amadey | 172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	clip.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	LEAJ.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	clip.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	clip.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	LEAJ.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	LEAJ.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-1-5-21-2344688013-2965468717-2034126-1000\Control Panel\International\Geo\Nation	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Control Panel\International\Geo\Nation	clip.exe

Executes dropped EXE 2 IoCs

pid	Process
3284	clip.exe
2892	LEAJ.exe

VMProtect packed file 3 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/3604-1-0x00000000005B0000-0x0000000001020000-memory.dmp	vmprotect
behavioral2/memory/3604-2-0x00000000005B0000-0x0000000001020000-memory.dmp	vmprotect
behavioral2/memory/3604-14-0x00000000005B0000-0x0000000001020000-memory.dmp	vmprotect

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\USER\S-1-5-21-2344688013-2965468717-2034126-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clip.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000071051\\clip.exe"	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.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	clip.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	LEAJ.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3284	clip.exe
2892	LEAJ.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
2900	2892	WerFault.exe	103

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

T1053

pid	Process
4500	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3848	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3604	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe
3604	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	4628	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 4500	3604	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe	86
PID 3604 wrote to memory of 4500	3604	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe	86
PID 3604 wrote to memory of 4500	3604	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe	86
PID 3604 wrote to memory of 3284	3604	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe	99
PID 3604 wrote to memory of 3284	3604	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe	99
PID 3604 wrote to memory of 3284	3604	172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe	99
PID 3284 wrote to memory of 2412	3284	clip.exe	100
PID 3284 wrote to memory of 2412	3284	clip.exe	100
PID 3284 wrote to memory of 2412	3284	clip.exe	100
PID 2412 wrote to memory of 3848	2412	cmd.exe	102
PID 2412 wrote to memory of 3848	2412	cmd.exe	102
PID 2412 wrote to memory of 3848	2412	cmd.exe	102
PID 2412 wrote to memory of 2892	2412	cmd.exe	103
PID 2412 wrote to memory of 2892	2412	cmd.exe	103
PID 2412 wrote to memory of 2892	2412	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe
"C:\Users\Admin\AppData\Local\Temp\172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3604
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN 172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe /TR "C:\Users\Admin\AppData\Local\Temp\172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01_JC.exe" /F
  2⤵
  - Creates scheduled task(s)
  PID:4500
- C:\Users\Admin\AppData\Local\Temp\1000071051\clip.exe
  "C:\Users\Admin\AppData\Local\Temp\1000071051\clip.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 use of WriteProcessMemory
  PID:3284
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\s2j8.0.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2412
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:3848
  - - C:\ProgramData\presepuesto\LEAJ.exe
      "C:\ProgramData\presepuesto\LEAJ.exe"
      4⤵
      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:2892
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 684
        5⤵
        Program crash
        
        PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2892 -ip 2892
1⤵
PID:1764

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
1⤵
PID:3140

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

Virtualization/Sandbox Evasion