amadey | 191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1p76f5.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2c8776.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	kelyBT9.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 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\SystemBiosVersion	2c8776.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2c8776.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	kelyBT9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1p76f5.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\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1p76f5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	kelyBT9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	1p76f5.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	skotes.exe

Executes dropped EXE 6 IoCs

pid	Process
516	1p76f5.exe
2532	skotes.exe
3856	2c8776.exe
3600	kelyBT9.exe
4004	skotes.exe
4680	skotes.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	1p76f5.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	2c8776.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	kelyBT9.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	skotes.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\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\\\""	191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
516	1p76f5.exe
2532	skotes.exe
3856	2c8776.exe
3600	kelyBT9.exe
4004	skotes.exe
4680	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	1p76f5.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
404	3856	WerFault.exe	86
3480	3856	WerFault.exe	86

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	kelyBT9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1p76f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2c8776.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
64	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
516	1p76f5.exe
516	1p76f5.exe
2532	skotes.exe
2532	skotes.exe
3856	2c8776.exe
3856	2c8776.exe
3600	kelyBT9.exe
3600	kelyBT9.exe
4004	skotes.exe
4004	skotes.exe
4680	skotes.exe
4680	skotes.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3600	kelyBT9.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
516	1p76f5.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 228 wrote to memory of 516	228	191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe	84
PID 228 wrote to memory of 516	228	191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe	84
PID 228 wrote to memory of 516	228	191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe	84
PID 516 wrote to memory of 2532	516	1p76f5.exe	85
PID 516 wrote to memory of 2532	516	1p76f5.exe	85
PID 516 wrote to memory of 2532	516	1p76f5.exe	85
PID 228 wrote to memory of 3856	228	191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe	86
PID 228 wrote to memory of 3856	228	191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe	86
PID 228 wrote to memory of 3856	228	191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe	86
PID 2532 wrote to memory of 3600	2532	skotes.exe	96
PID 2532 wrote to memory of 3600	2532	skotes.exe	96
PID 2532 wrote to memory of 3600	2532	skotes.exe	96
PID 3600 wrote to memory of 64	3600	kelyBT9.exe	97
PID 3600 wrote to memory of 64	3600	kelyBT9.exe	97
PID 3600 wrote to memory of 64	3600	kelyBT9.exe	97

C:\Users\Admin\AppData\Local\Temp\191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe
"C:\Users\Admin\AppData\Local\Temp\191d113401af31884b55a8db94126e59338e2e10d0b212b6fd0a2d7f55d1656a.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:228
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1p76f5.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1p76f5.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
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:516
- - 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
    - 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:2532
  - - C:\Users\Admin\AppData\Local\Temp\1013267001\kelyBT9.exe
      "C:\Users\Admin\AppData\Local\Temp\1013267001\kelyBT9.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
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3600
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks" /create /tn "SecurityHealthSystray.exe" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\SecurityHealthSystray.exe" /rl HIGHEST /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:64
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2c8776.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2c8776.exe
  2⤵
  - 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:3856
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3856 -s 1608
    3⤵
    - Program crash
    PID:404
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3856 -s 1556
    3⤵
    - Program crash
    PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3856 -ip 3856
1⤵
PID:2336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3856 -ip 3856
1⤵
PID:3320

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:4004

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:4680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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