amadey | faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10b

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\DisableOnAccessProtection = "1"	b1e6e3774f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	4V003L.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	4V003L.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	b1e6e3774f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	b1e6e3774f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	4V003L.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	4V003L.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	4V003L.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	b1e6e3774f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	b1e6e3774f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	b1e6e3774f.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 8 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b1e6e3774f.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3j94w.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4V003L.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__	1o77l1.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2G6942.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 16 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	3j94w.exe
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\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2G6942.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b1e6e3774f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4V003L.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1o77l1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b1e6e3774f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4V003L.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1o77l1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3j94w.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2G6942.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	1o77l1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	skotes.exe

Executes dropped EXE 10 IoCs

pid	Process
3576	C5E79.exe
2848	w4Z01.exe
4156	1o77l1.exe
4464	skotes.exe
1416	2G6942.exe
3464	b1e6e3774f.exe
1836	3j94w.exe
1520	4V003L.exe
4132	skotes.exe
3616	skotes.exe

Identifies Wine through registry keys 2 TTPs 8 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-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	2G6942.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	b1e6e3774f.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	3j94w.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	4V003L.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	1o77l1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	skotes.exe

Windows security modification 2 TTPs 3 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	b1e6e3774f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	b1e6e3774f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	4V003L.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1e6e3774f.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1013091001\\b1e6e3774f.exe"	skotes.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	C5E79.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	w4Z01.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

pid	Process
4156	1o77l1.exe
4464	skotes.exe
1416	2G6942.exe
3464	b1e6e3774f.exe
1836	3j94w.exe
1520	4V003L.exe
4132	skotes.exe
3616	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	1o77l1.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
2696	1416	WerFault.exe	87
4584	1416	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 9 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	w4Z01.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1o77l1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2G6942.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4V003L.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	C5E79.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b1e6e3774f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3j94w.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4156	1o77l1.exe
4156	1o77l1.exe
4464	skotes.exe
4464	skotes.exe
1416	2G6942.exe
1416	2G6942.exe
3464	b1e6e3774f.exe
3464	b1e6e3774f.exe
3464	b1e6e3774f.exe
3464	b1e6e3774f.exe
1836	3j94w.exe
1836	3j94w.exe
1520	4V003L.exe
1520	4V003L.exe
1520	4V003L.exe
1520	4V003L.exe
4132	skotes.exe
4132	skotes.exe
3616	skotes.exe
3616	skotes.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3464	b1e6e3774f.exe
Token: SeDebugPrivilege	1520	4V003L.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4156	1o77l1.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 3576	4628	faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe	83
PID 4628 wrote to memory of 3576	4628	faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe	83
PID 4628 wrote to memory of 3576	4628	faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe	83
PID 3576 wrote to memory of 2848	3576	C5E79.exe	84
PID 3576 wrote to memory of 2848	3576	C5E79.exe	84
PID 3576 wrote to memory of 2848	3576	C5E79.exe	84
PID 2848 wrote to memory of 4156	2848	w4Z01.exe	85
PID 2848 wrote to memory of 4156	2848	w4Z01.exe	85
PID 2848 wrote to memory of 4156	2848	w4Z01.exe	85
PID 4156 wrote to memory of 4464	4156	1o77l1.exe	86
PID 4156 wrote to memory of 4464	4156	1o77l1.exe	86
PID 4156 wrote to memory of 4464	4156	1o77l1.exe	86
PID 2848 wrote to memory of 1416	2848	w4Z01.exe	87
PID 2848 wrote to memory of 1416	2848	w4Z01.exe	87
PID 2848 wrote to memory of 1416	2848	w4Z01.exe	87
PID 4464 wrote to memory of 3464	4464	skotes.exe	89
PID 4464 wrote to memory of 3464	4464	skotes.exe	89
PID 4464 wrote to memory of 3464	4464	skotes.exe	89
PID 3576 wrote to memory of 1836	3576	C5E79.exe	103
PID 3576 wrote to memory of 1836	3576	C5E79.exe	103
PID 3576 wrote to memory of 1836	3576	C5E79.exe	103
PID 4628 wrote to memory of 1520	4628	faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe	106
PID 4628 wrote to memory of 1520	4628	faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe	106
PID 4628 wrote to memory of 1520	4628	faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe	106

C:\Users\Admin\AppData\Local\Temp\faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe
"C:\Users\Admin\AppData\Local\Temp\faa681151e56b327f655cafc8502c9ee6d75b75e4735fdda8a1be3445ad5a10bN.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\C5E79.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\C5E79.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3576
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\w4Z01.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\w4Z01.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1o77l1.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1o77l1.exe
      4⤵
      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
      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:4156
    - - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
        
        "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
        5⤵
        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:4464
      - C:\Users\Admin\AppData\Local\Temp\1013091001\b1e6e3774f.exe
        
        "C:\Users\Admin\AppData\Local\Temp\1013091001\b1e6e3774f.exe"
        6⤵
        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:3464
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2G6942.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2G6942.exe
      4⤵
      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:1416
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1416 -s 1612
        5⤵
        Program crash
        
        PID:2696
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1416 -s 1604
        5⤵
        Program crash
        
        PID:4584
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3j94w.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3j94w.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:1836
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4V003L.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4V003L.exe
  2⤵
  - 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:1520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1416 -ip 1416
1⤵
PID:1384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1416 -ip 1416
1⤵
PID:3104

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:4132

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:3616

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