amadey | bfe406b543ca148c2ef6424a32682fbd540810078d52c6f0af8f0edb5951cd67

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	taskhostclp.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	tmp.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oneetx.exe

Downloads MZ/PE file

.NET Reactor proctector 4 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral2/files/0x000600000002321d-178.dat	net_reactor
behavioral2/files/0x000600000002321d-192.dat	net_reactor
behavioral2/files/0x000600000002321d-193.dat	net_reactor
behavioral2/memory/2080-195-0x0000000000480000-0x00000000007F0000-memory.dmp	net_reactor

Checks BIOS information in registry 2 TTPs 6 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	taskhostclp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	taskhostclp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	oneetx.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	oneetx.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-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation	tmp.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation	oneetx.exe

Executes dropped EXE 4 IoCs

pid	Process
3268	oneetx.exe
2080	taskmask.exe
1232	taskhostclp.exe
4888	rdpcllp.exe

Themida packer 20 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/388-133-0x0000000000C10000-0x0000000001306000-memory.dmp	themida
behavioral2/memory/388-138-0x0000000000C10000-0x0000000001306000-memory.dmp	themida
behavioral2/memory/388-139-0x0000000000C10000-0x0000000001306000-memory.dmp	themida
behavioral2/memory/388-140-0x0000000000C10000-0x0000000001306000-memory.dmp	themida
behavioral2/memory/388-141-0x0000000000C10000-0x0000000001306000-memory.dmp	themida
behavioral2/files/0x00080000000231f6-146.dat	themida
behavioral2/files/0x00080000000231f6-150.dat	themida
behavioral2/memory/388-151-0x0000000000C10000-0x0000000001306000-memory.dmp	themida
behavioral2/memory/3268-152-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/memory/3268-156-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/memory/3268-157-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/memory/3268-158-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/memory/3268-159-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/files/0x00080000000231f6-160.dat	themida
behavioral2/memory/3268-173-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/memory/3268-194-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/memory/3268-234-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/files/0x00080000000231f6-305.dat	themida
behavioral2/memory/4732-309-0x0000000000920000-0x0000000001016000-memory.dmp	themida
behavioral2/memory/3268-310-0x0000000000920000-0x0000000001016000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	tmp.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oneetx.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	taskhostclp.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
388	tmp.exe
3268	oneetx.exe
1232	taskhostclp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2080 set thread context of 640	2080	taskmask.exe	108

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

pid	Process
4332	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
388	tmp.exe
388	tmp.exe
3268	oneetx.exe
3268	oneetx.exe
4888	rdpcllp.exe
4888	rdpcllp.exe
4888	rdpcllp.exe
4888	rdpcllp.exe
2080	taskmask.exe
2080	taskmask.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	taskmask.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
388	tmp.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 3268	388	tmp.exe	86
PID 388 wrote to memory of 3268	388	tmp.exe	86
PID 388 wrote to memory of 3268	388	tmp.exe	86
PID 3268 wrote to memory of 4332	3268	oneetx.exe	87
PID 3268 wrote to memory of 4332	3268	oneetx.exe	87
PID 3268 wrote to memory of 4332	3268	oneetx.exe	87
PID 3268 wrote to memory of 3396	3268	oneetx.exe	89
PID 3268 wrote to memory of 3396	3268	oneetx.exe	89
PID 3268 wrote to memory of 3396	3268	oneetx.exe	89
PID 3396 wrote to memory of 4032	3396	cmd.exe	91
PID 3396 wrote to memory of 4032	3396	cmd.exe	91
PID 3396 wrote to memory of 4032	3396	cmd.exe	91
PID 3396 wrote to memory of 2540	3396	cmd.exe	92
PID 3396 wrote to memory of 2540	3396	cmd.exe	92
PID 3396 wrote to memory of 2540	3396	cmd.exe	92
PID 3396 wrote to memory of 3560	3396	cmd.exe	93
PID 3396 wrote to memory of 3560	3396	cmd.exe	93
PID 3396 wrote to memory of 3560	3396	cmd.exe	93
PID 3396 wrote to memory of 2656	3396	cmd.exe	96
PID 3396 wrote to memory of 2656	3396	cmd.exe	96
PID 3396 wrote to memory of 2656	3396	cmd.exe	96
PID 3396 wrote to memory of 2216	3396	cmd.exe	97
PID 3396 wrote to memory of 2216	3396	cmd.exe	97
PID 3396 wrote to memory of 2216	3396	cmd.exe	97
PID 3396 wrote to memory of 1248	3396	cmd.exe	98
PID 3396 wrote to memory of 1248	3396	cmd.exe	98
PID 3396 wrote to memory of 1248	3396	cmd.exe	98
PID 3268 wrote to memory of 2080	3268	oneetx.exe	101
PID 3268 wrote to memory of 2080	3268	oneetx.exe	101
PID 3268 wrote to memory of 2080	3268	oneetx.exe	101
PID 3268 wrote to memory of 1232	3268	oneetx.exe	103
PID 3268 wrote to memory of 1232	3268	oneetx.exe	103
PID 3268 wrote to memory of 4888	3268	oneetx.exe	106
PID 3268 wrote to memory of 4888	3268	oneetx.exe	106
PID 2080 wrote to memory of 2440	2080	taskmask.exe	107
PID 2080 wrote to memory of 2440	2080	taskmask.exe	107
PID 2080 wrote to memory of 2440	2080	taskmask.exe	107
PID 2080 wrote to memory of 640	2080	taskmask.exe	108
PID 2080 wrote to memory of 640	2080	taskmask.exe	108
PID 2080 wrote to memory of 640	2080	taskmask.exe	108
PID 2080 wrote to memory of 640	2080	taskmask.exe	108
PID 2080 wrote to memory of 640	2080	taskmask.exe	108
PID 2080 wrote to memory of 640	2080	taskmask.exe	108
PID 2080 wrote to memory of 640	2080	taskmask.exe	108
PID 2080 wrote to memory of 640	2080	taskmask.exe	108

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:388
- C:\Users\Admin\AppData\Local\Temp\eb0f58bce7\oneetx.exe
  "C:\Users\Admin\AppData\Local\Temp\eb0f58bce7\oneetx.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Checks computer location settings
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3268
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN oneetx.exe /TR "C:\Users\Admin\AppData\Local\Temp\eb0f58bce7\oneetx.exe" /F
    3⤵
    - Creates scheduled task(s)
    PID:4332
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "oneetx.exe" /P "Admin:N"&&CACLS "oneetx.exe" /P "Admin:R" /E&&echo Y|CACLS "..\eb0f58bce7" /P "Admin:N"&&CACLS "..\eb0f58bce7" /P "Admin:R" /E&&Exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3396
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo Y"
      4⤵
      PID:4032
  - - C:\Windows\SysWOW64\cacls.exe
      CACLS "oneetx.exe" /P "Admin:N"
      4⤵
      PID:2540
  - - C:\Windows\SysWOW64\cacls.exe
      CACLS "oneetx.exe" /P "Admin:R" /E
      4⤵
      PID:3560
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo Y"
      4⤵
      PID:2656
  - - C:\Windows\SysWOW64\cacls.exe
      CACLS "..\eb0f58bce7" /P "Admin:N"
      4⤵
      PID:2216
  - - C:\Windows\SysWOW64\cacls.exe
      CACLS "..\eb0f58bce7" /P "Admin:R" /E
      4⤵
      PID:1248
- - C:\Users\Admin\AppData\Local\Temp\1000120001\taskmask.exe
    "C:\Users\Admin\AppData\Local\Temp\1000120001\taskmask.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2080
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe"
      4⤵
      PID:2440
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe"
      4⤵
      PID:640
- - C:\Users\Admin\AppData\Local\Temp\1000121001\taskhostclp.exe
    "C:\Users\Admin\AppData\Local\Temp\1000121001\taskhostclp.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:1232
  - - C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
      C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
      4⤵
      PID:4032
- - C:\Users\Admin\AppData\Local\Temp\1000122101\rdpcllp.exe
    "C:\Users\Admin\AppData\Local\Temp\1000122101\rdpcllp.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:4888

C:\Users\Admin\AppData\Local\Temp\eb0f58bce7\oneetx.exe
C:\Users\Admin\AppData\Local\Temp\eb0f58bce7\oneetx.exe
1⤵
PID:4732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

System Information Discovery