xloader | 64b9f04e500e377972f23c923e678d2d3ec4aecc42d0634de4e09570b1d58d35

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	Documents_pdf03243232 SHPMT.exe

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2292-26-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/2292-29-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1756-32-0x0000000000070000-0x000000000009B000-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
2604	powershell.exe
2360	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	Documents_pdf03243232 SHPMT.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\SystemBiosVersion	Documents_pdf03243232 SHPMT.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Documents_pdf03243232 SHPMT.exe

Deletes itself 1 IoCs

pid	Process
984	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

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Documents_pdf03243232 SHPMT.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Documents_pdf03243232 SHPMT.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2680 set thread context of 2292	2680	Documents_pdf03243232 SHPMT.exe	37
PID 2292 set thread context of 1216	2292	Documents_pdf03243232 SHPMT.exe	21
PID 2292 set thread context of 1216	2292	Documents_pdf03243232 SHPMT.exe	21
PID 1756 set thread context of 1216	1756	wscript.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Documents_pdf03243232 SHPMT.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	wscript.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
2140	schtasks.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2680	Documents_pdf03243232 SHPMT.exe
2604	powershell.exe
2360	powershell.exe
2680	Documents_pdf03243232 SHPMT.exe
2292	Documents_pdf03243232 SHPMT.exe
2292	Documents_pdf03243232 SHPMT.exe
2292	Documents_pdf03243232 SHPMT.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe
1756	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2292	Documents_pdf03243232 SHPMT.exe
2292	Documents_pdf03243232 SHPMT.exe
2292	Documents_pdf03243232 SHPMT.exe
2292	Documents_pdf03243232 SHPMT.exe
1756	wscript.exe
1756	wscript.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	Documents_pdf03243232 SHPMT.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	2360	powershell.exe
Token: SeDebugPrivilege	2292	Documents_pdf03243232 SHPMT.exe
Token: SeDebugPrivilege	1756	wscript.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2604	2680	Documents_pdf03243232 SHPMT.exe	30
PID 2680 wrote to memory of 2604	2680	Documents_pdf03243232 SHPMT.exe	30
PID 2680 wrote to memory of 2604	2680	Documents_pdf03243232 SHPMT.exe	30
PID 2680 wrote to memory of 2604	2680	Documents_pdf03243232 SHPMT.exe	30
PID 2680 wrote to memory of 2360	2680	Documents_pdf03243232 SHPMT.exe	33
PID 2680 wrote to memory of 2360	2680	Documents_pdf03243232 SHPMT.exe	33
PID 2680 wrote to memory of 2360	2680	Documents_pdf03243232 SHPMT.exe	33
PID 2680 wrote to memory of 2360	2680	Documents_pdf03243232 SHPMT.exe	33
PID 2680 wrote to memory of 2140	2680	Documents_pdf03243232 SHPMT.exe	34
PID 2680 wrote to memory of 2140	2680	Documents_pdf03243232 SHPMT.exe	34
PID 2680 wrote to memory of 2140	2680	Documents_pdf03243232 SHPMT.exe	34
PID 2680 wrote to memory of 2140	2680	Documents_pdf03243232 SHPMT.exe	34
PID 2680 wrote to memory of 2292	2680	Documents_pdf03243232 SHPMT.exe	37
PID 2680 wrote to memory of 2292	2680	Documents_pdf03243232 SHPMT.exe	37
PID 2680 wrote to memory of 2292	2680	Documents_pdf03243232 SHPMT.exe	37
PID 2680 wrote to memory of 2292	2680	Documents_pdf03243232 SHPMT.exe	37
PID 2680 wrote to memory of 2292	2680	Documents_pdf03243232 SHPMT.exe	37
PID 2680 wrote to memory of 2292	2680	Documents_pdf03243232 SHPMT.exe	37
PID 2680 wrote to memory of 2292	2680	Documents_pdf03243232 SHPMT.exe	37
PID 1216 wrote to memory of 1756	1216	Explorer.EXE	38
PID 1216 wrote to memory of 1756	1216	Explorer.EXE	38
PID 1216 wrote to memory of 1756	1216	Explorer.EXE	38
PID 1216 wrote to memory of 1756	1216	Explorer.EXE	38
PID 1756 wrote to memory of 984	1756	wscript.exe	39
PID 1756 wrote to memory of 984	1756	wscript.exe	39
PID 1756 wrote to memory of 984	1756	wscript.exe	39
PID 1756 wrote to memory of 984	1756	wscript.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\Documents_pdf03243232 SHPMT.exe
  "C:\Users\Admin\AppData\Local\Temp\Documents_pdf03243232 SHPMT.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 behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2680
- - 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\Documents_pdf03243232 SHPMT.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2604
- - 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"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2360
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\itovgklgs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDF9.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2140
- - C:\Users\Admin\AppData\Local\Temp\Documents_pdf03243232 SHPMT.exe
    "C:\Users\Admin\AppData\Local\Temp\Documents_pdf03243232 SHPMT.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2292
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.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:1756
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Documents_pdf03243232 SHPMT.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:984

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