d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,,C:\\Program Files (x86)\\Microsoft Sync Framework\\rSZIrcfn.exe"	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,,C:\\Program Files (x86)\\Microsoft Sync Framework\\rSZIrcfn.exe"	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

Modify Existing Service

T1031

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	Lgstjcuy.exe

Modifies security service 2 TTPs 4 IoCs

evasion

Modify Registry

Modify Existing Service

T1031

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Start = "4"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wuauserv\Start = "4"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Start = "4"	Lgstjcuy.exe

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Lgstjcuy.exe

Windows security bypass 2 TTPs 6 IoCs

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	Lgstjcuy.exe

Disables Task Manager via registry modification
evasion

Executes dropped EXE 2 IoCs

pid	Process
1340	Lgstjcuy.exe
1508	Lgstjcuy.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1956-58-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1956-59-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1956-56-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1956-64-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1956-65-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1956-87-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1508-88-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1508-89-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pyFwaDGM.exe	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pyFwaDGM.exe	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pyFwaDGM.exe	Lgstjcuy.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pyFwaDGM.exe	Lgstjcuy.exe

Loads dropped DLL 3 IoCs

pid	Process
1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
1340	Lgstjcuy.exe

Windows security modification 2 TTPs 6 IoCs

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	Lgstjcuy.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	Lgstjcuy.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\xFCCIieu = "C:\\Users\\Admin\\AppData\\Local\\Google\\lttFOvQt.exe"	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	Lgstjcuy.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\xFCCIieu = "C:\\Users\\Admin\\AppData\\Local\\Google\\lttFOvQt.exe"	Lgstjcuy.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Lgstjcuy.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 1340 set thread context of 1508	1340	Lgstjcuy.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Sync Framework\rSZIrcfn.exe	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
File opened for modification	C:\Program Files (x86)\Microsoft Sync Framework\rSZIrcfn.exe	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
1340	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe
1508	Lgstjcuy.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
Token: SeDebugPrivilege	1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
Token: SeTcbPrivilege	1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
Token: SeSecurityPrivilege	1508	Lgstjcuy.exe
Token: SeDebugPrivilege	1508	Lgstjcuy.exe
Token: SeTcbPrivilege	1508	Lgstjcuy.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
1340	Lgstjcuy.exe
1340	Lgstjcuy.exe
1340	Lgstjcuy.exe
1340	Lgstjcuy.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 2000 wrote to memory of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 2000 wrote to memory of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 2000 wrote to memory of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 2000 wrote to memory of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 2000 wrote to memory of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 2000 wrote to memory of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 2000 wrote to memory of 1956	2000	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	28
PID 1956 wrote to memory of 1340	1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	29
PID 1956 wrote to memory of 1340	1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	29
PID 1956 wrote to memory of 1340	1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	29
PID 1956 wrote to memory of 1340	1956	d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe	29
PID 1340 wrote to memory of 1508	1340	Lgstjcuy.exe	30
PID 1340 wrote to memory of 1508	1340	Lgstjcuy.exe	30
PID 1340 wrote to memory of 1508	1340	Lgstjcuy.exe	30
PID 1340 wrote to memory of 1508	1340	Lgstjcuy.exe	30
PID 1340 wrote to memory of 1508	1340	Lgstjcuy.exe	30
PID 1340 wrote to memory of 1508	1340	Lgstjcuy.exe	30
PID 1340 wrote to memory of 1508	1340	Lgstjcuy.exe	30
PID 1340 wrote to memory of 1508	1340	Lgstjcuy.exe	30

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Lgstjcuy.exe

C:\Users\Admin\AppData\Local\Temp\d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
"C:\Users\Admin\AppData\Local\Temp\d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
  C:\Users\Admin\AppData\Local\Temp\d421f63bed136350c7a0e504341393d2311f518090f72a534de6c107b5bd4af7.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops startup file
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1956
- - C:\Users\Admin\AppData\Local\Temp\Lgstjcuy.exe
    "C:\Users\Admin\AppData\Local\Temp\Lgstjcuy.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1340
  - - C:\Users\Admin\AppData\Local\Temp\Lgstjcuy.exe
      C:\Users\Admin\AppData\Local\Temp\Lgstjcuy.exe
      4⤵
      Modifies firewall policy service
      Modifies security service
      UAC bypass
      Windows security bypass
      Executes dropped EXE
      Drops startup file
      Windows security modification
      Adds Run key to start application
      Checks whether UAC is enabled
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      System policy modification
      PID:1508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry