remcos | 86dadeb6a6e837335c4c735ad8eda03fa66ca318ca50061dec33bb8349fad89a

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	itunes.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	itunes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	itunes.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe

Deletes itself 1 IoCs

pid	Process
3160	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
2384	itunes.exe

Themida packer 29 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/2032-0-0x0000000000FD0000-0x0000000001706000-memory.dmp	themida
behavioral2/memory/2032-4-0x0000000000FD0000-0x0000000001706000-memory.dmp	themida
behavioral2/memory/2032-3-0x0000000000FD0000-0x0000000001706000-memory.dmp	themida
behavioral2/memory/2032-2-0x0000000000FD0000-0x0000000001706000-memory.dmp	themida
behavioral2/memory/2032-6-0x0000000000FD0000-0x0000000001706000-memory.dmp	themida
behavioral2/memory/2032-7-0x0000000000FD0000-0x0000000001706000-memory.dmp	themida
behavioral2/memory/2032-5-0x0000000000FD0000-0x0000000001706000-memory.dmp	themida
behavioral2/memory/2032-13-0x0000000000FD0000-0x0000000001706000-memory.dmp	themida
behavioral2/files/0x0009000000023c82-17.dat	themida
behavioral2/memory/2384-18-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-21-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-23-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-22-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-20-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-19-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-24-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-25-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-26-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-27-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-28-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-29-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-30-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-31-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-32-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-33-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-34-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-35-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-36-0x0000000000030000-0x0000000000766000-memory.dmp	themida
behavioral2/memory/2384-37-0x0000000000030000-0x0000000000766000-memory.dmp	themida

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rms = "\"C:\\Users\\Admin\\AppData\\Roaming\\RMS\\itunes.exe\""	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rms = "\"C:\\Users\\Admin\\AppData\\Roaming\\RMS\\itunes.exe\""	itunes.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	itunes.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2032	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
2384	itunes.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 8 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	itunes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\Local Settings	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe

Modifies registry key 1 TTPs 2 IoCs

Modify Registry

T1112

pid	Process
4348	reg.exe
220	reg.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 4264	2032	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe	82
PID 2032 wrote to memory of 4264	2032	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe	82
PID 2032 wrote to memory of 4264	2032	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe	82
PID 2032 wrote to memory of 3160	2032	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe	83
PID 2032 wrote to memory of 3160	2032	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe	83
PID 2032 wrote to memory of 3160	2032	e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe	83
PID 4264 wrote to memory of 4348	4264	cmd.exe	85
PID 4264 wrote to memory of 4348	4264	cmd.exe	85
PID 4264 wrote to memory of 4348	4264	cmd.exe	85
PID 3160 wrote to memory of 3856	3160	WScript.exe	86
PID 3160 wrote to memory of 3856	3160	WScript.exe	86
PID 3160 wrote to memory of 3856	3160	WScript.exe	86
PID 3856 wrote to memory of 2384	3856	cmd.exe	88
PID 3856 wrote to memory of 2384	3856	cmd.exe	88
PID 3856 wrote to memory of 2384	3856	cmd.exe	88
PID 2384 wrote to memory of 3536	2384	itunes.exe	89
PID 2384 wrote to memory of 3536	2384	itunes.exe	89
PID 2384 wrote to memory of 3536	2384	itunes.exe	89
PID 2384 wrote to memory of 5104	2384	itunes.exe	90
PID 2384 wrote to memory of 5104	2384	itunes.exe	90
PID 2384 wrote to memory of 5104	2384	itunes.exe	90
PID 3536 wrote to memory of 220	3536	cmd.exe	92
PID 3536 wrote to memory of 220	3536	cmd.exe	92
PID 3536 wrote to memory of 220	3536	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
"C:\Users\Admin\AppData\Local\Temp\e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\SysWOW64\cmd.exe
  /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4264
- - C:\Windows\SysWOW64\reg.exe
    C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
    3⤵
    - UAC bypass
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:4348
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
  2⤵
  - Checks computer location settings
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3160
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\RMS\itunes.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3856
  - - C:\Users\Admin\AppData\Roaming\RMS\itunes.exe
      C:\Users\Admin\AppData\Roaming\RMS\itunes.exe
      4⤵
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Checks BIOS information in registry
      Executes dropped EXE
      Adds Run key to start application
      Checks whether UAC is enabled
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2384
    - - C:\Windows\SysWOW64\cmd.exe
        
        /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3536
      - C:\Windows\SysWOW64\reg.exe
        
        C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        6⤵
        UAC bypass
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:220
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\SysWOW64\svchost.exe
        5⤵
        
        PID:5104

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

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion