Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-05-2024 15:01

General

  • Target

    Gbeta.exe

  • Size

    620KB

  • MD5

    a80fd81703b974b03a3e665d9e1a8f81

  • SHA1

    13230cc88893ba287d975caa02464f306dc0a2e1

  • SHA256

    e14916b5552020906ba0c25450f9dcb0c5ab6bcf58d5042c26edde8c6289a1d8

  • SHA512

    198e3dbd8122dfcf4eb3b3dc0da0d382b7ce686e50f5ff9eda031ed1cee54b89f99adbcdd8b5fc3147394c774345ad21f2d0e2943c73847a61c6b51da06cdc4f

  • SSDEEP

    1536:xDOptR2uwOmSyGoiBrhAj9OvGJbN+iBa0aQT76+ueOWOiJf6zjjjZSE4MMMzTXqB:xKptdvmSLx5gbwzQTNueOWOiYLgSni

Malware Config

Extracted

Family

xworm

C2

valid-saint.gl.at.ply.gg:23570

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    GBeta.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Gbeta.exe
    "C:\Users\Admin\AppData\Local\Temp\Gbeta.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Gbeta.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1540
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Gbeta.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3856
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\GBeta.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4928
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'GBeta.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4784
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "GBeta" /tr "C:\ProgramData\GBeta.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1688
  • C:\Windows\system32\notepad.exe
    "C:\Windows\system32\notepad.exe"
    1⤵
      PID:4312
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4208
    • C:\ProgramData\GBeta.exe
      C:\ProgramData\GBeta.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4552
    • C:\ProgramData\GBeta.exe
      C:\ProgramData\GBeta.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2984
    • C:\ProgramData\GBeta.exe
      C:\ProgramData\GBeta.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3548

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\GBeta.exe

      Filesize

      620KB

      MD5

      a80fd81703b974b03a3e665d9e1a8f81

      SHA1

      13230cc88893ba287d975caa02464f306dc0a2e1

      SHA256

      e14916b5552020906ba0c25450f9dcb0c5ab6bcf58d5042c26edde8c6289a1d8

      SHA512

      198e3dbd8122dfcf4eb3b3dc0da0d382b7ce686e50f5ff9eda031ed1cee54b89f99adbcdd8b5fc3147394c774345ad21f2d0e2943c73847a61c6b51da06cdc4f

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\GBeta.exe.log

      Filesize

      654B

      MD5

      2ff39f6c7249774be85fd60a8f9a245e

      SHA1

      684ff36b31aedc1e587c8496c02722c6698c1c4e

      SHA256

      e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

      SHA512

      1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      d85ba6ff808d9e5444a4b369f5bc2730

      SHA1

      31aa9d96590fff6981b315e0b391b575e4c0804a

      SHA256

      84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

      SHA512

      8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      d321afaf0dfc03c485035eb98553a723

      SHA1

      f2a53c9612e901686e68ef520ddc3bf31d40c08c

      SHA256

      a0bae7a496d842dbb6088b8c8a8d52b52476d4346e7ef01fef2a54838b446621

      SHA512

      813bd36621b2bc9a7971306d475e20f815014262f6cda36e7920a71b3768c3be500cb28b482cfd3e982a3e845fc156dc1d6dfa678c992bc790adf704d1a3abbf

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      eb1ad317bd25b55b2bbdce8a28a74a94

      SHA1

      98a3978be4d10d62e7411946474579ee5bdc5ea6

      SHA256

      9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

      SHA512

      d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qao3bxar.v3g.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\GBeta.lnk

      Filesize

      658B

      MD5

      c97ca90abd0d6a92bd8218240ea06566

      SHA1

      f346723e67b450a67735208b9eae7d8b4eb23d5d

      SHA256

      568c084f6cf9cb6fea81a369023ae52f389a8be913546c03d78899b67c32ef3a

      SHA512

      5a907656e5c471d19641074fa03798027f4c2e5f58402ca17fe1ae9f80c236d5c43eedf4b2885f4eef29b31045be76f751b309f12f4d6ffd2eeea7aa0181f764

    • memory/1540-18-0x00007FFB22800000-0x00007FFB232C1000-memory.dmp

      Filesize

      10.8MB

    • memory/1540-15-0x00007FFB22800000-0x00007FFB232C1000-memory.dmp

      Filesize

      10.8MB

    • memory/1540-14-0x00007FFB22800000-0x00007FFB232C1000-memory.dmp

      Filesize

      10.8MB

    • memory/1540-13-0x000002BAF5F80000-0x000002BAF5FA2000-memory.dmp

      Filesize

      136KB

    • memory/1540-3-0x00007FFB22800000-0x00007FFB232C1000-memory.dmp

      Filesize

      10.8MB

    • memory/3256-0-0x00007FFB22803000-0x00007FFB22805000-memory.dmp

      Filesize

      8KB

    • memory/3256-2-0x00007FFB22800000-0x00007FFB232C1000-memory.dmp

      Filesize

      10.8MB

    • memory/3256-78-0x00007FFB22800000-0x00007FFB232C1000-memory.dmp

      Filesize

      10.8MB

    • memory/3256-77-0x00007FFB22803000-0x00007FFB22805000-memory.dmp

      Filesize

      8KB

    • memory/3256-1-0x0000000000A60000-0x0000000000B00000-memory.dmp

      Filesize

      640KB

    • memory/4208-62-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-71-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-70-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-69-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-68-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-72-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-73-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-74-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-63-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB

    • memory/4208-64-0x000001967E900000-0x000001967E901000-memory.dmp

      Filesize

      4KB