8f458a7e77b48b60467dc6338ea5854db2afa53754fb2098edd8caf415ca6e64

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	DHL_INVOICE.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	DHL_INVOICE.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

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

Checks computer location settings 2 TTPs 1 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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	DHL_INVOICE.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	DHL_INVOICE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	DHL_INVOICE.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{B5E645B0-14C3-44A5-93FB-F9CFDB6FDB3B}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{2B7DCF99-ABCD-473D-AF22-CC172E8659F4}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1828 set thread context of 4036	1828	DHL_INVOICE.exe	99

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

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
2220	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1828	DHL_INVOICE.exe
1828	DHL_INVOICE.exe
1828	DHL_INVOICE.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4036	DHL_INVOICE.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1828	DHL_INVOICE.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4036	DHL_INVOICE.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1828 wrote to memory of 2220	1828	DHL_INVOICE.exe	96
PID 1828 wrote to memory of 2220	1828	DHL_INVOICE.exe	96
PID 1828 wrote to memory of 2220	1828	DHL_INVOICE.exe	96
PID 1828 wrote to memory of 4644	1828	DHL_INVOICE.exe	98
PID 1828 wrote to memory of 4644	1828	DHL_INVOICE.exe	98
PID 1828 wrote to memory of 4644	1828	DHL_INVOICE.exe	98
PID 1828 wrote to memory of 4036	1828	DHL_INVOICE.exe	99
PID 1828 wrote to memory of 4036	1828	DHL_INVOICE.exe	99
PID 1828 wrote to memory of 4036	1828	DHL_INVOICE.exe	99
PID 1828 wrote to memory of 4036	1828	DHL_INVOICE.exe	99
PID 1828 wrote to memory of 4036	1828	DHL_INVOICE.exe	99
PID 1828 wrote to memory of 4036	1828	DHL_INVOICE.exe	99
PID 1828 wrote to memory of 4036	1828	DHL_INVOICE.exe	99
PID 1828 wrote to memory of 4036	1828	DHL_INVOICE.exe	99

C:\Users\Admin\AppData\Local\Temp\DHL_INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_INVOICE.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1828
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QxlYzqrJgFXtQc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp53F7.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2220
- C:\Users\Admin\AppData\Local\Temp\DHL_INVOICE.exe
  "{path}"
  2⤵
  PID:4644
- C:\Users\Admin\AppData\Local\Temp\DHL_INVOICE.exe
  "{path}"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:4036

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:3220

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

6

Virtualization/Sandbox Evasion

2