-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-59-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-61-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-63-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-65-0x0000000000400000-0x000000000045D000-memory.dmp upx behavioral2/memory/4796-73-0x0000000000400000-0x000000000045D000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrs = "C:\\Users\\Admin\\AppData\\Roaming\\csrs.exe" reg.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1820 set thread context of 4796 1820 csrs.exe 94 -
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.
description ioc Process 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 lkGQy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.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 b6fe30a0f715b0f59389372500a99f30N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.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 reg.exe -
Modifies registry key 1 TTPs 4 IoCs
pid Process 3508 reg.exe 1924 reg.exe 692 reg.exe 1456 reg.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: 1 4796 csrs.exe Token: SeCreateTokenPrivilege 4796 csrs.exe Token: SeAssignPrimaryTokenPrivilege 4796 csrs.exe Token: SeLockMemoryPrivilege 4796 csrs.exe Token: SeIncreaseQuotaPrivilege 4796 csrs.exe Token: SeMachineAccountPrivilege 4796 csrs.exe Token: SeTcbPrivilege 4796 csrs.exe Token: SeSecurityPrivilege 4796 csrs.exe Token: SeTakeOwnershipPrivilege 4796 csrs.exe Token: SeLoadDriverPrivilege 4796 csrs.exe Token: SeSystemProfilePrivilege 4796 csrs.exe Token: SeSystemtimePrivilege 4796 csrs.exe Token: SeProfSingleProcessPrivilege 4796 csrs.exe Token: SeIncBasePriorityPrivilege 4796 csrs.exe Token: SeCreatePagefilePrivilege 4796 csrs.exe Token: SeCreatePermanentPrivilege 4796 csrs.exe Token: SeBackupPrivilege 4796 csrs.exe Token: SeRestorePrivilege 4796 csrs.exe Token: SeShutdownPrivilege 4796 csrs.exe Token: SeDebugPrivilege 4796 csrs.exe Token: SeAuditPrivilege 4796 csrs.exe Token: SeSystemEnvironmentPrivilege 4796 csrs.exe Token: SeChangeNotifyPrivilege 4796 csrs.exe Token: SeRemoteShutdownPrivilege 4796 csrs.exe Token: SeUndockPrivilege 4796 csrs.exe Token: SeSyncAgentPrivilege 4796 csrs.exe Token: SeEnableDelegationPrivilege 4796 csrs.exe Token: SeManageVolumePrivilege 4796 csrs.exe Token: SeImpersonatePrivilege 4796 csrs.exe Token: SeCreateGlobalPrivilege 4796 csrs.exe Token: 31 4796 csrs.exe Token: 32 4796 csrs.exe Token: 33 4796 csrs.exe Token: 34 4796 csrs.exe Token: 35 4796 csrs.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 2684 b6fe30a0f715b0f59389372500a99f30N.exe 1820 csrs.exe 4796 csrs.exe 4796 csrs.exe 4796 csrs.exe -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 2684 wrote to memory of 3524 2684 b6fe30a0f715b0f59389372500a99f30N.exe 87 PID 2684 wrote to memory of 3524 2684 b6fe30a0f715b0f59389372500a99f30N.exe 87 PID 2684 wrote to memory of 3524 2684 b6fe30a0f715b0f59389372500a99f30N.exe 87 PID 2684 wrote to memory of 1460 2684 b6fe30a0f715b0f59389372500a99f30N.exe 90 PID 2684 wrote to memory of 1460 2684 b6fe30a0f715b0f59389372500a99f30N.exe 90 PID 2684 wrote to memory of 1460 2684 b6fe30a0f715b0f59389372500a99f30N.exe 90 PID 1460 wrote to memory of 3756 1460 cmd.exe 92 PID 1460 wrote to memory of 3756 1460 cmd.exe 92 PID 1460 wrote to memory of 3756 1460 cmd.exe 92 PID 2684 wrote to memory of 1820 2684 b6fe30a0f715b0f59389372500a99f30N.exe 93 PID 2684 wrote to memory of 1820 2684 b6fe30a0f715b0f59389372500a99f30N.exe 93 PID 2684 wrote to memory of 1820 2684 b6fe30a0f715b0f59389372500a99f30N.exe 93 PID 1820 wrote to memory of 4796 1820 csrs.exe 94 PID 1820 wrote to memory of 4796 1820 csrs.exe 94 PID 1820 wrote to memory of 4796 1820 csrs.exe 94 PID 1820 wrote to memory of 4796 1820 csrs.exe 94 PID 1820 wrote to memory of 4796 1820 csrs.exe 94 PID 1820 wrote to memory of 4796 1820 csrs.exe 94 PID 1820 wrote to memory of 4796 1820 csrs.exe 94 PID 1820 wrote to memory of 4796 1820 csrs.exe 94 PID 4796 wrote to memory of 972 4796 csrs.exe 95 PID 4796 wrote to memory of 972 4796 csrs.exe 95 PID 4796 wrote to memory of 972 4796 csrs.exe 95 PID 4796 wrote to memory of 3112 4796 csrs.exe 97 PID 4796 wrote to memory of 3112 4796 csrs.exe 97 PID 4796 wrote to memory of 3112 4796 csrs.exe 97 PID 4796 wrote to memory of 2568 4796 csrs.exe 98 PID 4796 wrote to memory of 2568 4796 csrs.exe 98 PID 4796 wrote to memory of 2568 4796 csrs.exe 98 PID 4796 wrote to memory of 4576 4796 csrs.exe 99 PID 4796 wrote to memory of 4576 4796 csrs.exe 99 PID 4796 wrote to memory of 4576 4796 csrs.exe 99 PID 3112 wrote to memory of 3508 3112 cmd.exe 103 PID 3112 wrote to memory of 3508 3112 cmd.exe 103 PID 3112 wrote to memory of 3508 3112 cmd.exe 103 PID 4576 wrote to memory of 1924 4576 cmd.exe 104 PID 4576 wrote to memory of 1924 4576 cmd.exe 104 PID 4576 wrote to memory of 1924 4576 cmd.exe 104 PID 972 wrote to memory of 692 972 cmd.exe 105 PID 972 wrote to memory of 692 972 cmd.exe 105 PID 972 wrote to memory of 692 972 cmd.exe 105 PID 2568 wrote to memory of 1456 2568 cmd.exe 106 PID 2568 wrote to memory of 1456 2568 cmd.exe 106 PID 2568 wrote to memory of 1456 2568 cmd.exe 106
Processes
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C:\Users\Admin\AppData\Local\Temp\b6fe30a0f715b0f59389372500a99f30N.exe"C:\Users\Admin\AppData\Local\Temp\b6fe30a0f715b0f59389372500a99f30N.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2684 -
C:\Users\Admin\AppData\Local\Temp\lkGQy.exe"C:\Users\Admin\AppData\Local\Temp\lkGQy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3524
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\olHds.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1460 -
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:3756
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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:1820 -
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:4796 -
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:972 -
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:692
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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:3112 -
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:3508
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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:2568 -
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:1456
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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:4576 -
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:1924
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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
12KB
MD5466773bfcbd01059584cdae36e3c281c
SHA181e68615ef27cf363d6fe96582433c8a7ce8043b
SHA25621f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105
SHA5121088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f
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Filesize
130B
MD534a635bb69f9dc2d8e8ceba2f6b25308
SHA166bbd6b4eb975af0a799c6be7aaed6917f5df10c
SHA256eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a
SHA512ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545
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Filesize
1.8MB
MD512e3ebf6bcf8b59adbea3c5dc8d7de94
SHA1020278b5a17c7d9984d50980ee36684848f222fe
SHA25617b53939fadbca78276b68b64e482158481e74386e79f47638ac2b7bfa846493
SHA512a43dd0f9f3f79dd03cee550670188a2ff16349f3b73020828258af3fa22fe38240df0ce770e73b165816ae5b8eb8d991e72d3ef3a2c3d8fdb5fbb08033035e60