xloader | 7097c7689a872b74cc3eed23f91f1622c0789c12bf887b9a6298c4f49f19346d

Virtualization/Sandbox Evasion

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1160-18-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1160-35-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/5020-71-0x0000000000D60000-0x0000000000D89000-memory.dmp	xloader

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1508	powershell.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	SWIFT k.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	SWIFT k.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	SWIFT k.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	SWIFT k.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	SWIFT k.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	SWIFT k.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 1160	2860	SWIFT k.exe	94
PID 1160 set thread context of 3520	1160	SWIFT k.exe	56
PID 5020 set thread context of 3520	5020	rundll32.exe	56

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	SWIFT k.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
1508	powershell.exe
1160	SWIFT k.exe
1160	SWIFT k.exe
1508	powershell.exe
1160	SWIFT k.exe
1160	SWIFT k.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe
5020	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1160	SWIFT k.exe
1160	SWIFT k.exe
1160	SWIFT k.exe
5020	rundll32.exe
5020	rundll32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	powershell.exe
Token: SeDebugPrivilege	1160	SWIFT k.exe
Token: SeDebugPrivilege	5020	rundll32.exe
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 1508	2860	SWIFT k.exe	92
PID 2860 wrote to memory of 1508	2860	SWIFT k.exe	92
PID 2860 wrote to memory of 1508	2860	SWIFT k.exe	92
PID 2860 wrote to memory of 1160	2860	SWIFT k.exe	94
PID 2860 wrote to memory of 1160	2860	SWIFT k.exe	94
PID 2860 wrote to memory of 1160	2860	SWIFT k.exe	94
PID 2860 wrote to memory of 1160	2860	SWIFT k.exe	94
PID 2860 wrote to memory of 1160	2860	SWIFT k.exe	94
PID 2860 wrote to memory of 1160	2860	SWIFT k.exe	94
PID 3520 wrote to memory of 5020	3520	Explorer.EXE	95
PID 3520 wrote to memory of 5020	3520	Explorer.EXE	95
PID 3520 wrote to memory of 5020	3520	Explorer.EXE	95
PID 5020 wrote to memory of 2132	5020	rundll32.exe	96
PID 5020 wrote to memory of 2132	5020	rundll32.exe	96
PID 5020 wrote to memory of 2132	5020	rundll32.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\SWIFT k.exe
  "C:\Users\Admin\AppData\Local\Temp\SWIFT k.exe"
  2⤵
  - 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 use of WriteProcessMemory
  PID:2860
- - 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\SWIFT k.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1508
- - C:\Users\Admin\AppData\Local\Temp\SWIFT k.exe
    "C:\Users\Admin\AppData\Local\Temp\SWIFT k.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1160
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5020
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\SWIFT k.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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