healer | 5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151a

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	tz6236.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	v6874zo.exe

Modifies Windows Defender Real-time Protection settings 3 TTPs 12 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\DisableBehaviorMonitoring = "1"	tz6236.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	tz6236.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	v6874zo.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	v6874zo.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	v6874zo.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	v6874zo.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	v6874zo.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	tz6236.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	tz6236.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	tz6236.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	tz6236.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	v6874zo.exe

Modifies Windows Defender TamperProtection settings 3 TTPs 2 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"	tz6236.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	v6874zo.exe

Modifies Windows Defender notification settings 3 TTPs 4 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	tz6236.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	tz6236.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications	v6874zo.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	v6874zo.exe

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 20 IoCs

resource	yara_rule
behavioral1/memory/824-60-0x0000000004A50000-0x0000000004A96000-memory.dmp	family_redline
behavioral1/memory/824-61-0x0000000004C00000-0x0000000004C44000-memory.dmp	family_redline
behavioral1/memory/824-89-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-95-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-93-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-92-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-87-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-83-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-81-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-79-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-77-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-85-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-75-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-73-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-71-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-69-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-67-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-65-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-63-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline
behavioral1/memory/824-62-0x0000000004C00000-0x0000000004C3F000-memory.dmp	family_redline

Redline family
redline

Downloads MZ/PE file 1 IoCs

flow	pid	Process
29	2880	Process not Found

Executes dropped EXE 4 IoCs

pid	Process
4028	zap3826.exe
3052	tz6236.exe
3684	v6874zo.exe
824	w52sz29.exe

Windows security modification 2 TTPs 3 IoCs

defense_evasion trojan

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	v6874zo.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	v6874zo.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	tz6236.exe

Adds Run key to start application 2 TTPs 2 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\\\""	5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	zap3826.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1376	3684	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 5 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	5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zap3826.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	v6874zo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	w52sz29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1984	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3052	tz6236.exe
3052	tz6236.exe
3684	v6874zo.exe
3684	v6874zo.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3052	tz6236.exe
Token: SeDebugPrivilege	3684	v6874zo.exe
Token: SeDebugPrivilege	824	w52sz29.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 4028	4388	5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe	87
PID 4388 wrote to memory of 4028	4388	5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe	87
PID 4388 wrote to memory of 4028	4388	5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe	87
PID 4028 wrote to memory of 3052	4028	zap3826.exe	88
PID 4028 wrote to memory of 3052	4028	zap3826.exe	88
PID 4028 wrote to memory of 3684	4028	zap3826.exe	91
PID 4028 wrote to memory of 3684	4028	zap3826.exe	91
PID 4028 wrote to memory of 3684	4028	zap3826.exe	91
PID 4388 wrote to memory of 824	4388	5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe	95
PID 4388 wrote to memory of 824	4388	5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe	95
PID 4388 wrote to memory of 824	4388	5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe	95

C:\Users\Admin\AppData\Local\Temp\5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe
"C:\Users\Admin\AppData\Local\Temp\5e38f0bf5e990a01a3d000599767a72555dbe2cefaa8131423480edf539a151aN.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4388
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\zap3826.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\zap3826.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4028
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\tz6236.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\tz6236.exe
    3⤵
    - 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:3052
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\v6874zo.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\v6874zo.exe
    3⤵
    - 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
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3684
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 1084
      4⤵
      Program crash
      PID:1376
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\w52sz29.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\w52sz29.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3684 -ip 3684
1⤵
PID:4156

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7QzQzQzg3REUtMjhEMC00Q0M3LUIyOEYtRTc3NEUwRTlCNDkyfSIgdXNlcmlkPSJ7RDAxOUI0NzYtQTYyMS00OUUyLUFDNjItNjVBNzNBMEUwMDA3fSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7MzJEOTgyOEEtMUQwMS00Mjk0LUEyQTAtRUUzNkUzQjBGNEJBfSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4MTUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE1MzQzMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDI4OTE3NTgzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry