xloader | 7097c7689a872b74cc3eed23f91f1622c0789c12bf887b9a6298c4f49f19346d

Virtualization/Sandbox Evasion

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

Xloader payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2024-15-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/3016-20-0x0000000000100000-0x0000000000129000-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
3056	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\VideoBiosVersion	SWIFT k.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	SWIFT k.exe

Deletes itself 1 IoCs

pid	Process
3024	cmd.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 2412 set thread context of 2024	2412	SWIFT k.exe	32
PID 2024 set thread context of 1364	2024	SWIFT k.exe	20
PID 3016 set thread context of 1364	3016	chkdsk.exe	20

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	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
2024	SWIFT k.exe
2024	SWIFT k.exe
3056	powershell.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe
3016	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2024	SWIFT k.exe
2024	SWIFT k.exe
2024	SWIFT k.exe
3016	chkdsk.exe
3016	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2024	SWIFT k.exe
Token: SeDebugPrivilege	3056	powershell.exe
Token: SeDebugPrivilege	3016	chkdsk.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 3056	2412	SWIFT k.exe	29
PID 2412 wrote to memory of 3056	2412	SWIFT k.exe	29
PID 2412 wrote to memory of 3056	2412	SWIFT k.exe	29
PID 2412 wrote to memory of 3056	2412	SWIFT k.exe	29
PID 2412 wrote to memory of 2024	2412	SWIFT k.exe	32
PID 2412 wrote to memory of 2024	2412	SWIFT k.exe	32
PID 2412 wrote to memory of 2024	2412	SWIFT k.exe	32
PID 2412 wrote to memory of 2024	2412	SWIFT k.exe	32
PID 2412 wrote to memory of 2024	2412	SWIFT k.exe	32
PID 2412 wrote to memory of 2024	2412	SWIFT k.exe	32
PID 2412 wrote to memory of 2024	2412	SWIFT k.exe	32
PID 1364 wrote to memory of 3016	1364	Explorer.EXE	33
PID 1364 wrote to memory of 3016	1364	Explorer.EXE	33
PID 1364 wrote to memory of 3016	1364	Explorer.EXE	33
PID 1364 wrote to memory of 3016	1364	Explorer.EXE	33
PID 3016 wrote to memory of 3024	3016	chkdsk.exe	34
PID 3016 wrote to memory of 3024	3016	chkdsk.exe	34
PID 3016 wrote to memory of 3024	3016	chkdsk.exe	34
PID 3016 wrote to memory of 3024	3016	chkdsk.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1364
- 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
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2412
- - 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:3056
- - 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:2024
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3016
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\SWIFT k.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:3024

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

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2