amadey | edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a

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"	5bb52af409.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	5bb52af409.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	5bb52af409.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	5bb52af409.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	5bb52af409.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	5bb52af409.exe

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 9 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	fd57be5093.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	5bb52af409.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__	8f1a15e03e.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	document.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 18 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\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8f1a15e03e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	fd57be5093.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	5bb52af409.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5bb52af409.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	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	document.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fd57be5093.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\SystemBiosVersion	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	document.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8f1a15e03e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.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	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.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
4432	skotes.exe
1220	skotes.exe
3580	document.exe
908	8f1a15e03e.exe
4520	fd57be5093.exe
3128	5bb52af409.exe
720	skotes.exe
4260	skotes.exe

Identifies Wine through registry keys 2 TTPs 9 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	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	fd57be5093.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	5bb52af409.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	skotes.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	document.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	8f1a15e03e.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	skotes.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"	5bb52af409.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	5bb52af409.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\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	document.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8f1a15e03e.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004757001\\8f1a15e03e.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fd57be5093.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004758001\\fd57be5093.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5bb52af409.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004760001\\5bb52af409.exe"	skotes.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs

pid	Process
1868	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
4432	skotes.exe
1220	skotes.exe
3580	document.exe
908	8f1a15e03e.exe
4520	fd57be5093.exe
3128	5bb52af409.exe
720	skotes.exe
4260	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4368	908	WerFault.exe	96

System Location Discovery: System Language Discovery 1 TTPs 6 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	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	document.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8f1a15e03e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fd57be5093.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5bb52af409.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3580	document.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1868	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
1868	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
4432	skotes.exe
4432	skotes.exe
1220	skotes.exe
1220	skotes.exe
3580	document.exe
3580	document.exe
908	8f1a15e03e.exe
908	8f1a15e03e.exe
3580	document.exe
4520	fd57be5093.exe
4520	fd57be5093.exe
3128	5bb52af409.exe
3128	5bb52af409.exe
3128	5bb52af409.exe
3128	5bb52af409.exe
3128	5bb52af409.exe
720	skotes.exe
720	skotes.exe
4260	skotes.exe
4260	skotes.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3580	document.exe
Token: SeDebugPrivilege	3128	5bb52af409.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1868	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3580	document.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 4432	1868	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe	86
PID 1868 wrote to memory of 4432	1868	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe	86
PID 1868 wrote to memory of 4432	1868	edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe	86
PID 4432 wrote to memory of 3580	4432	skotes.exe	92
PID 4432 wrote to memory of 3580	4432	skotes.exe	92
PID 4432 wrote to memory of 3580	4432	skotes.exe	92
PID 4432 wrote to memory of 908	4432	skotes.exe	96
PID 4432 wrote to memory of 908	4432	skotes.exe	96
PID 4432 wrote to memory of 908	4432	skotes.exe	96
PID 4432 wrote to memory of 4520	4432	skotes.exe	100
PID 4432 wrote to memory of 4520	4432	skotes.exe	100
PID 4432 wrote to memory of 4520	4432	skotes.exe	100
PID 4432 wrote to memory of 1664	4432	skotes.exe	101
PID 4432 wrote to memory of 1664	4432	skotes.exe	101
PID 4432 wrote to memory of 1664	4432	skotes.exe	101
PID 4432 wrote to memory of 3128	4432	skotes.exe	102
PID 4432 wrote to memory of 3128	4432	skotes.exe	102
PID 4432 wrote to memory of 3128	4432	skotes.exe	102

C:\Users\Admin\AppData\Local\Temp\edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.exe
"C:\Users\Admin\AppData\Local\Temp\edc41ee27d1580b4f0b0d94633c81320cbbc55a00f304cd2956673bdaf36f79a.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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1868
- 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:4432
- - C:\Users\Admin\AppData\Local\Temp\1004732001\document.exe
    "C:\Users\Admin\AppData\Local\Temp\1004732001\document.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - 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: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3580
- - C:\Users\Admin\AppData\Local\Temp\1004757001\8f1a15e03e.exe
    "C:\Users\Admin\AppData\Local\Temp\1004757001\8f1a15e03e.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:908
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 908 -s 1484
      4⤵
      Program crash
      PID:4368
- - C:\Users\Admin\AppData\Local\Temp\1004758001\fd57be5093.exe
    "C:\Users\Admin\AppData\Local\Temp\1004758001\fd57be5093.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:4520
- - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
    "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
    3⤵
    PID:1664
- - C:\Users\Admin\AppData\Local\Temp\1004760001\5bb52af409.exe
    "C:\Users\Admin\AppData\Local\Temp\1004760001\5bb52af409.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:3128

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:1220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 908 -ip 908
1⤵
PID:3288

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:720

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:4260

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