healer | bf00733c84913b65d7fe57ffd51f9b09447a74ff087e1089d63af16c926e6d63

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	aWP26RV.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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	aWP26RV.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	aWP26RV.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	aWP26RV.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	aWP26RV.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	aWP26RV.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	aWP26RV.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\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	aWP26RV.exe

Modifies Windows Defender notification settings 3 TTPs 2 IoCs

defense_evasion trojan

Windows Service

Modify Registry

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	aWP26RV.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications	aWP26RV.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/1072-58-0x00000000023B0000-0x00000000023F6000-memory.dmp	family_redline
behavioral1/memory/1072-59-0x0000000002620000-0x0000000002664000-memory.dmp	family_redline
behavioral1/memory/1072-63-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-67-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-91-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-87-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-86-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-83-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-81-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-79-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-77-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-73-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-71-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-69-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-65-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-93-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-89-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-75-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-61-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline
behavioral1/memory/1072-60-0x0000000002620000-0x000000000265E000-memory.dmp	family_redline

Redline family
redline

Downloads MZ/PE file 1 IoCs

flow	pid	Process
11	4100	Process not Found

Executes dropped EXE 3 IoCs

pid	Process
320	nsG14Qn.exe
2276	aWP26RV.exe
1072	blk75Tp.exe

Windows security modification 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	aWP26RV.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	aWP26RV.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\\\""	bf00733c84913b65d7fe57ffd51f9b09447a74ff087e1089d63af16c926e6d63.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\\\""	nsG14Qn.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1868	2276	WerFault.exe	88

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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	blk75Tp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bf00733c84913b65d7fe57ffd51f9b09447a74ff087e1089d63af16c926e6d63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nsG14Qn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aWP26RV.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
2376	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2276	aWP26RV.exe
2276	aWP26RV.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	aWP26RV.exe
Token: SeDebugPrivilege	1072	blk75Tp.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 320	5048	bf00733c84913b65d7fe57ffd51f9b09447a74ff087e1089d63af16c926e6d63.exe	87
PID 5048 wrote to memory of 320	5048	bf00733c84913b65d7fe57ffd51f9b09447a74ff087e1089d63af16c926e6d63.exe	87
PID 5048 wrote to memory of 320	5048	bf00733c84913b65d7fe57ffd51f9b09447a74ff087e1089d63af16c926e6d63.exe	87
PID 320 wrote to memory of 2276	320	nsG14Qn.exe	88
PID 320 wrote to memory of 2276	320	nsG14Qn.exe	88
PID 320 wrote to memory of 2276	320	nsG14Qn.exe	88
PID 320 wrote to memory of 1072	320	nsG14Qn.exe	97
PID 320 wrote to memory of 1072	320	nsG14Qn.exe	97
PID 320 wrote to memory of 1072	320	nsG14Qn.exe	97

C:\Users\Admin\AppData\Local\Temp\bf00733c84913b65d7fe57ffd51f9b09447a74ff087e1089d63af16c926e6d63.exe
"C:\Users\Admin\AppData\Local\Temp\bf00733c84913b65d7fe57ffd51f9b09447a74ff087e1089d63af16c926e6d63.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsG14Qn.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsG14Qn.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:320
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\aWP26RV.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\aWP26RV.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:2276
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 1084
      4⤵
      Program crash
      PID:1868
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\blk75Tp.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\blk75Tp.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1072

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU1NzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODAxNjUyMzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODE1ODM5MzQzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2276 -ip 2276
1⤵
PID:3468

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