0877c9621b5a1af2c0a872b0094d8a511fad4307154c686849230df0849dc19f

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Installer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	O.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	O.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	O.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	O.exe

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Installer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Installer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	O.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	O.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	O.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	O.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	O.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	O.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	O.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	O.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-1-5-21-356073083-3299209671-3108880702-1000\Control Panel\International\Geo\Nation	NEAS.NEAS0877c9621b5a1af2c0a872b0094d8a511fad4307154c686849230df0849dc19fexeexe_JC.exe
Key value queried	\REGISTRY\USER\S-1-5-21-356073083-3299209671-3108880702-1000\Control Panel\International\Geo\Nation	Installer.exe
Key value queried	\REGISTRY\USER\S-1-5-21-356073083-3299209671-3108880702-1000\Control Panel\International\Geo\Nation	O.exe

Executes dropped EXE 10 IoCs

pid	Process
3232	7z.exe
812	7z.exe
1916	7z.exe
3328	7z.exe
1644	7z.exe
2896	Installer.exe
916	O.exe
4880	O.exe
3408	O.exe
4336	O.exe

Loads dropped DLL 5 IoCs

pid	Process
3232	7z.exe
812	7z.exe
1916	7z.exe
3328	7z.exe
1644	7z.exe

Themida packer 41 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x0007000000022e79-46.dat	themida
behavioral2/files/0x0007000000022e79-48.dat	themida
behavioral2/memory/2896-49-0x0000000000490000-0x0000000000B27000-memory.dmp	themida
behavioral2/memory/2896-51-0x0000000000490000-0x0000000000B27000-memory.dmp	themida
behavioral2/memory/2896-52-0x0000000000490000-0x0000000000B27000-memory.dmp	themida
behavioral2/memory/2896-53-0x0000000000490000-0x0000000000B27000-memory.dmp	themida
behavioral2/memory/2896-54-0x0000000000490000-0x0000000000B27000-memory.dmp	themida
behavioral2/memory/2896-55-0x0000000000490000-0x0000000000B27000-memory.dmp	themida
behavioral2/memory/2896-61-0x0000000000490000-0x0000000000B27000-memory.dmp	themida
behavioral2/files/0x0008000000022e75-64.dat	themida
behavioral2/files/0x0008000000022e75-63.dat	themida
behavioral2/files/0x0008000000022e75-65.dat	themida
behavioral2/memory/916-66-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/916-67-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/916-68-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/916-69-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/916-70-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/916-71-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/916-72-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/files/0x0008000000022e75-74.dat	themida
behavioral2/memory/4880-75-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4880-76-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4880-77-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4880-78-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4880-79-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4880-80-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/files/0x0008000000022e75-87.dat	themida
behavioral2/memory/3408-88-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/3408-89-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/3408-90-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/3408-91-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/3408-92-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/3408-93-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/916-99-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/files/0x0008000000022e75-100.dat	themida
behavioral2/memory/4336-101-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4336-102-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4336-103-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4336-104-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4336-105-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida
behavioral2/memory/4336-106-0x0000000000410000-0x0000000000AA7000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

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

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
2896	Installer.exe
916	O.exe
4880	O.exe
3408	O.exe
4336	O.exe

