ff576b9311ef047d8ed98cb64895b0ee0ffd02cfec36ed3d1b63c12fd541d8dd

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "0"	powershell.exe

Modifies Windows Defender notification settings 3 TTPs 3 IoCs

defense_evasion trojan

Windows Service

Modify Registry

Disable or Modify Tools

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications	powershell.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	powershell.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableEnhancedNotifications = "1"	powershell.exe

UAC bypass 3 TTPs 1 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	powershell.exe

Badlisted process makes network request 1 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
1	1148	PowerShell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
1	1148	PowerShell.exe

Executes dropped EXE 3 IoCs

pid	Process
3172	asd.exe
4660	UnRAR.exe
4456	Yjzlxkdoi.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs

execution

Visual Basic

T1059.005

pid	Process
1988	WScript.exe

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsOptions	asd.exe
File created	C:\Program Files\WindowsOptions\UnRAR.exe	asd.exe
File opened for modification	C:\Program Files\WindowsOptions\UnRAR.exe	asd.exe
File created	C:\Program Files\WindowsOptions\install.vbs	asd.exe
File opened for modification	C:\Program Files\WindowsOptions\install.vbs	asd.exe
File created	C:\Program Files\WindowsOptions\run.ps1	asd.exe
File opened for modification	C:\Program Files\WindowsOptions\Yjzlxkdoi.exe	UnRAR.exe
File created	C:\Program Files\WindowsOptions\__tmp_rar_sfx_access_check_240748015	asd.exe
File created	C:\Program Files\WindowsOptions\sfx.rar	asd.exe
File opened for modification	C:\Program Files\WindowsOptions\sfx.rar	asd.exe
File opened for modification	C:\Program Files\WindowsOptions\run.ps1	asd.exe
File created	C:\Program Files\WindowsOptions\Yjzlxkdoi.exe	UnRAR.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1148	PowerShell.exe
3004	powershell.exe

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 1 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	Yjzlxkdoi.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1079202589-886135813-2527035092-1000_Classes\Local Settings	asd.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4456	Yjzlxkdoi.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1148	PowerShell.exe
1148	PowerShell.exe
3004	powershell.exe
3004	powershell.exe
3004	powershell.exe
3004	powershell.exe
3004	powershell.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe
4456	Yjzlxkdoi.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1148	PowerShell.exe
Token: SeIncreaseQuotaPrivilege	1148	PowerShell.exe
Token: SeSecurityPrivilege	1148	PowerShell.exe
Token: SeTakeOwnershipPrivilege	1148	PowerShell.exe
Token: SeLoadDriverPrivilege	1148	PowerShell.exe
Token: SeSystemProfilePrivilege	1148	PowerShell.exe
Token: SeSystemtimePrivilege	1148	PowerShell.exe
Token: SeProfSingleProcessPrivilege	1148	PowerShell.exe
Token: SeIncBasePriorityPrivilege	1148	PowerShell.exe
Token: SeCreatePagefilePrivilege	1148	PowerShell.exe
Token: SeBackupPrivilege	1148	PowerShell.exe
Token: SeRestorePrivilege	1148	PowerShell.exe
Token: SeShutdownPrivilege	1148	PowerShell.exe
Token: SeDebugPrivilege	1148	PowerShell.exe
Token: SeSystemEnvironmentPrivilege	1148	PowerShell.exe
Token: SeRemoteShutdownPrivilege	1148	PowerShell.exe
Token: SeUndockPrivilege	1148	PowerShell.exe
Token: SeManageVolumePrivilege	1148	PowerShell.exe
Token: 33	1148	PowerShell.exe
Token: 34	1148	PowerShell.exe
Token: 35	1148	PowerShell.exe
Token: 36	1148	PowerShell.exe
Token: SeDebugPrivilege	3004	powershell.exe
Token: SeIncreaseQuotaPrivilege	1148	PowerShell.exe
Token: SeSecurityPrivilege	1148	PowerShell.exe
Token: SeTakeOwnershipPrivilege	1148	PowerShell.exe
Token: SeLoadDriverPrivilege	1148	PowerShell.exe
Token: SeSystemProfilePrivilege	1148	PowerShell.exe
Token: SeSystemtimePrivilege	1148	PowerShell.exe
Token: SeProfSingleProcessPrivilege	1148	PowerShell.exe
Token: SeIncBasePriorityPrivilege	1148	PowerShell.exe
Token: SeCreatePagefilePrivilege	1148	PowerShell.exe
Token: SeBackupPrivilege	1148	PowerShell.exe
Token: SeRestorePrivilege	1148	PowerShell.exe
Token: SeShutdownPrivilege	1148	PowerShell.exe
Token: SeDebugPrivilege	1148	PowerShell.exe
Token: SeSystemEnvironmentPrivilege	1148	PowerShell.exe
Token: SeRemoteShutdownPrivilege	1148	PowerShell.exe
Token: SeUndockPrivilege	1148	PowerShell.exe
Token: SeManageVolumePrivilege	1148	PowerShell.exe
Token: 33	1148	PowerShell.exe
Token: 34	1148	PowerShell.exe
Token: 35	1148	PowerShell.exe
Token: 36	1148	PowerShell.exe
Token: SeIncreaseQuotaPrivilege	1148	PowerShell.exe
Token: SeSecurityPrivilege	1148	PowerShell.exe
Token: SeTakeOwnershipPrivilege	1148	PowerShell.exe
Token: SeLoadDriverPrivilege	1148	PowerShell.exe
Token: SeSystemProfilePrivilege	1148	PowerShell.exe
Token: SeSystemtimePrivilege	1148	PowerShell.exe
Token: SeProfSingleProcessPrivilege	1148	PowerShell.exe
Token: SeIncBasePriorityPrivilege	1148	PowerShell.exe
Token: SeCreatePagefilePrivilege	1148	PowerShell.exe
Token: SeBackupPrivilege	1148	PowerShell.exe
Token: SeRestorePrivilege	1148	PowerShell.exe
Token: SeShutdownPrivilege	1148	PowerShell.exe
Token: SeDebugPrivilege	1148	PowerShell.exe
Token: SeSystemEnvironmentPrivilege	1148	PowerShell.exe
Token: SeRemoteShutdownPrivilege	1148	PowerShell.exe
Token: SeUndockPrivilege	1148	PowerShell.exe
Token: SeManageVolumePrivilege	1148	PowerShell.exe
Token: 33	1148	PowerShell.exe
Token: 34	1148	PowerShell.exe
Token: 35	1148	PowerShell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 2352	1148	PowerShell.exe	90
PID 2352 wrote to memory of 2672	2352	csc.exe	91
PID 1148 wrote to memory of 3172	1148	PowerShell.exe	93
PID 3172 wrote to memory of 1988	3172	asd.exe	94
PID 1988 wrote to memory of 3004	1988	WScript.exe	95
PID 3004 wrote to memory of 2976	3004	powershell.exe	98
PID 3004 wrote to memory of 4660	3004	powershell.exe	99
PID 3004 wrote to memory of 4456	3004	powershell.exe	100

C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\verify.ps1
1⤵
- Badlisted process makes network request
- Downloads MZ/PE file
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\31xdj21e\31xdj21e.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES5B55.tmp" "c:\Users\Admin\AppData\Local\Temp\31xdj21e\CSCECAFD296FC2A40A7BA155ED10BA3A29.TMP"
    3⤵
    PID:2672
- C:\Users\Admin\AppData\Roaming\Windows\asd.exe
  "C:\Users\Admin\AppData\Roaming\Windows\asd.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3172
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Program Files\WindowsOptions\install.vbs"
    3⤵
    - Executes a VBScript file via the Windows Script Host.
    - Suspicious use of WriteProcessMemory
    PID:1988
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "run.ps1"
      4⤵
      Modifies Windows Defender DisableAntiSpyware settings
      Modifies Windows Defender notification settings
      UAC bypass
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3004
    - - C:\Windows\system32\CiTool.exe
        
        "C:\Windows\system32\CiTool.exe" -r
        5⤵
        
        PID:2976
    - - C:\Program Files\WindowsOptions\UnRAR.exe
        
        "C:\Program Files\WindowsOptions\UnRAR.exe" x -y -pByeFriend! "C:\Program Files\WindowsOptions\sfx.rar" "C:\Program Files\WindowsOptions\"
        5⤵
        Executes dropped EXE
        Drops file in Program Files directory
        
        PID:4660
    - - C:\Program Files\WindowsOptions\Yjzlxkdoi.exe
        
        "C:\Program Files\WindowsOptions\Yjzlxkdoi.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: AddClipboardFormatListener
        Suspicious behavior: EnumeratesProcesses
        
        PID:4456

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:964

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Visual Basic

T1059.005

Persistence

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry