redline | fa068feb8d5b0988ddba148457fb4a3db8139fa43b82725e3d8e14a5cc34be29

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	a7920945.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\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	a7920945.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	a7920945.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	a7920945.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	a7920945.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	a7920945.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	a7920945.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"	a7920945.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\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications	a7920945.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	a7920945.exe

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

RedLine payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0007000000023e1f-54.dat	family_redline
behavioral1/memory/3024-56-0x0000000000A40000-0x0000000000A6A000-memory.dmp	family_redline

Redline family
redline

Downloads MZ/PE file 1 IoCs

flow	pid	Process
33	5016	Process not Found

Executes dropped EXE 4 IoCs

pid	Process
1124	v2310932.exe
1800	v8057458.exe
3084	a7920945.exe
3024	b4662342.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	a7920945.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	a7920945.exe

Adds Run key to start application 2 TTPs 3 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\\\""	fa068feb8d5b0988ddba148457fb4a3db8139fa43b82725e3d8e14a5cc34be29.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\\\""	v2310932.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\\\""	v8057458.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	fa068feb8d5b0988ddba148457fb4a3db8139fa43b82725e3d8e14a5cc34be29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	v2310932.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	v8057458.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a7920945.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b4662342.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
1352	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3084	a7920945.exe
3084	a7920945.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3084	a7920945.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 1124	2320	fa068feb8d5b0988ddba148457fb4a3db8139fa43b82725e3d8e14a5cc34be29.exe	86
PID 2320 wrote to memory of 1124	2320	fa068feb8d5b0988ddba148457fb4a3db8139fa43b82725e3d8e14a5cc34be29.exe	86
PID 2320 wrote to memory of 1124	2320	fa068feb8d5b0988ddba148457fb4a3db8139fa43b82725e3d8e14a5cc34be29.exe	86
PID 1124 wrote to memory of 1800	1124	v2310932.exe	89
PID 1124 wrote to memory of 1800	1124	v2310932.exe	89
PID 1124 wrote to memory of 1800	1124	v2310932.exe	89
PID 1800 wrote to memory of 3084	1800	v8057458.exe	90
PID 1800 wrote to memory of 3084	1800	v8057458.exe	90
PID 1800 wrote to memory of 3084	1800	v8057458.exe	90
PID 1800 wrote to memory of 3024	1800	v8057458.exe	92
PID 1800 wrote to memory of 3024	1800	v8057458.exe	92
PID 1800 wrote to memory of 3024	1800	v8057458.exe	92

C:\Users\Admin\AppData\Local\Temp\fa068feb8d5b0988ddba148457fb4a3db8139fa43b82725e3d8e14a5cc34be29.exe
"C:\Users\Admin\AppData\Local\Temp\fa068feb8d5b0988ddba148457fb4a3db8139fa43b82725e3d8e14a5cc34be29.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2310932.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2310932.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1124
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\v8057458.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\v8057458.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1800
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\a7920945.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\a7920945.exe
      4⤵
      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:3084
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\b4662342.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\b4662342.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:3024

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4NjAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODIxNjMwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjU3NTk0NTM2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1352

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

5

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery