healer | d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	ctnq60hx82.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	beDg75pz28.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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	beDg75pz28.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	ctnq60hx82.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	ctnq60hx82.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	ctnq60hx82.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	ctnq60hx82.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	ctnq60hx82.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	ctnq60hx82.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\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	ctnq60hx82.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\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	beDg75pz28.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications	ctnq60hx82.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	ctnq60hx82.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/1364-65-0x0000000002290000-0x00000000022D6000-memory.dmp	family_redline
behavioral1/memory/1364-66-0x0000000005160000-0x00000000051A4000-memory.dmp	family_redline
behavioral1/memory/1364-74-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-84-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-100-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-98-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-96-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-94-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-92-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-90-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-88-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-82-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-80-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-78-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-76-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-86-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-72-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-70-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-68-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline
behavioral1/memory/1364-67-0x0000000005160000-0x000000000519E000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 4 IoCs

pid	Process
4216	ptyG0654jk.exe
468	beDg75pz28.exe
3600	ctnq60hx82.exe
1364	drLL19dc39.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	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	beDg75pz28.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	ctnq60hx82.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\\\""	d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.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\\\""	ptyG0654jk.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3484	468	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 4 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	beDg75pz28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	drLL19dc39.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ptyG0654jk.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
468	beDg75pz28.exe
468	beDg75pz28.exe
3600	ctnq60hx82.exe
3600	ctnq60hx82.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	468	beDg75pz28.exe
Token: SeDebugPrivilege	3600	ctnq60hx82.exe
Token: SeDebugPrivilege	1364	drLL19dc39.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 4216	1912	d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe	82
PID 1912 wrote to memory of 4216	1912	d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe	82
PID 1912 wrote to memory of 4216	1912	d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe	82
PID 4216 wrote to memory of 468	4216	ptyG0654jk.exe	83
PID 4216 wrote to memory of 468	4216	ptyG0654jk.exe	83
PID 4216 wrote to memory of 468	4216	ptyG0654jk.exe	83
PID 4216 wrote to memory of 3600	4216	ptyG0654jk.exe	87
PID 4216 wrote to memory of 3600	4216	ptyG0654jk.exe	87
PID 1912 wrote to memory of 1364	1912	d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe	88
PID 1912 wrote to memory of 1364	1912	d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe	88
PID 1912 wrote to memory of 1364	1912	d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe	88

C:\Users\Admin\AppData\Local\Temp\d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe
"C:\Users\Admin\AppData\Local\Temp\d6c58df1b986a1e6f59a3d73a9afb47161e2b0330941f700300c8d027bf0a6e4.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ptyG0654jk.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ptyG0654jk.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4216
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\beDg75pz28.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\beDg75pz28.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:468
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 468 -s 1080
      4⤵
      Program crash
      PID:3484
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ctnq60hx82.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ctnq60hx82.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:3600
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\drLL19dc39.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\drLL19dc39.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 468 -ip 468
1⤵
PID:3012

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