amadey | 97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	4f8b0c84d3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	4f8b0c84d3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	4f8b0c84d3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	4f8b0c84d3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	4f8b0c84d3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	4f8b0c84d3.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__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a2b2d7a1d6.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	aa246dbffc.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4f8b0c84d3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.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\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a2b2d7a1d6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4f8b0c84d3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4f8b0c84d3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a2b2d7a1d6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	aa246dbffc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	aa246dbffc.exe

Executes dropped EXE 4 IoCs

pid	Process
1884	skotes.exe
324	a2b2d7a1d6.exe
2828	aa246dbffc.exe
904	4f8b0c84d3.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	a2b2d7a1d6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	aa246dbffc.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	4f8b0c84d3.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	skotes.exe

Loads dropped DLL 7 IoCs

pid	Process
2816	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe
1884	skotes.exe
1884	skotes.exe
1884	skotes.exe
1884	skotes.exe
1884	skotes.exe
1884	skotes.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	4f8b0c84d3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	4f8b0c84d3.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\a2b2d7a1d6.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004749001\\a2b2d7a1d6.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\aa246dbffc.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004750001\\aa246dbffc.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\4f8b0c84d3.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004752001\\4f8b0c84d3.exe"	skotes.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
2816	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe
1884	skotes.exe
324	a2b2d7a1d6.exe
2828	aa246dbffc.exe
904	4f8b0c84d3.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.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 5 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	a2b2d7a1d6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aa246dbffc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f8b0c84d3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2816	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe
1884	skotes.exe
324	a2b2d7a1d6.exe
2828	aa246dbffc.exe
904	4f8b0c84d3.exe
904	4f8b0c84d3.exe
904	4f8b0c84d3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	904	4f8b0c84d3.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2816	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 1884	2816	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe	31
PID 2816 wrote to memory of 1884	2816	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe	31
PID 2816 wrote to memory of 1884	2816	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe	31
PID 2816 wrote to memory of 1884	2816	97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe	31
PID 1884 wrote to memory of 324	1884	skotes.exe	33
PID 1884 wrote to memory of 324	1884	skotes.exe	33
PID 1884 wrote to memory of 324	1884	skotes.exe	33
PID 1884 wrote to memory of 324	1884	skotes.exe	33
PID 1884 wrote to memory of 2828	1884	skotes.exe	35
PID 1884 wrote to memory of 2828	1884	skotes.exe	35
PID 1884 wrote to memory of 2828	1884	skotes.exe	35
PID 1884 wrote to memory of 2828	1884	skotes.exe	35
PID 1884 wrote to memory of 2332	1884	skotes.exe	36
PID 1884 wrote to memory of 2332	1884	skotes.exe	36
PID 1884 wrote to memory of 2332	1884	skotes.exe	36
PID 1884 wrote to memory of 2332	1884	skotes.exe	36
PID 1884 wrote to memory of 904	1884	skotes.exe	37
PID 1884 wrote to memory of 904	1884	skotes.exe	37
PID 1884 wrote to memory of 904	1884	skotes.exe	37
PID 1884 wrote to memory of 904	1884	skotes.exe	37

C:\Users\Admin\AppData\Local\Temp\97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.exe
"C:\Users\Admin\AppData\Local\Temp\97c84e4a64dc3963b1449a554864034af641fcb3fd781e668bed8a4290499fd2.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:2816
- 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:1884
- - C:\Users\Admin\AppData\Local\Temp\1004749001\a2b2d7a1d6.exe
    "C:\Users\Admin\AppData\Local\Temp\1004749001\a2b2d7a1d6.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:324
- - C:\Users\Admin\AppData\Local\Temp\1004750001\aa246dbffc.exe
    "C:\Users\Admin\AppData\Local\Temp\1004750001\aa246dbffc.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:2828
- - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
    "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
    3⤵
    PID:2332
- - C:\Users\Admin\AppData\Local\Temp\1004752001\4f8b0c84d3.exe
    "C:\Users\Admin\AppData\Local\Temp\1004752001\4f8b0c84d3.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:904

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