amadey | c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693

Modify Existing Service

T1031

Disabling Security Tools

T1089

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	g5698689.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	g5698689.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	g5698689.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	g5698689.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	g5698689.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	g5698689.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-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	h2138118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	rugen.exe

Executes dropped EXE 9 IoCs

pid	Process
2696	x6587239.exe
4860	x4071511.exe
4540	f9663239.exe
4380	g5698689.exe
4112	h2138118.exe
1308	rugen.exe
1452	i9418530.exe
636	rugen.exe
4676	rugen.exe

Loads dropped DLL 1 IoCs

pid	Process
1760	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	g5698689.exe

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.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\\\""	c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	x6587239.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\\\""	x6587239.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	x4071511.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\\\""	x4071511.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{8D0639C6-B948-43DE-9B6A-2839448C55A1}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{8C254B5D-96DC-466B-9E85-F835D7B6C4A7}.catalogItem	svchost.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

pid	Process
3404	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 6 IoCs

pid	Process
4540	f9663239.exe
4540	f9663239.exe
4380	g5698689.exe
4380	g5698689.exe
1452	i9418530.exe
1452	i9418530.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4540	f9663239.exe
Token: SeDebugPrivilege	4380	g5698689.exe
Token: SeDebugPrivilege	1452	i9418530.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4112	h2138118.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2696	1832	c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe	82
PID 1832 wrote to memory of 2696	1832	c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe	82
PID 1832 wrote to memory of 2696	1832	c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe	82
PID 2696 wrote to memory of 4860	2696	x6587239.exe	83
PID 2696 wrote to memory of 4860	2696	x6587239.exe	83
PID 2696 wrote to memory of 4860	2696	x6587239.exe	83
PID 4860 wrote to memory of 4540	4860	x4071511.exe	84
PID 4860 wrote to memory of 4540	4860	x4071511.exe	84
PID 4860 wrote to memory of 4540	4860	x4071511.exe	84
PID 4860 wrote to memory of 4380	4860	x4071511.exe	89
PID 4860 wrote to memory of 4380	4860	x4071511.exe	89
PID 2696 wrote to memory of 4112	2696	x6587239.exe	90
PID 2696 wrote to memory of 4112	2696	x6587239.exe	90
PID 2696 wrote to memory of 4112	2696	x6587239.exe	90
PID 4112 wrote to memory of 1308	4112	h2138118.exe	91
PID 4112 wrote to memory of 1308	4112	h2138118.exe	91
PID 4112 wrote to memory of 1308	4112	h2138118.exe	91
PID 1832 wrote to memory of 1452	1832	c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe	92
PID 1832 wrote to memory of 1452	1832	c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe	92
PID 1832 wrote to memory of 1452	1832	c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe	92
PID 1308 wrote to memory of 3404	1308	rugen.exe	94
PID 1308 wrote to memory of 3404	1308	rugen.exe	94
PID 1308 wrote to memory of 3404	1308	rugen.exe	94
PID 1308 wrote to memory of 2244	1308	rugen.exe	96
PID 1308 wrote to memory of 2244	1308	rugen.exe	96
PID 1308 wrote to memory of 2244	1308	rugen.exe	96
PID 2244 wrote to memory of 4956	2244	cmd.exe	98
PID 2244 wrote to memory of 4956	2244	cmd.exe	98
PID 2244 wrote to memory of 4956	2244	cmd.exe	98
PID 2244 wrote to memory of 884	2244	cmd.exe	99
PID 2244 wrote to memory of 884	2244	cmd.exe	99
PID 2244 wrote to memory of 884	2244	cmd.exe	99
PID 2244 wrote to memory of 2704	2244	cmd.exe	100
PID 2244 wrote to memory of 2704	2244	cmd.exe	100
PID 2244 wrote to memory of 2704	2244	cmd.exe	100
PID 2244 wrote to memory of 3952	2244	cmd.exe	101
PID 2244 wrote to memory of 3952	2244	cmd.exe	101
PID 2244 wrote to memory of 3952	2244	cmd.exe	101
PID 2244 wrote to memory of 4592	2244	cmd.exe	102
PID 2244 wrote to memory of 4592	2244	cmd.exe	102
PID 2244 wrote to memory of 4592	2244	cmd.exe	102
PID 2244 wrote to memory of 4584	2244	cmd.exe	103
PID 2244 wrote to memory of 4584	2244	cmd.exe	103
PID 2244 wrote to memory of 4584	2244	cmd.exe	103
PID 1308 wrote to memory of 1760	1308	rugen.exe	112
PID 1308 wrote to memory of 1760	1308	rugen.exe	112
PID 1308 wrote to memory of 1760	1308	rugen.exe	112

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\c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe
"C:\Users\Admin\AppData\Local\Temp\c1b963f969f6a44e8db29f76d3d7c26f9c67488b145d8ba0e701938289118693.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x6587239.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x6587239.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4071511.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4071511.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:4860
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\f9663239.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\f9663239.exe
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4540
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g5698689.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g5698689.exe
      4⤵
      Modifies Windows Defender Real-time Protection settings
      Executes dropped EXE
      Windows security modification
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4380
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\h2138118.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\h2138118.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4112
  - - C:\Users\Admin\AppData\Local\Temp\200f691d32\rugen.exe
      "C:\Users\Admin\AppData\Local\Temp\200f691d32\rugen.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1308
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN rugen.exe /TR "C:\Users\Admin\AppData\Local\Temp\200f691d32\rugen.exe" /F
        5⤵
        Creates scheduled task(s)
        
        PID:3404
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "rugen.exe" /P "Admin:N"&&CACLS "rugen.exe" /P "Admin:R" /E&&echo Y|CACLS "..\200f691d32" /P "Admin:N"&&CACLS "..\200f691d32" /P "Admin:R" /E&&Exit
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2244
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        6⤵
        
        PID:4956
      - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "rugen.exe" /P "Admin:N"
        6⤵
        
        PID:884
      - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "rugen.exe" /P "Admin:R" /E
        6⤵
        
        PID:2704
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        6⤵
        
        PID:3952
      - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\200f691d32" /P "Admin:N"
        6⤵
        
        PID:4592
      - C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\200f691d32" /P "Admin:R" /E
        6⤵
        
        PID:4584
    - - C:\Windows\SysWOW64\rundll32.exe
        
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
        5⤵
        Loads dropped DLL
        
        PID:1760
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\i9418530.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\i9418530.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1452

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:4440

C:\Users\Admin\AppData\Local\Temp\200f691d32\rugen.exe
C:\Users\Admin\AppData\Local\Temp\200f691d32\rugen.exe
1⤵
- Executes dropped EXE
PID:636

C:\Users\Admin\AppData\Local\Temp\200f691d32\rugen.exe
C:\Users\Admin\AppData\Local\Temp\200f691d32\rugen.exe
1⤵
- Executes dropped EXE
PID:4676

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

System Information Discovery