amadey | 00fa85d1b7df666624e986fae4bb65de8602d49d09f37e7a8a04bb52470febb3

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	g4922914.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"	g4922914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	g4922914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	g4922914.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	g4922914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	g4922914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	g4922914.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"	g4922914.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	g4922914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	g4922914.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/0x000a000000023b9b-43.dat	family_redline
behavioral1/memory/1800-45-0x0000000000990000-0x00000000009C0000-memory.dmp	family_redline

Redline family
redline

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	h1483029.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	saves.exe

Executes dropped EXE 10 IoCs

pid	Process
3292	x3960684.exe
4668	x7600373.exe
3612	x3983882.exe
2728	g4922914.exe
1696	h1483029.exe
4012	saves.exe
1800	i4983280.exe
5076	saves.exe
3380	saves.exe
4968	saves.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"	g4922914.exe

Adds Run key to start application 2 TTPs 4 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\\\""	00fa85d1b7df666624e986fae4bb65de8602d49d09f37e7a8a04bb52470febb3.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\\\""	x3960684.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\\\""	x7600373.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\\\""	x3983882.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 15 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	h1483029.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00fa85d1b7df666624e986fae4bb65de8602d49d09f37e7a8a04bb52470febb3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x7600373.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x3983882.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	saves.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x3960684.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	i4983280.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
2500	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2728	g4922914.exe
2728	g4922914.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	g4922914.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 3636 wrote to memory of 3292	3636	00fa85d1b7df666624e986fae4bb65de8602d49d09f37e7a8a04bb52470febb3.exe	85
PID 3636 wrote to memory of 3292	3636	00fa85d1b7df666624e986fae4bb65de8602d49d09f37e7a8a04bb52470febb3.exe	85
PID 3636 wrote to memory of 3292	3636	00fa85d1b7df666624e986fae4bb65de8602d49d09f37e7a8a04bb52470febb3.exe	85
PID 3292 wrote to memory of 4668	3292	x3960684.exe	86
PID 3292 wrote to memory of 4668	3292	x3960684.exe	86
PID 3292 wrote to memory of 4668	3292	x3960684.exe	86
PID 4668 wrote to memory of 3612	4668	x7600373.exe	88
PID 4668 wrote to memory of 3612	4668	x7600373.exe	88
PID 4668 wrote to memory of 3612	4668	x7600373.exe	88
PID 3612 wrote to memory of 2728	3612	x3983882.exe	89
PID 3612 wrote to memory of 2728	3612	x3983882.exe	89
PID 3612 wrote to memory of 1696	3612	x3983882.exe	91
PID 3612 wrote to memory of 1696	3612	x3983882.exe	91
PID 3612 wrote to memory of 1696	3612	x3983882.exe	91
PID 1696 wrote to memory of 4012	1696	h1483029.exe	92
PID 1696 wrote to memory of 4012	1696	h1483029.exe	92
PID 1696 wrote to memory of 4012	1696	h1483029.exe	92
PID 4668 wrote to memory of 1800	4668	x7600373.exe	93
PID 4668 wrote to memory of 1800	4668	x7600373.exe	93
PID 4668 wrote to memory of 1800	4668	x7600373.exe	93
PID 4012 wrote to memory of 2500	4012	saves.exe	94
PID 4012 wrote to memory of 2500	4012	saves.exe	94
PID 4012 wrote to memory of 2500	4012	saves.exe	94
PID 4012 wrote to memory of 2476	4012	saves.exe	95
PID 4012 wrote to memory of 2476	4012	saves.exe	95
PID 4012 wrote to memory of 2476	4012	saves.exe	95
PID 2476 wrote to memory of 5004	2476	cmd.exe	98
PID 2476 wrote to memory of 5004	2476	cmd.exe	98
PID 2476 wrote to memory of 5004	2476	cmd.exe	98
PID 2476 wrote to memory of 4000	2476	cmd.exe	99
PID 2476 wrote to memory of 4000	2476	cmd.exe	99
PID 2476 wrote to memory of 4000	2476	cmd.exe	99
PID 2476 wrote to memory of 3684	2476	cmd.exe	100
PID 2476 wrote to memory of 3684	2476	cmd.exe	100
PID 2476 wrote to memory of 3684	2476	cmd.exe	100
PID 2476 wrote to memory of 1096	2476	cmd.exe	101
PID 2476 wrote to memory of 1096	2476	cmd.exe	101
PID 2476 wrote to memory of 1096	2476	cmd.exe	101
PID 2476 wrote to memory of 3184	2476	cmd.exe	102
PID 2476 wrote to memory of 3184	2476	cmd.exe	102
PID 2476 wrote to memory of 3184	2476	cmd.exe	102
PID 2476 wrote to memory of 4648	2476	cmd.exe	103
PID 2476 wrote to memory of 4648	2476	cmd.exe	103
PID 2476 wrote to memory of 4648	2476	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\00fa85d1b7df666624e986fae4bb65de8602d49d09f37e7a8a04bb52470febb3.exe
"C:\Users\Admin\AppData\Local\Temp\00fa85d1b7df666624e986fae4bb65de8602d49d09f37e7a8a04bb52470febb3.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3636
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x3960684.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x3960684.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3292
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x7600373.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x7600373.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4668
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\x3983882.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\x3983882.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3612
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\g4922914.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\g4922914.exe
        5⤵
        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:2728
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\h1483029.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\h1483029.exe
        5⤵
        Checks computer location settings
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1696
      - C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
        
        "C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe"
        6⤵
        Checks computer location settings
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:4012
        
        C:\Windows\SysWOW64\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN saves.exe /TR "C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe" /F
        7⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2500
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "saves.exe" /P "Admin:N"&&CACLS "saves.exe" /P "Admin:R" /E&&echo Y|CACLS "..\b40d11255d" /P "Admin:N"&&CACLS "..\b40d11255d" /P "Admin:R" /E&&Exit
        7⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2476
        
        C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:5004
        
        C:\Windows\SysWOW64\cacls.exe
        
        CACLS "saves.exe" /P "Admin:N"
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:4000
        
        C:\Windows\SysWOW64\cacls.exe
        
        CACLS "saves.exe" /P "Admin:R" /E
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:3684
        
        C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:1096
        
        C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\b40d11255d" /P "Admin:N"
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:3184
        
        C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\b40d11255d" /P "Admin:R" /E
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:4648
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\i4983280.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\i4983280.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1800

C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
1⤵
- Executes dropped EXE
PID:5076

C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
1⤵
- Executes dropped EXE
PID:3380

C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
1⤵
- Executes dropped EXE
PID:4968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry