amadey | 0e0372526bfe3a43d8dc3cb8af10f60914ccacd20597189b54f7c38e317e0bdb

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	a4326138.exe

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

defense_evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	a4326138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	a4326138.exe

Modifies Windows Defender TamperProtection settings 3 TTPs 1 IoCs

evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	a4326138.exe

Modifies Windows Defender notification settings 3 TTPs 2 IoCs

defense_evasion trojan

Windows Service

Modify Registry

Disable or Modify Tools

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	a4326138.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	b2142649.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	pdates.exe

Executes dropped EXE 6 IoCs

pid	Process
3684	a4326138.exe
4976	b2142649.exe
932	pdates.exe
1312	pdates.exe
1396	pdates.exe
2820	pdates.exe

Windows security modification 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	a4326138.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	v7144898.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 11 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b2142649.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	v7144898.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pdates.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
2388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3684	a4326138.exe
3684	a4326138.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3684	a4326138.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 3684	4672	v7144898.exe	83
PID 4672 wrote to memory of 3684	4672	v7144898.exe	83
PID 4672 wrote to memory of 4976	4672	v7144898.exe	85
PID 4672 wrote to memory of 4976	4672	v7144898.exe	85
PID 4672 wrote to memory of 4976	4672	v7144898.exe	85
PID 4976 wrote to memory of 932	4976	b2142649.exe	86
PID 4976 wrote to memory of 932	4976	b2142649.exe	86
PID 4976 wrote to memory of 932	4976	b2142649.exe	86
PID 932 wrote to memory of 2388	932	pdates.exe	87
PID 932 wrote to memory of 2388	932	pdates.exe	87
PID 932 wrote to memory of 2388	932	pdates.exe	87
PID 932 wrote to memory of 1568	932	pdates.exe	89
PID 932 wrote to memory of 1568	932	pdates.exe	89
PID 932 wrote to memory of 1568	932	pdates.exe	89
PID 1568 wrote to memory of 2872	1568	cmd.exe	91
PID 1568 wrote to memory of 2872	1568	cmd.exe	91
PID 1568 wrote to memory of 2872	1568	cmd.exe	91
PID 1568 wrote to memory of 3248	1568	cmd.exe	92
PID 1568 wrote to memory of 3248	1568	cmd.exe	92
PID 1568 wrote to memory of 3248	1568	cmd.exe	92
PID 1568 wrote to memory of 2468	1568	cmd.exe	93
PID 1568 wrote to memory of 2468	1568	cmd.exe	93
PID 1568 wrote to memory of 2468	1568	cmd.exe	93
PID 1568 wrote to memory of 736	1568	cmd.exe	94
PID 1568 wrote to memory of 736	1568	cmd.exe	94
PID 1568 wrote to memory of 736	1568	cmd.exe	94
PID 1568 wrote to memory of 4960	1568	cmd.exe	95
PID 1568 wrote to memory of 4960	1568	cmd.exe	95
PID 1568 wrote to memory of 4960	1568	cmd.exe	95
PID 1568 wrote to memory of 4264	1568	cmd.exe	96
PID 1568 wrote to memory of 4264	1568	cmd.exe	96
PID 1568 wrote to memory of 4264	1568	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\v7144898.exe
"C:\Users\Admin\AppData\Local\Temp\v7144898.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a4326138.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a4326138.exe
  2⤵
  - Modifies Windows Defender DisableAntiSpyware settings
  - Modifies Windows Defender Real-time Protection settings
  - Modifies Windows Defender TamperProtection settings
  - Modifies Windows Defender notification settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3684
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b2142649.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b2142649.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4976
- - C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
    "C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:932
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN pdates.exe /TR "C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe" /F
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2388
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "pdates.exe" /P "Admin:N"&&CACLS "pdates.exe" /P "Admin:R" /E&&echo Y|CACLS "..\925e7e99c5" /P "Admin:N"&&CACLS "..\925e7e99c5" /P "Admin:R" /E&&Exit
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1568
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2872
    - - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "pdates.exe" /P "Admin:N"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3248
    - - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "pdates.exe" /P "Admin:R" /E
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2468
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:736
    - - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\925e7e99c5" /P "Admin:N"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4960
    - - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\925e7e99c5" /P "Admin:R" /E
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4264

C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
1⤵
- Executes dropped EXE
PID:1312

C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
1⤵
- Executes dropped EXE
PID:1396

C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
1⤵
- Executes dropped EXE
PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry