xloader | 64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe

Xloader payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3596-50-0x0000000000400000-0x000000000042B000-memory.dmp	xloader

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3020	powershell.exe
3248	powershell.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

defense_evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.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	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3148 set thread context of 3596	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	103

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
2292	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
3020	powershell.exe
3020	powershell.exe
3248	powershell.exe
3248	powershell.exe
3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
3596	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
3596	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
3596	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
Token: SeDebugPrivilege	3020	powershell.exe
Token: SeDebugPrivilege	3248	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 3020	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	97
PID 3148 wrote to memory of 3020	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	97
PID 3148 wrote to memory of 3020	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	97
PID 3148 wrote to memory of 3248	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	99
PID 3148 wrote to memory of 3248	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	99
PID 3148 wrote to memory of 3248	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	99
PID 3148 wrote to memory of 2292	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	101
PID 3148 wrote to memory of 2292	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	101
PID 3148 wrote to memory of 2292	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	101
PID 3148 wrote to memory of 3596	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	103
PID 3148 wrote to memory of 3596	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	103
PID 3148 wrote to memory of 3596	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	103
PID 3148 wrote to memory of 3596	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	103
PID 3148 wrote to memory of 3596	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	103
PID 3148 wrote to memory of 3596	3148	64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe	103

C:\Users\Admin\AppData\Local\Temp\64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
"C:\Users\Admin\AppData\Local\Temp\64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3020
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\itovgklgs.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3248
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\itovgklgs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp438C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2292
- C:\Users\Admin\AppData\Local\Temp\64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe
  "C:\Users\Admin\AppData\Local\Temp\64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion