amadey | b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	3f92e8139e.exe

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__	7a0580e989.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3f92e8139e.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4156	powershell.exe
3556	powershell.exe
4164	powershell.exe
1996	powershell.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\SystemBiosVersion	7a0580e989.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7a0580e989.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3f92e8139e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3f92e8139e.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	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	skotes.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	vQeyqr1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	vQeyqr1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	vQeyqr1.exe

Executes dropped EXE 11 IoCs

pid	Process
2364	skotes.exe
856	skotes.exe
2980	vQeyqr1.exe
2444	7a0580e989.exe
1988	6eee4e0161.exe
4696	6eee4e0161.exe
4408	6eee4e0161.exe
3688	6eee4e0161.exe
3936	3f92e8139e.exe
3868	132eccac96.exe
3944	545593d666.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-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	7a0580e989.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	3f92e8139e.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	vQeyqr1.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
81	pastebin.com
83	pastebin.com

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
17	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
4656	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
2364	skotes.exe
856	skotes.exe
2444	7a0580e989.exe
3936	3f92e8139e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1988 set thread context of 3688	1988	6eee4e0161.exe	109

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.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 7 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	545593d666.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7a0580e989.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6eee4e0161.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6eee4e0161.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3f92e8139e.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
1840	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2980	vQeyqr1.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4656	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
4656	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
2364	skotes.exe
2364	skotes.exe
856	skotes.exe
856	skotes.exe
1996	powershell.exe
1996	powershell.exe
4156	powershell.exe
4156	powershell.exe
3556	powershell.exe
2444	7a0580e989.exe
2444	7a0580e989.exe
3556	powershell.exe
4164	powershell.exe
4164	powershell.exe
2980	vQeyqr1.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3936	3f92e8139e.exe
3868	132eccac96.exe
3868	132eccac96.exe
2980	vQeyqr1.exe
2980	vQeyqr1.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2980	vQeyqr1.exe
Token: SeDebugPrivilege	1996	powershell.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	3556	powershell.exe
Token: SeDebugPrivilege	4164	powershell.exe
Token: SeDebugPrivilege	2980	vQeyqr1.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4656	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2980	vQeyqr1.exe
2980	vQeyqr1.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 2364	4656	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe	83
PID 4656 wrote to memory of 2364	4656	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe	83
PID 4656 wrote to memory of 2364	4656	b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe	83
PID 2364 wrote to memory of 2980	2364	skotes.exe	85
PID 2364 wrote to memory of 2980	2364	skotes.exe	85
PID 2980 wrote to memory of 1996	2980	vQeyqr1.exe	89
PID 2980 wrote to memory of 1996	2980	vQeyqr1.exe	89
PID 2980 wrote to memory of 4156	2980	vQeyqr1.exe	91
PID 2980 wrote to memory of 4156	2980	vQeyqr1.exe	91
PID 2364 wrote to memory of 2444	2364	skotes.exe	93
PID 2364 wrote to memory of 2444	2364	skotes.exe	93
PID 2364 wrote to memory of 2444	2364	skotes.exe	93
PID 2980 wrote to memory of 3556	2980	vQeyqr1.exe	94
PID 2980 wrote to memory of 3556	2980	vQeyqr1.exe	94
PID 2980 wrote to memory of 4164	2980	vQeyqr1.exe	97
PID 2980 wrote to memory of 4164	2980	vQeyqr1.exe	97
PID 2980 wrote to memory of 1840	2980	vQeyqr1.exe	99
PID 2980 wrote to memory of 1840	2980	vQeyqr1.exe	99
PID 2364 wrote to memory of 1988	2364	skotes.exe	103
PID 2364 wrote to memory of 1988	2364	skotes.exe	103
PID 2364 wrote to memory of 1988	2364	skotes.exe	103
PID 1988 wrote to memory of 4696	1988	6eee4e0161.exe	107
PID 1988 wrote to memory of 4696	1988	6eee4e0161.exe	107
PID 1988 wrote to memory of 4696	1988	6eee4e0161.exe	107
PID 1988 wrote to memory of 4408	1988	6eee4e0161.exe	108
PID 1988 wrote to memory of 4408	1988	6eee4e0161.exe	108
PID 1988 wrote to memory of 4408	1988	6eee4e0161.exe	108
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 1988 wrote to memory of 3688	1988	6eee4e0161.exe	109
PID 2364 wrote to memory of 3936	2364	skotes.exe	113
PID 2364 wrote to memory of 3936	2364	skotes.exe	113
PID 2364 wrote to memory of 3936	2364	skotes.exe	113
PID 2364 wrote to memory of 3868	2364	skotes.exe	118
PID 2364 wrote to memory of 3868	2364	skotes.exe	118
PID 2364 wrote to memory of 3868	2364	skotes.exe	118
PID 2364 wrote to memory of 3944	2364	skotes.exe	121
PID 2364 wrote to memory of 3944	2364	skotes.exe	121
PID 2364 wrote to memory of 3944	2364	skotes.exe	121

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.exe
"C:\Users\Admin\AppData\Local\Temp\b23adb76c30005dc9d5391fd1f1218b36b6b0cb85b63f5cb9aeeb0cb01d77963.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:4656
- 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
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Users\Admin\AppData\Local\Temp\1018897001\vQeyqr1.exe
    "C:\Users\Admin\AppData\Local\Temp\1018897001\vQeyqr1.exe"
    3⤵
    - Checks computer location settings
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2980
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\1018897001\vQeyqr1.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1996
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'vQeyqr1.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4156
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3556
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4164
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:1840
- - C:\Users\Admin\AppData\Local\Temp\1019050001\7a0580e989.exe
    "C:\Users\Admin\AppData\Local\Temp\1019050001\7a0580e989.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:2444
- - C:\Users\Admin\AppData\Local\Temp\1019051001\6eee4e0161.exe
    "C:\Users\Admin\AppData\Local\Temp\1019051001\6eee4e0161.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1988
  - - C:\Users\Admin\AppData\Local\Temp\1019051001\6eee4e0161.exe
      "C:\Users\Admin\AppData\Local\Temp\1019051001\6eee4e0161.exe"
      4⤵
      Executes dropped EXE
      PID:4696
  - - C:\Users\Admin\AppData\Local\Temp\1019051001\6eee4e0161.exe
      "C:\Users\Admin\AppData\Local\Temp\1019051001\6eee4e0161.exe"
      4⤵
      Executes dropped EXE
      PID:4408
  - - C:\Users\Admin\AppData\Local\Temp\1019051001\6eee4e0161.exe
      "C:\Users\Admin\AppData\Local\Temp\1019051001\6eee4e0161.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:3688
- - C:\Users\Admin\AppData\Local\Temp\1019052001\3f92e8139e.exe
    "C:\Users\Admin\AppData\Local\Temp\1019052001\3f92e8139e.exe"
    3⤵
    - Enumerates VirtualBox registry keys
    - 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:3936
- - C:\Users\Admin\AppData\Local\Temp\1019053001\132eccac96.exe
    "C:\Users\Admin\AppData\Local\Temp\1019053001\132eccac96.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:3868
- - C:\Users\Admin\AppData\Local\Temp\1019054001\545593d666.exe
    "C:\Users\Admin\AppData\Local\Temp\1019054001\545593d666.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3944

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:856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion