amadey | b6f12e1681c93ba7210b921f2c7b8ca2a0ef662b0545f60821e1ef7ccc13cd90

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	fb6cbd1986.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	fb6cbd1986.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	fb6cbd1986.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	fb6cbd1986.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	fb6cbd1986.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	fb6cbd1986.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 5 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ad6a6f9416.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	5ff47f9d38.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	fb6cbd1986.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 10 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	5ff47f9d38.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	fb6cbd1986.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fb6cbd1986.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
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	ad6a6f9416.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ad6a6f9416.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5ff47f9d38.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	file.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	skotes.exe

Executes dropped EXE 8 IoCs

pid	Process
4824	skotes.exe
4892	sxqnmytm.exe
2672	sxqnmytm.exe
3460	ad6a6f9416.exe
4144	5ff47f9d38.exe
2368	fb6cbd1986.exe
820	ActiveISO.exe
4288	ActiveISO.exe

Identifies Wine through registry keys 2 TTPs 5 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-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	ad6a6f9416.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	5ff47f9d38.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	fb6cbd1986.exe

Loads dropped DLL 24 IoCs

pid	Process
2672	sxqnmytm.exe
820	ActiveISO.exe
820	ActiveISO.exe
820	ActiveISO.exe
820	ActiveISO.exe
820	ActiveISO.exe
820	ActiveISO.exe
820	ActiveISO.exe
820	ActiveISO.exe
820	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
1120	DriverProtectv1.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	fb6cbd1986.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	fb6cbd1986.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\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ad6a6f9416.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004486001\\ad6a6f9416.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5ff47f9d38.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004487001\\5ff47f9d38.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fb6cbd1986.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004489001\\fb6cbd1986.exe"	skotes.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
5084	file.exe
4824	skotes.exe
3460	ad6a6f9416.exe
4144	5ff47f9d38.exe
2368	fb6cbd1986.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4288 set thread context of 4488	4288	ActiveISO.exe	110

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	file.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
3864	3460	WerFault.exe	97
756	3460	WerFault.exe	97

System Location Discovery: System Language Discovery 1 TTPs 8 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sxqnmytm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sxqnmytm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad6a6f9416.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5ff47f9d38.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb6cbd1986.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
5084	file.exe
5084	file.exe
4824	skotes.exe
4824	skotes.exe
3460	ad6a6f9416.exe
3460	ad6a6f9416.exe
4144	5ff47f9d38.exe
4144	5ff47f9d38.exe
2368	fb6cbd1986.exe
2368	fb6cbd1986.exe
2368	fb6cbd1986.exe
2368	fb6cbd1986.exe
820	ActiveISO.exe
4288	ActiveISO.exe
4288	ActiveISO.exe
4488	cmd.exe
4488	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4288	ActiveISO.exe
4488	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	fb6cbd1986.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 4824	5084	file.exe	86
PID 5084 wrote to memory of 4824	5084	file.exe	86
PID 5084 wrote to memory of 4824	5084	file.exe	86
PID 4824 wrote to memory of 4892	4824	skotes.exe	95
PID 4824 wrote to memory of 4892	4824	skotes.exe	95
PID 4824 wrote to memory of 4892	4824	skotes.exe	95
PID 4892 wrote to memory of 2672	4892	sxqnmytm.exe	96
PID 4892 wrote to memory of 2672	4892	sxqnmytm.exe	96
PID 4892 wrote to memory of 2672	4892	sxqnmytm.exe	96
PID 4824 wrote to memory of 3460	4824	skotes.exe	97
PID 4824 wrote to memory of 3460	4824	skotes.exe	97
PID 4824 wrote to memory of 3460	4824	skotes.exe	97
PID 4824 wrote to memory of 4144	4824	skotes.exe	104
PID 4824 wrote to memory of 4144	4824	skotes.exe	104
PID 4824 wrote to memory of 4144	4824	skotes.exe	104
PID 4824 wrote to memory of 5064	4824	skotes.exe	105
PID 4824 wrote to memory of 5064	4824	skotes.exe	105
PID 4824 wrote to memory of 5064	4824	skotes.exe	105
PID 4824 wrote to memory of 2368	4824	skotes.exe	106
PID 4824 wrote to memory of 2368	4824	skotes.exe	106
PID 4824 wrote to memory of 2368	4824	skotes.exe	106
PID 2672 wrote to memory of 820	2672	sxqnmytm.exe	108
PID 2672 wrote to memory of 820	2672	sxqnmytm.exe	108
PID 820 wrote to memory of 4288	820	ActiveISO.exe	109
PID 820 wrote to memory of 4288	820	ActiveISO.exe	109
PID 4288 wrote to memory of 4488	4288	ActiveISO.exe	110
PID 4288 wrote to memory of 4488	4288	ActiveISO.exe	110
PID 4288 wrote to memory of 4488	4288	ActiveISO.exe	110
PID 4288 wrote to memory of 4488	4288	ActiveISO.exe	110
PID 4488 wrote to memory of 1120	4488	cmd.exe	113
PID 4488 wrote to memory of 1120	4488	cmd.exe	113
PID 4488 wrote to memory of 1120	4488	cmd.exe	113
PID 4488 wrote to memory of 1120	4488	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- 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 WriteProcessMemory
PID:5084
- C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
  "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
  2⤵
  - 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
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4824
- - C:\Users\Admin\AppData\Local\Temp\1004354001\sxqnmytm.exe
    "C:\Users\Admin\AppData\Local\Temp\1004354001\sxqnmytm.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4892
  - - C:\Windows\Temp\{026AF47E-1ED1-4CF8-A131-DACECB10556C}\.cr\sxqnmytm.exe
      "C:\Windows\Temp\{026AF47E-1ED1-4CF8-A131-DACECB10556C}\.cr\sxqnmytm.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\1004354001\sxqnmytm.exe" -burn.filehandle.attached=548 -burn.filehandle.self=544
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2672
    - - C:\Windows\Temp\{A5601CFE-E912-4477-95B9-CC043C410A4A}\.ba\ActiveISO.exe
        
        "C:\Windows\Temp\{A5601CFE-E912-4477-95B9-CC043C410A4A}\.ba\ActiveISO.exe"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:820
      - C:\Users\Admin\AppData\Roaming\remoteFastzq5\ActiveISO.exe
        
        C:\Users\Admin\AppData\Roaming\remoteFastzq5\ActiveISO.exe
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:4288
        
        C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\SysWOW64\cmd.exe
        7⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:4488
        
        C:\Users\Admin\AppData\Local\Temp\DriverProtectv1.exe
        
        C:\Users\Admin\AppData\Local\Temp\DriverProtectv1.exe
        8⤵
        Loads dropped DLL
        
        PID:1120
- - C:\Users\Admin\AppData\Local\Temp\1004486001\ad6a6f9416.exe
    "C:\Users\Admin\AppData\Local\Temp\1004486001\ad6a6f9416.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:3460
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3460 -s 1500
      4⤵
      Program crash
      PID:3864
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3460 -s 1488
      4⤵
      Program crash
      PID:756
- - C:\Users\Admin\AppData\Local\Temp\1004487001\5ff47f9d38.exe
    "C:\Users\Admin\AppData\Local\Temp\1004487001\5ff47f9d38.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:4144
- - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
    "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
    3⤵
    PID:5064
- - C:\Users\Admin\AppData\Local\Temp\1004489001\fb6cbd1986.exe
    "C:\Users\Admin\AppData\Local\Temp\1004489001\fb6cbd1986.exe"
    3⤵
    - 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:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3460 -ip 3460
1⤵
PID:2436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3460 -ip 3460
1⤵
PID:3004

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