healer | ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	becX15vc12.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\DisableOnAccessProtection = "1"	becX15vc12.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	becX15vc12.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	becX15vc12.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	becX15vc12.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	becX15vc12.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	becX15vc12.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"	becX15vc12.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	becX15vc12.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	becX15vc12.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/3960-18-0x0000000004CF0000-0x0000000004D36000-memory.dmp	family_redline
behavioral1/memory/3960-20-0x00000000071C0000-0x0000000007204000-memory.dmp	family_redline
behavioral1/memory/3960-22-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-34-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-84-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-82-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-78-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-76-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-74-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-72-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-70-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-66-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-64-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-63-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-58-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-56-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-54-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-52-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-50-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-48-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-46-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-44-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-42-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-40-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-38-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-33-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-30-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-28-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-26-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-24-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-80-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-68-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-60-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-36-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline
behavioral1/memory/3960-21-0x00000000071C0000-0x00000000071FE000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
3196	becX15vc12.exe
3960	cudG33PC72.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"	becX15vc12.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\\\""	ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cudG33PC72.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3196	becX15vc12.exe
3196	becX15vc12.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3196	becX15vc12.exe
Token: SeDebugPrivilege	3960	cudG33PC72.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 3196	4048	ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe	83
PID 4048 wrote to memory of 3196	4048	ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe	83
PID 4048 wrote to memory of 3960	4048	ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe	85
PID 4048 wrote to memory of 3960	4048	ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe	85
PID 4048 wrote to memory of 3960	4048	ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe	85

C:\Users\Admin\AppData\Local\Temp\ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe
"C:\Users\Admin\AppData\Local\Temp\ac0d17b57560884f9ec2886bcb12141b294e8c540f0abe6dbedc53981f2083b2N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4048
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\becX15vc12.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\becX15vc12.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:3196
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cudG33PC72.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cudG33PC72.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3960

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