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
3944	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2232	timeout.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeRestorePrivilege	3232	7z.exe
Token: 35	3232	7z.exe
Token: SeSecurityPrivilege	3232	7z.exe
Token: SeSecurityPrivilege	3232	7z.exe
Token: SeRestorePrivilege	812	7z.exe
Token: 35	812	7z.exe
Token: SeSecurityPrivilege	812	7z.exe
Token: SeSecurityPrivilege	812	7z.exe
Token: SeRestorePrivilege	1916	7z.exe
Token: 35	1916	7z.exe
Token: SeSecurityPrivilege	1916	7z.exe
Token: SeSecurityPrivilege	1916	7z.exe
Token: SeRestorePrivilege	3328	7z.exe
Token: 35	3328	7z.exe
Token: SeSecurityPrivilege	3328	7z.exe
Token: SeSecurityPrivilege	3328	7z.exe
Token: SeRestorePrivilege	1644	7z.exe
Token: 35	1644	7z.exe
Token: SeSecurityPrivilege	1644	7z.exe
Token: SeSecurityPrivilege	1644	7z.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 4300	2508	NEAS.NEAS0877c9621b5a1af2c0a872b0094d8a511fad4307154c686849230df0849dc19fexeexe_JC.exe	81
PID 2508 wrote to memory of 4300	2508	NEAS.NEAS0877c9621b5a1af2c0a872b0094d8a511fad4307154c686849230df0849dc19fexeexe_JC.exe	81
PID 4300 wrote to memory of 732	4300	cmd.exe	83
PID 4300 wrote to memory of 732	4300	cmd.exe	83
PID 4300 wrote to memory of 3232	4300	cmd.exe	84
PID 4300 wrote to memory of 3232	4300	cmd.exe	84
PID 4300 wrote to memory of 812	4300	cmd.exe	85
PID 4300 wrote to memory of 812	4300	cmd.exe	85
PID 4300 wrote to memory of 1916	4300	cmd.exe	86
PID 4300 wrote to memory of 1916	4300	cmd.exe	86
PID 4300 wrote to memory of 3328	4300	cmd.exe	90
PID 4300 wrote to memory of 3328	4300	cmd.exe	90
PID 4300 wrote to memory of 1644	4300	cmd.exe	87
PID 4300 wrote to memory of 1644	4300	cmd.exe	87
PID 4300 wrote to memory of 1592	4300	cmd.exe	89
PID 4300 wrote to memory of 1592	4300	cmd.exe	89
PID 4300 wrote to memory of 2896	4300	cmd.exe	88
PID 4300 wrote to memory of 2896	4300	cmd.exe	88
PID 4300 wrote to memory of 2896	4300	cmd.exe	88
PID 2896 wrote to memory of 4568	2896	Installer.exe	91
PID 2896 wrote to memory of 4568	2896	Installer.exe	91
PID 2896 wrote to memory of 4568	2896	Installer.exe	91
PID 4568 wrote to memory of 2232	4568	cmd.exe	93
PID 4568 wrote to memory of 2232	4568	cmd.exe	93
PID 4568 wrote to memory of 2232	4568	cmd.exe	93
PID 4568 wrote to memory of 916	4568	cmd.exe	94
PID 4568 wrote to memory of 916	4568	cmd.exe	94
PID 4568 wrote to memory of 916	4568	cmd.exe	94
PID 916 wrote to memory of 3944	916	O.exe	95
PID 916 wrote to memory of 3944	916	O.exe	95
PID 916 wrote to memory of 3944	916	O.exe	95

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1592	attrib.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.NEAS0877c9621b5a1af2c0a872b0094d8a511fad4307154c686849230df0849dc19fexeexe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.NEAS0877c9621b5a1af2c0a872b0094d8a511fad4307154c686849230df0849dc19fexeexe_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\main\main.bat" /S"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4300
- - C:\Windows\system32\mode.com
    mode 65,10
    3⤵
    PID:732
- - C:\Users\Admin\AppData\Local\Temp\main\7z.exe
    7z.exe e file.zip -p28619451406619578751616817 -oextracted
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    PID:3232
- - C:\Users\Admin\AppData\Local\Temp\main\7z.exe
    7z.exe e extracted/file_4.zip -oextracted
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    PID:812
- - C:\Users\Admin\AppData\Local\Temp\main\7z.exe
    7z.exe e extracted/file_3.zip -oextracted
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    PID:1916
- - C:\Users\Admin\AppData\Local\Temp\main\7z.exe
    7z.exe e extracted/file_1.zip -oextracted
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    PID:1644
- - C:\Users\Admin\AppData\Local\Temp\main\Installer.exe
    "Installer.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 use of WriteProcessMemory
    PID:2896
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\s28g.0.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4568
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:2232
    - - C:\ProgramData\Roaming\O.exe
        
        "C:\ProgramData\Roaming\O.exe"
        5⤵
        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 use of WriteProcessMemory
        
        PID:916
      - C:\Windows\SysWOW64\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /RL HIGHEST /tn "O" /tr C:\ProgramData\Roaming\O.exe /f
        6⤵
        Creates scheduled task(s)
        
        PID:3944
- - C:\Windows\system32\attrib.exe
    attrib +H "Installer.exe"
    3⤵
    - Views/modifies file attributes
    PID:1592
- - C:\Users\Admin\AppData\Local\Temp\main\7z.exe
    7z.exe e extracted/file_2.zip -oextracted
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    PID:3328

C:\ProgramData\Roaming\O.exe
C:\ProgramData\Roaming\O.exe
1⤵
- 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:4880

C:\ProgramData\Roaming\O.exe
C:\ProgramData\Roaming\O.exe
1⤵
- 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:3408

C:\ProgramData\Roaming\O.exe
C:\ProgramData\Roaming\O.exe
1⤵
- 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:4336

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

System Information Discovery