amadey | aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	4p276L.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	4p276L.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	4p276L.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	4p276L.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	4p276L.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	4p276L.exe

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 8 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4p276L.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1I12M2.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2N0772.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b72c293e34.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3B60p.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 16 IoCs

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

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3B60p.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4p276L.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2N0772.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2N0772.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b72c293e34.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b72c293e34.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3B60p.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4p276L.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1I12M2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1I12M2.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	1I12M2.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	skotes.exe

Executes dropped EXE 10 IoCs

pid	Process
636	O6k20.exe
4268	i5D85.exe
4468	1I12M2.exe
2292	skotes.exe
4324	2N0772.exe
4892	b72c293e34.exe
4556	3B60p.exe
4008	4p276L.exe
3164	skotes.exe
880	skotes.exe

Identifies Wine through registry keys 2 TTPs 8 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	4p276L.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	1I12M2.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	2N0772.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	b72c293e34.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	3B60p.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	4p276L.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	4p276L.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\\\""	aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.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\\\""	O6k20.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\\\""	i5D85.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

pid	Process
4468	1I12M2.exe
2292	skotes.exe
4324	2N0772.exe
4892	b72c293e34.exe
4556	3B60p.exe
4008	4p276L.exe
3164	skotes.exe
880	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	1I12M2.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1732	4324	WerFault.exe	86
3788	4324	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 9 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	3B60p.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4p276L.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1I12M2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2N0772.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b72c293e34.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	O6k20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	i5D85.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
4468	1I12M2.exe
4468	1I12M2.exe
2292	skotes.exe
2292	skotes.exe
4324	2N0772.exe
4324	2N0772.exe
4892	b72c293e34.exe
4892	b72c293e34.exe
4556	3B60p.exe
4556	3B60p.exe
4008	4p276L.exe
4008	4p276L.exe
4008	4p276L.exe
4008	4p276L.exe
3164	skotes.exe
3164	skotes.exe
880	skotes.exe
880	skotes.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4008	4p276L.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4468	1I12M2.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 636	4804	aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe	82
PID 4804 wrote to memory of 636	4804	aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe	82
PID 4804 wrote to memory of 636	4804	aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe	82
PID 636 wrote to memory of 4268	636	O6k20.exe	83
PID 636 wrote to memory of 4268	636	O6k20.exe	83
PID 636 wrote to memory of 4268	636	O6k20.exe	83
PID 4268 wrote to memory of 4468	4268	i5D85.exe	84
PID 4268 wrote to memory of 4468	4268	i5D85.exe	84
PID 4268 wrote to memory of 4468	4268	i5D85.exe	84
PID 4468 wrote to memory of 2292	4468	1I12M2.exe	85
PID 4468 wrote to memory of 2292	4468	1I12M2.exe	85
PID 4468 wrote to memory of 2292	4468	1I12M2.exe	85
PID 4268 wrote to memory of 4324	4268	i5D85.exe	86
PID 4268 wrote to memory of 4324	4268	i5D85.exe	86
PID 4268 wrote to memory of 4324	4268	i5D85.exe	86
PID 2292 wrote to memory of 4892	2292	skotes.exe	91
PID 2292 wrote to memory of 4892	2292	skotes.exe	91
PID 2292 wrote to memory of 4892	2292	skotes.exe	91
PID 636 wrote to memory of 4556	636	O6k20.exe	101
PID 636 wrote to memory of 4556	636	O6k20.exe	101
PID 636 wrote to memory of 4556	636	O6k20.exe	101
PID 4804 wrote to memory of 4008	4804	aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe	102
PID 4804 wrote to memory of 4008	4804	aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe	102
PID 4804 wrote to memory of 4008	4804	aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe	102

C:\Users\Admin\AppData\Local\Temp\aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe
"C:\Users\Admin\AppData\Local\Temp\aeffa7f6d93e105575b864dc6c89b9119bbbc71655bf12d4eda660e77c432120.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\O6k20.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\O6k20.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:636
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\i5D85.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\i5D85.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4268
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1I12M2.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1I12M2.exe
      4⤵
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Checks BIOS information in registry
      Checks computer location settings
      Executes dropped EXE
      Identifies Wine through registry keys
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of FindShellTrayWindow
      Suspicious use of WriteProcessMemory
      PID:4468
    - - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
        
        "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
        5⤵
        Identifies VirtualBox via ACPI registry values (likely anti-VM)
        Checks BIOS information in registry
        Checks computer location settings
        Executes dropped EXE
        Identifies Wine through registry keys
        Suspicious use of NtSetInformationThreadHideFromDebugger
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:2292
      - C:\Users\Admin\AppData\Local\Temp\1012483001\b72c293e34.exe
        
        "C:\Users\Admin\AppData\Local\Temp\1012483001\b72c293e34.exe"
        6⤵
        Identifies VirtualBox via ACPI registry values (likely anti-VM)
        Checks BIOS information in registry
        Executes dropped EXE
        Identifies Wine through registry keys
        Suspicious use of NtSetInformationThreadHideFromDebugger
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        
        PID:4892
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2N0772.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2N0772.exe
      4⤵
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Checks BIOS information in registry
      Executes dropped EXE
      Identifies Wine through registry keys
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4324
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 1628
        5⤵
        Program crash
        
        PID:1732
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 1656
        5⤵
        Program crash
        
        PID:3788
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3B60p.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3B60p.exe
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:4556
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4p276L.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4p276L.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Windows security modification
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4324 -ip 4324
1⤵
PID:2488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4324 -ip 4324
1⤵
PID:4440

C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3164

C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:880

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

T1543.003

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

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion