xloader | 587dbf96979d7f8de55234e0b9c2f41332ecbfcbe9260b5ed2ddca34bfbc4391

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	HAWB AND INV.exe

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2488-25-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2488-33-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2232-36-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2752	powershell.exe
2924	powershell.exe
768	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	HAWB AND INV.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	HAWB AND INV.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	HAWB AND INV.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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	HAWB AND INV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	HAWB AND INV.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1796 set thread context of 2488	1796	HAWB AND INV.exe	40
PID 2488 set thread context of 1188	2488	HAWB AND INV.exe	21
PID 2488 set thread context of 1188	2488	HAWB AND INV.exe	21
PID 2232 set thread context of 1188	2232	wlanext.exe	21

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 6 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	HAWB AND INV.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.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
3016	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2924	powershell.exe
2752	powershell.exe
2488	HAWB AND INV.exe
2488	HAWB AND INV.exe
768	powershell.exe
2488	HAWB AND INV.exe
2232	wlanext.exe
2232	wlanext.exe
2232	wlanext.exe
2232	wlanext.exe
2232	wlanext.exe
2232	wlanext.exe
2232	wlanext.exe
2232	wlanext.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2488	HAWB AND INV.exe
2488	HAWB AND INV.exe
2488	HAWB AND INV.exe
2488	HAWB AND INV.exe
2232	wlanext.exe
2232	wlanext.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2924	powershell.exe
Token: SeDebugPrivilege	2752	powershell.exe
Token: SeDebugPrivilege	2488	HAWB AND INV.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeDebugPrivilege	2232	wlanext.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2752	1796	HAWB AND INV.exe	31
PID 1796 wrote to memory of 2752	1796	HAWB AND INV.exe	31
PID 1796 wrote to memory of 2752	1796	HAWB AND INV.exe	31
PID 1796 wrote to memory of 2752	1796	HAWB AND INV.exe	31
PID 1796 wrote to memory of 2924	1796	HAWB AND INV.exe	34
PID 1796 wrote to memory of 2924	1796	HAWB AND INV.exe	34
PID 1796 wrote to memory of 2924	1796	HAWB AND INV.exe	34
PID 1796 wrote to memory of 2924	1796	HAWB AND INV.exe	34
PID 1796 wrote to memory of 3016	1796	HAWB AND INV.exe	36
PID 1796 wrote to memory of 3016	1796	HAWB AND INV.exe	36
PID 1796 wrote to memory of 3016	1796	HAWB AND INV.exe	36
PID 1796 wrote to memory of 3016	1796	HAWB AND INV.exe	36
PID 1796 wrote to memory of 768	1796	HAWB AND INV.exe	38
PID 1796 wrote to memory of 768	1796	HAWB AND INV.exe	38
PID 1796 wrote to memory of 768	1796	HAWB AND INV.exe	38
PID 1796 wrote to memory of 768	1796	HAWB AND INV.exe	38
PID 1796 wrote to memory of 2488	1796	HAWB AND INV.exe	40
PID 1796 wrote to memory of 2488	1796	HAWB AND INV.exe	40
PID 1796 wrote to memory of 2488	1796	HAWB AND INV.exe	40
PID 1796 wrote to memory of 2488	1796	HAWB AND INV.exe	40
PID 1796 wrote to memory of 2488	1796	HAWB AND INV.exe	40
PID 1796 wrote to memory of 2488	1796	HAWB AND INV.exe	40
PID 1796 wrote to memory of 2488	1796	HAWB AND INV.exe	40
PID 1188 wrote to memory of 2232	1188	Explorer.EXE	41
PID 1188 wrote to memory of 2232	1188	Explorer.EXE	41
PID 1188 wrote to memory of 2232	1188	Explorer.EXE	41
PID 1188 wrote to memory of 2232	1188	Explorer.EXE	41

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\HAWB AND INV.exe
  "C:\Users\Admin\AppData\Local\Temp\HAWB AND INV.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:1796
- - 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\HAWB AND INV.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2752
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qxnptkmQbHB.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2924
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qxnptkmQbHB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D19.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3016
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qxnptkmQbHB.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:768
- - C:\Users\Admin\AppData\Local\Temp\HAWB AND INV.exe
    "C:\Users\Admin\AppData\Local\Temp\HAWB AND INV.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2488
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:2232

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

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion