amadey | 5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	h0887917.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	h0887917.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	h0887917.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	h0887917.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	h0887917.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	h0887917.exe

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

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation	danke.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation	g7520787.exe

Executes dropped EXE 7 IoCs

pid	Process
4268	x7675588.exe
3944	g7520787.exe
4236	danke.exe
4540	h0887917.exe
1564	j0792244.exe
1776	danke.exe
4224	danke.exe

Loads dropped DLL 1 IoCs

pid	Process
4260	rundll32.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	h0887917.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_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	x7675588.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe
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\\\""	5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	x7675588.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{F066B90C-3BB3-4FC6-A489-6571BF74280F}.catalogItem	svchost.exe

Launches sc.exe 1 IoCs

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

pid	Process
2804	sc.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

pid	Process
4596	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4540	h0887917.exe
4540	h0887917.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4540	h0887917.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3944	g7520787.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 4268	3728	5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe	81
PID 3728 wrote to memory of 4268	3728	5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe	81
PID 3728 wrote to memory of 4268	3728	5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe	81
PID 4268 wrote to memory of 3944	4268	x7675588.exe	82
PID 4268 wrote to memory of 3944	4268	x7675588.exe	82
PID 4268 wrote to memory of 3944	4268	x7675588.exe	82
PID 3944 wrote to memory of 4236	3944	g7520787.exe	83
PID 3944 wrote to memory of 4236	3944	g7520787.exe	83
PID 3944 wrote to memory of 4236	3944	g7520787.exe	83
PID 4268 wrote to memory of 4540	4268	x7675588.exe	84
PID 4268 wrote to memory of 4540	4268	x7675588.exe	84
PID 4236 wrote to memory of 4596	4236	danke.exe	85
PID 4236 wrote to memory of 4596	4236	danke.exe	85
PID 4236 wrote to memory of 4596	4236	danke.exe	85
PID 4236 wrote to memory of 4432	4236	danke.exe	87
PID 4236 wrote to memory of 4432	4236	danke.exe	87
PID 4236 wrote to memory of 4432	4236	danke.exe	87
PID 4432 wrote to memory of 2420	4432	cmd.exe	89
PID 4432 wrote to memory of 2420	4432	cmd.exe	89
PID 4432 wrote to memory of 2420	4432	cmd.exe	89
PID 4432 wrote to memory of 5048	4432	cmd.exe	90
PID 4432 wrote to memory of 5048	4432	cmd.exe	90
PID 4432 wrote to memory of 5048	4432	cmd.exe	90
PID 4432 wrote to memory of 2228	4432	cmd.exe	91
PID 4432 wrote to memory of 2228	4432	cmd.exe	91
PID 4432 wrote to memory of 2228	4432	cmd.exe	91
PID 4432 wrote to memory of 1896	4432	cmd.exe	92
PID 4432 wrote to memory of 1896	4432	cmd.exe	92
PID 4432 wrote to memory of 1896	4432	cmd.exe	92
PID 4432 wrote to memory of 3384	4432	cmd.exe	93
PID 4432 wrote to memory of 3384	4432	cmd.exe	93
PID 4432 wrote to memory of 3384	4432	cmd.exe	93
PID 4432 wrote to memory of 4692	4432	cmd.exe	94
PID 4432 wrote to memory of 4692	4432	cmd.exe	94
PID 4432 wrote to memory of 4692	4432	cmd.exe	94
PID 3728 wrote to memory of 1564	3728	5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe	106
PID 3728 wrote to memory of 1564	3728	5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe	106
PID 3728 wrote to memory of 1564	3728	5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe	106
PID 4236 wrote to memory of 4260	4236	danke.exe	114
PID 4236 wrote to memory of 4260	4236	danke.exe	114
PID 4236 wrote to memory of 4260	4236	danke.exe	114

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe
"C:\Users\Admin\AppData\Local\Temp\5542a8ed0568b09684d8dac0e253c967c5d30cc5144e48c67eb8ee3e2c239d3a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x7675588.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x7675588.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4268
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\g7520787.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\g7520787.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3944
  - - C:\Users\Admin\AppData\Local\Temp\3ec1f323b5\danke.exe
      "C:\Users\Admin\AppData\Local\Temp\3ec1f323b5\danke.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:4236
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN danke.exe /TR "C:\Users\Admin\AppData\Local\Temp\3ec1f323b5\danke.exe" /F
        5⤵
        Creates scheduled task(s)
        
        PID:4596
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "danke.exe" /P "Admin:N"&&CACLS "danke.exe" /P "Admin:R" /E&&echo Y|CACLS "..\3ec1f323b5" /P "Admin:N"&&CACLS "..\3ec1f323b5" /P "Admin:R" /E&&Exit
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4432
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        6⤵
        
        PID:2420
      - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "danke.exe" /P "Admin:N"
        6⤵
        
        PID:5048
      - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "danke.exe" /P "Admin:R" /E
        6⤵
        
        PID:2228
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        6⤵
        
        PID:1896
      - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\3ec1f323b5" /P "Admin:N"
        6⤵
        
        PID:3384
      - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\3ec1f323b5" /P "Admin:R" /E
        6⤵
        
        PID:4692
    - - C:\Windows\SysWOW64\rundll32.exe
        
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
        5⤵
        Loads dropped DLL
        
        PID:4260
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\h0887917.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\h0887917.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4540
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\j0792244.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\j0792244.exe
  2⤵
  - Executes dropped EXE
  PID:1564

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1260

C:\Users\Admin\AppData\Local\Temp\3ec1f323b5\danke.exe
C:\Users\Admin\AppData\Local\Temp\3ec1f323b5\danke.exe
1⤵
- Executes dropped EXE
PID:1776

C:\Users\Admin\AppData\Local\Temp\3ec1f323b5\danke.exe
C:\Users\Admin\AppData\Local\Temp\3ec1f323b5\danke.exe
1⤵
- Executes dropped EXE
PID:4224

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery