a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4

Processes:

omvoohoav.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	omvoohoav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	omvoohoav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	omvoohoav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	omvoohoav.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

Processes:

omvoohoav.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{474C5A43-534e-4c4b-474C-5A43534E4c4b}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	omvoohoav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{474C5A43-534e-4c4b-474C-5A43534E4c4b}\IsInstalled = "1"	omvoohoav.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{474C5A43-534e-4c4b-474C-5A43534E4c4b}\StubPath = "C:\\Windows\\system32\\atdegup.exe"	omvoohoav.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{474C5A43-534e-4c4b-474C-5A43534E4c4b}	omvoohoav.exe

Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs

persistence

Image File Execution Options Injection

T1546.012

Processes:

omvoohoav.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\aproaxeap-eacex.exe"	omvoohoav.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	omvoohoav.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a"	omvoohoav.exe

Executes dropped EXE 2 IoCs

Processes:

omvoohoav.exeomvoohoav.exe

pid process

2708 omvoohoav.exe
2524 omvoohoav.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

omvoohoav.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	omvoohoav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	omvoohoav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	omvoohoav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	omvoohoav.exe

Indicator Removal: Clear Persistence 1 TTPs 1 IoCs

remove IFEO.

defense_evasion

Clear Persistence

T1070.009

Processes:

omvoohoav.exe

description	ioc	process
Delete value	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger	omvoohoav.exe

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

Processes:

omvoohoav.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	omvoohoav.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	omvoohoav.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\pvohear.dll"	omvoohoav.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	omvoohoav.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}	omvoohoav.exe

Drops file in System32 directory 9 IoCs

Processes:

a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exeomvoohoav.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\omvoohoav.exe	a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe
File opened for modification	C:\Windows\SysWOW64\aproaxeap-eacex.exe	omvoohoav.exe
File created	C:\Windows\SysWOW64\aproaxeap-eacex.exe	omvoohoav.exe
File opened for modification	C:\Windows\SysWOW64\omvoohoav.exe	omvoohoav.exe
File created	C:\Windows\SysWOW64\omvoohoav.exe	a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe
File opened for modification	C:\Windows\SysWOW64\atdegup.exe	omvoohoav.exe
File created	C:\Windows\SysWOW64\atdegup.exe	omvoohoav.exe
File opened for modification	C:\Windows\SysWOW64\pvohear.dll	omvoohoav.exe
File created	C:\Windows\SysWOW64\pvohear.dll	omvoohoav.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.

discovery

System Language Discovery

T1614.001

Processes:

a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exeomvoohoav.exeomvoohoav.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omvoohoav.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omvoohoav.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

omvoohoav.exeomvoohoav.exe

pid	process
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2524	omvoohoav.exe
2524	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe
2708	omvoohoav.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exeomvoohoav.exe

description	pid	process
Token: SeDebugPrivilege	2244	a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe
Token: SeDebugPrivilege	2708	omvoohoav.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exeomvoohoav.exe

description	pid	process	target process
PID 2244 wrote to memory of 2708	2244	a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe	omvoohoav.exe
PID 2244 wrote to memory of 2708	2244	a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe	omvoohoav.exe
PID 2244 wrote to memory of 2708	2244	a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe	omvoohoav.exe
PID 2708 wrote to memory of 616	2708	omvoohoav.exe	winlogon.exe
PID 2708 wrote to memory of 2524	2708	omvoohoav.exe	omvoohoav.exe
PID 2708 wrote to memory of 2524	2708	omvoohoav.exe	omvoohoav.exe
PID 2708 wrote to memory of 2524	2708	omvoohoav.exe	omvoohoav.exe
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE
PID 2708 wrote to memory of 3416	2708	omvoohoav.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3416
- C:\Users\Admin\AppData\Local\Temp\a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe
  "C:\Users\Admin\AppData\Local\Temp\a682ca54976034954cf37942a5af3e8d4004fcad800ee3f0e8374b2858a312e4.exe"
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2244
- - C:\Windows\SysWOW64\omvoohoav.exe
    "C:\Windows\system32\omvoohoav.exe"
    3⤵
    - Windows security bypass
    - Boot or Logon Autostart Execution: Active Setup
    - Event Triggered Execution: Image File Execution Options Injection
    - Executes dropped EXE
    - Windows security modification
    - Indicator Removal: Clear Persistence
    - Modifies WinLogon
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2708
  - - C:\Windows\SysWOW64\omvoohoav.exe
      --k33p
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

Clear Persistence

Modify Registry

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery