zgrat | f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	clpch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	XRJNZC.exe

Downloads MZ/PE file

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	clpch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	clpch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	XRJNZC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	XRJNZC.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation	NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation	Utsysc.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation	clpch.exe

Executes dropped EXE 6 IoCs

pid	Process
2680	Utsysc.exe
1124	Utsysc.exe
3848	mnr.exe
4192	clpch.exe
692	XRJNZC.exe
3044	Utsysc.exe

Themida packer 23 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x0007000000022d07-86.dat	themida
behavioral2/files/0x0007000000022d07-99.dat	themida
behavioral2/files/0x0007000000022d07-100.dat	themida
behavioral2/memory/4192-101-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/memory/4192-106-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/memory/4192-109-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/memory/4192-114-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/memory/4192-115-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/memory/4192-116-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/memory/4192-117-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/memory/4192-118-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/memory/4192-124-0x0000000000D00000-0x0000000001B66000-memory.dmp	themida
behavioral2/files/0x0007000000022d19-127.dat	themida
behavioral2/files/0x0007000000022d19-128.dat	themida
behavioral2/memory/692-129-0x00000000009E0000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/692-135-0x00000000009E0000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/692-141-0x00000000009E0000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/692-142-0x00000000009E0000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/692-143-0x00000000009E0000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/692-144-0x00000000009E0000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/692-145-0x00000000009E0000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/692-146-0x00000000009E0000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/692-147-0x00000000009E0000-0x0000000001846000-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-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mnr.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000057001\\mnr.exe"	Utsysc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clpch.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000058001\\clpch.exe"	Utsysc.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	clpch.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	XRJNZC.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4192	clpch.exe
692	XRJNZC.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2452	692	WerFault.exe	119

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
4920	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2908	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4816	NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe
4816	NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe
2680	Utsysc.exe
2680	Utsysc.exe
1124	Utsysc.exe
1124	Utsysc.exe
3848	mnr.exe
4192	clpch.exe
4192	clpch.exe
692	XRJNZC.exe
692	XRJNZC.exe
3044	Utsysc.exe
3044	Utsysc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3848	mnr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4816	NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 2680	4816	NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe	99
PID 4816 wrote to memory of 2680	4816	NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe	99
PID 4816 wrote to memory of 2680	4816	NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe	99
PID 2680 wrote to memory of 4920	2680	Utsysc.exe	101
PID 2680 wrote to memory of 4920	2680	Utsysc.exe	101
PID 2680 wrote to memory of 4920	2680	Utsysc.exe	101
PID 2680 wrote to memory of 3848	2680	Utsysc.exe	113
PID 2680 wrote to memory of 3848	2680	Utsysc.exe	113
PID 2680 wrote to memory of 4192	2680	Utsysc.exe	115
PID 2680 wrote to memory of 4192	2680	Utsysc.exe	115
PID 2680 wrote to memory of 4192	2680	Utsysc.exe	115
PID 4192 wrote to memory of 1116	4192	clpch.exe	116
PID 4192 wrote to memory of 1116	4192	clpch.exe	116
PID 4192 wrote to memory of 1116	4192	clpch.exe	116
PID 1116 wrote to memory of 2908	1116	cmd.exe	118
PID 1116 wrote to memory of 2908	1116	cmd.exe	118
PID 1116 wrote to memory of 2908	1116	cmd.exe	118
PID 1116 wrote to memory of 692	1116	cmd.exe	119
PID 1116 wrote to memory of 692	1116	cmd.exe	119
PID 1116 wrote to memory of 692	1116	cmd.exe	119

C:\Users\Admin\AppData\Local\Temp\NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.f50db870d11db91217a014fe2672069c51ae1e6c32547e09c99fef64c0a501fb.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Users\Admin\AppData\Local\Temp\b64c58644b\Utsysc.exe
  "C:\Users\Admin\AppData\Local\Temp\b64c58644b\Utsysc.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2680
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN Utsysc.exe /TR "C:\Users\Admin\AppData\Local\Temp\b64c58644b\Utsysc.exe" /F
    3⤵
    - Creates scheduled task(s)
    PID:4920
- - C:\Users\Admin\AppData\Local\Temp\1000057001\mnr.exe
    "C:\Users\Admin\AppData\Local\Temp\1000057001\mnr.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3848
- - C:\Users\Admin\AppData\Local\Temp\1000058001\clpch.exe
    "C:\Users\Admin\AppData\Local\Temp\1000058001\clpch.exe"
    3⤵
    - 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:4192
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\s38g.0.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1116
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:2908
    - - C:\ProgramData\pinterests\XRJNZC.exe
        
        "C:\ProgramData\pinterests\XRJNZC.exe"
        5⤵
        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
        Suspicious behavior: EnumeratesProcesses
        
        PID:692
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 692 -s 632
        6⤵
        Program crash
        
        PID:2452

C:\Users\Admin\AppData\Local\Temp\b64c58644b\Utsysc.exe
C:\Users\Admin\AppData\Local\Temp\b64c58644b\Utsysc.exe
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 692 -ip 692
1⤵
PID:3988

C:\Users\Admin\AppData\Local\Temp\b64c58644b\Utsysc.exe
C:\Users\Admin\AppData\Local\Temp\b64c58644b\Utsysc.exe
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

System Information Discovery