amadey | 766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa

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"	de3cf2c1a0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	de3cf2c1a0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	de3cf2c1a0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	de3cf2c1a0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	de3cf2c1a0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	de3cf2c1a0.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 6 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	document.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	5a65b479f1.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	5a311e484a.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	de3cf2c1a0.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 12 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\VideoBiosVersion	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	5a65b479f1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	5a311e484a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	de3cf2c1a0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5a311e484a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	de3cf2c1a0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	document.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	document.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5a65b479f1.exe

Executes dropped EXE 5 IoCs

pid	Process
2704	skotes.exe
2752	document.exe
2956	5a65b479f1.exe
2412	5a311e484a.exe
480	de3cf2c1a0.exe

Identifies Wine through registry keys 2 TTPs 6 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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	document.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	5a65b479f1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	5a311e484a.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	de3cf2c1a0.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe

Loads dropped DLL 8 IoCs

pid	Process
1920	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe
2704	skotes.exe
2704	skotes.exe
2704	skotes.exe
2704	skotes.exe
2704	skotes.exe
2704	skotes.exe
2704	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"	de3cf2c1a0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	de3cf2c1a0.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	document.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\5a65b479f1.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004745001\\5a65b479f1.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\5a311e484a.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004746001\\5a311e484a.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\de3cf2c1a0.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004748001\\de3cf2c1a0.exe"	skotes.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
1920	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe
2704	skotes.exe
2752	document.exe
2956	5a65b479f1.exe
2412	5a311e484a.exe
480	de3cf2c1a0.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe

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

System Information Discovery
T1082

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	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.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	5a65b479f1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5a311e484a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	de3cf2c1a0.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2752	document.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1920	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe
2704	skotes.exe
2752	document.exe
2956	5a65b479f1.exe
2752	document.exe
2412	5a311e484a.exe
480	de3cf2c1a0.exe
480	de3cf2c1a0.exe
480	de3cf2c1a0.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2752	document.exe
Token: SeDebugPrivilege	480	de3cf2c1a0.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1920	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2752	document.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 2704	1920	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe	31
PID 1920 wrote to memory of 2704	1920	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe	31
PID 1920 wrote to memory of 2704	1920	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe	31
PID 1920 wrote to memory of 2704	1920	766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe	31
PID 2704 wrote to memory of 2752	2704	skotes.exe	33
PID 2704 wrote to memory of 2752	2704	skotes.exe	33
PID 2704 wrote to memory of 2752	2704	skotes.exe	33
PID 2704 wrote to memory of 2752	2704	skotes.exe	33
PID 2704 wrote to memory of 2956	2704	skotes.exe	34
PID 2704 wrote to memory of 2956	2704	skotes.exe	34
PID 2704 wrote to memory of 2956	2704	skotes.exe	34
PID 2704 wrote to memory of 2956	2704	skotes.exe	34
PID 2704 wrote to memory of 2412	2704	skotes.exe	36
PID 2704 wrote to memory of 2412	2704	skotes.exe	36
PID 2704 wrote to memory of 2412	2704	skotes.exe	36
PID 2704 wrote to memory of 2412	2704	skotes.exe	36
PID 2704 wrote to memory of 2680	2704	skotes.exe	37
PID 2704 wrote to memory of 2680	2704	skotes.exe	37
PID 2704 wrote to memory of 2680	2704	skotes.exe	37
PID 2704 wrote to memory of 2680	2704	skotes.exe	37
PID 2704 wrote to memory of 480	2704	skotes.exe	38
PID 2704 wrote to memory of 480	2704	skotes.exe	38
PID 2704 wrote to memory of 480	2704	skotes.exe	38
PID 2704 wrote to memory of 480	2704	skotes.exe	38

C:\Users\Admin\AppData\Local\Temp\766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe
"C:\Users\Admin\AppData\Local\Temp\766282cfd30bca193b9e0863f0a994fefb694eb65fd3762461c07c299a5722fa.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- 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:1920
- 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
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2704
- - 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:2752
- - C:\Users\Admin\AppData\Local\Temp\1004745001\5a65b479f1.exe
    "C:\Users\Admin\AppData\Local\Temp\1004745001\5a65b479f1.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:2956
- - C:\Users\Admin\AppData\Local\Temp\1004746001\5a311e484a.exe
    "C:\Users\Admin\AppData\Local\Temp\1004746001\5a311e484a.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:2412
- - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
    "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
    3⤵
    PID:2680
- - C:\Users\Admin\AppData\Local\Temp\1004748001\de3cf2c1a0.exe
    "C:\Users\Admin\AppData\Local\Temp\1004748001\de3cf2c1a0.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:480

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