amadey | b1e38751f9e4f0e1e26a047e622f7c0031b034becfdbf7d57fbb71d5653e0707

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	b19863bb34.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	b19863bb34.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	b19863bb34.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	b19863bb34.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	b19863bb34.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	b19863bb34.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 9 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__	e3c6cca4f2.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	735a98f193.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__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b19863bb34.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.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	b19863bb34.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b19863bb34.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.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\SystemBiosVersion	735a98f193.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\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	e3c6cca4f2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e3c6cca4f2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	735a98f193.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	file.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	skotes.exe

Executes dropped EXE 8 IoCs

pid	Process
3092	skotes.exe
1104	e3c6cca4f2.exe
2972	735a98f193.exe
4628	skotes.exe
3032	skotes.exe
4972	b19863bb34.exe
3952	skotes.exe
1388	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-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	e3c6cca4f2.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	b19863bb34.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	735a98f193.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	b19863bb34.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	b19863bb34.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e3c6cca4f2.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004638001\\e3c6cca4f2.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\735a98f193.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004639001\\735a98f193.exe"	skotes.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b19863bb34.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1004641001\\b19863bb34.exe"	skotes.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs

pid	Process
456	file.exe
3092	skotes.exe
1104	e3c6cca4f2.exe
2972	735a98f193.exe
4628	skotes.exe
3032	skotes.exe
4972	b19863bb34.exe
3952	skotes.exe
1388	skotes.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3092 set thread context of 3032	3092	skotes.exe	100

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 1 IoCs

pid	pid_target	Process	procid_target
3588	1104	WerFault.exe	92

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	735a98f193.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b19863bb34.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	e3c6cca4f2.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
456	file.exe
456	file.exe
3092	skotes.exe
3092	skotes.exe
1104	e3c6cca4f2.exe
1104	e3c6cca4f2.exe
2972	735a98f193.exe
2972	735a98f193.exe
4628	skotes.exe
4628	skotes.exe
3032	skotes.exe
3032	skotes.exe
4972	b19863bb34.exe
4972	b19863bb34.exe
4972	b19863bb34.exe
4972	b19863bb34.exe
3952	skotes.exe
3952	skotes.exe
1388	skotes.exe
1388	skotes.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4972	b19863bb34.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
456	file.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 456 wrote to memory of 3092	456	file.exe	86
PID 456 wrote to memory of 3092	456	file.exe	86
PID 456 wrote to memory of 3092	456	file.exe	86
PID 3092 wrote to memory of 1104	3092	skotes.exe	92
PID 3092 wrote to memory of 1104	3092	skotes.exe	92
PID 3092 wrote to memory of 1104	3092	skotes.exe	92
PID 3092 wrote to memory of 2972	3092	skotes.exe	98
PID 3092 wrote to memory of 2972	3092	skotes.exe	98
PID 3092 wrote to memory of 2972	3092	skotes.exe	98
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 3032	3092	skotes.exe	100
PID 3092 wrote to memory of 4972	3092	skotes.exe	102
PID 3092 wrote to memory of 4972	3092	skotes.exe	102
PID 3092 wrote to memory of 4972	3092	skotes.exe	102

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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:456
- 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
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Users\Admin\AppData\Local\Temp\1004638001\e3c6cca4f2.exe
    "C:\Users\Admin\AppData\Local\Temp\1004638001\e3c6cca4f2.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:1104
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 1448
      4⤵
      Program crash
      PID:3588
- - C:\Users\Admin\AppData\Local\Temp\1004639001\735a98f193.exe
    "C:\Users\Admin\AppData\Local\Temp\1004639001\735a98f193.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:2972
- - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
    "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.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:3032
- - C:\Users\Admin\AppData\Local\Temp\1004641001\b19863bb34.exe
    "C:\Users\Admin\AppData\Local\Temp\1004641001\b19863bb34.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:4972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1104 -ip 1104
1⤵
PID:812

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:4628

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:3952

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:1388

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