healer | ed364a0a5ed2b3d00214914f9bda1f3e393a6b17186b79a9644bfadfb791a950

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	az303392.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\Policies\Microsoft\Windows Defender\Real-Time Protection	az303392.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	az303392.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	az303392.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	az303392.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	az303392.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	az303392.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"	az303392.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	az303392.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	az303392.exe

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

RedLine payload 35 IoCs

resource	yara_rule
behavioral1/memory/3936-41-0x0000000002900000-0x000000000293C000-memory.dmp	family_redline
behavioral1/memory/3936-43-0x0000000004E20000-0x0000000004E5A000-memory.dmp	family_redline
behavioral1/memory/3936-57-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-55-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-107-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-103-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-101-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-99-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-97-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-95-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-93-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-91-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-89-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-87-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-85-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-83-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-79-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-77-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-75-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-73-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-71-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-69-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-67-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-65-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-63-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-61-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-59-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-53-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-51-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-49-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-105-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-81-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-47-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-45-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline
behavioral1/memory/3936-44-0x0000000004E20000-0x0000000004E55000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 6 IoCs

pid	Process
1032	ki151541.exe
4732	ki639301.exe
4588	ki684940.exe
3888	ki630022.exe
4496	az303392.exe
3936	bu541062.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"	az303392.exe

Adds Run key to start application 2 TTPs 5 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\\\""	ed364a0a5ed2b3d00214914f9bda1f3e393a6b17186b79a9644bfadfb791a950.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\\\""	ki151541.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	ki639301.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup3 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP003.TMP\\\""	ki684940.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup4 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP004.TMP\\\""	ki630022.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
3872	sc.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	ki630022.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bu541062.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ed364a0a5ed2b3d00214914f9bda1f3e393a6b17186b79a9644bfadfb791a950.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ki151541.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ki639301.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ki684940.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4496	az303392.exe
4496	az303392.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	az303392.exe
Token: SeDebugPrivilege	3936	bu541062.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 1032	4768	ed364a0a5ed2b3d00214914f9bda1f3e393a6b17186b79a9644bfadfb791a950.exe	82
PID 4768 wrote to memory of 1032	4768	ed364a0a5ed2b3d00214914f9bda1f3e393a6b17186b79a9644bfadfb791a950.exe	82
PID 4768 wrote to memory of 1032	4768	ed364a0a5ed2b3d00214914f9bda1f3e393a6b17186b79a9644bfadfb791a950.exe	82
PID 1032 wrote to memory of 4732	1032	ki151541.exe	83
PID 1032 wrote to memory of 4732	1032	ki151541.exe	83
PID 1032 wrote to memory of 4732	1032	ki151541.exe	83
PID 4732 wrote to memory of 4588	4732	ki639301.exe	84
PID 4732 wrote to memory of 4588	4732	ki639301.exe	84
PID 4732 wrote to memory of 4588	4732	ki639301.exe	84
PID 4588 wrote to memory of 3888	4588	ki684940.exe	85
PID 4588 wrote to memory of 3888	4588	ki684940.exe	85
PID 4588 wrote to memory of 3888	4588	ki684940.exe	85
PID 3888 wrote to memory of 4496	3888	ki630022.exe	86
PID 3888 wrote to memory of 4496	3888	ki630022.exe	86
PID 3888 wrote to memory of 3936	3888	ki630022.exe	99
PID 3888 wrote to memory of 3936	3888	ki630022.exe	99
PID 3888 wrote to memory of 3936	3888	ki630022.exe	99

C:\Users\Admin\AppData\Local\Temp\ed364a0a5ed2b3d00214914f9bda1f3e393a6b17186b79a9644bfadfb791a950.exe
"C:\Users\Admin\AppData\Local\Temp\ed364a0a5ed2b3d00214914f9bda1f3e393a6b17186b79a9644bfadfb791a950.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4768
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ki151541.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ki151541.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1032
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ki639301.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ki639301.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4732
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\ki684940.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\ki684940.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4588
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\ki630022.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\ki630022.exe
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3888
      - C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\az303392.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\az303392.exe
        6⤵
        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:4496
      - C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\bu541062.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\bu541062.exe
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:3936

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:3872

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