imminent | 290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1984 set thread context of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30

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

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

pid	Process
524	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe
Token: SeDebugPrivilege	772	RegAsm.exe
Token: 33	772	RegAsm.exe
Token: SeIncBasePriorityPrivilege	772	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
772	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 524	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	28
PID 1984 wrote to memory of 524	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	28
PID 1984 wrote to memory of 524	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	28
PID 1984 wrote to memory of 524	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	28
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30
PID 1984 wrote to memory of 772	1984	290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe	30

C:\Users\Admin\AppData\Local\Temp\290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe
"C:\Users\Admin\AppData\Local\Temp\290906f49b5ee43d584cd47d44d8cc86662ba975494049d0f518fe3fcf9fd743.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CipuKk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBAF7.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:524
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:772

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

Persistence

Scheduled Task

1

Privilege Escalation

Scheduled Task

1

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2