Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250610-en
  • resource tags

    arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03/12/2025, 13:22

General

  • Target
    file.exe
  • Size 3.3MB
  • Sample251203-qmb8ea1jdn
  • SHA256 1ebcfddad6ca2b49edfeacdfb3e9f074333729b965d637aa44ecb8df3626efe9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Xmrig family
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 23 IoCs
  • 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.

  • Creates new service(s) 2 TTPs
  • Cryptocurrency Miner

    Makes network request to known mining pool URL.

  • Executes dropped EXE 1 IoCs
  • Stops running service(s) 4 TTPs
  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 28 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Launches sc.exe 4 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Modifies data under HKEY_USERS 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4824
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1448
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4344
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
          PID:4420
      • C:\Windows\system32\dialer.exe
        C:\Windows\system32\dialer.exe
        2⤵
          PID:1580
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe delete "NHHNXIBN"
          2⤵
          • Launches sc.exe
          PID:5084
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe create "NHHNXIBN" binpath= "C:\ProgramData\lyvmbzqbnqcl\bokjoamzbbvc.exe" start= "auto"
          2⤵
          • Launches sc.exe
          PID:5068
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop eventlog
          2⤵
          • Launches sc.exe
          PID:5944
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe start "NHHNXIBN"
          2⤵
          • Launches sc.exe
          PID:4852
      • C:\ProgramData\lyvmbzqbnqcl\bokjoamzbbvc.exe
        C:\ProgramData\lyvmbzqbnqcl\bokjoamzbbvc.exe
        1⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3772
        • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
          C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4108
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4508
          • C:\Windows\system32\wusa.exe
            wusa /uninstall /kb:890830 /quiet /norestart
            3⤵
              PID:4472
          • C:\Windows\system32\dialer.exe
            C:\Windows\system32\dialer.exe
            2⤵
              PID:3660
            • C:\Windows\system32\dialer.exe
              C:\Windows\system32\dialer.exe
              2⤵
                PID:4528
              • C:\Windows\system32\dialer.exe
                dialer.exe
                2⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of FindShellTrayWindow
                PID:2856

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  bokjoamzbbvc.exe

                  • Path C:\ProgramData\lyvmbzqbnqcl\bokjoamzbbvc.exe
                  • Size 3.3MB
                  • SHA256 1ebcfddad6ca2b49edfeacdfb3e9f074333729b965d637aa44ecb8df3626efe9
                  • MD5 SHA1 SHA512 SSDEEP

                  __PSScriptPolicyTest_rq5m5oic.lbu.ps1

                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rq5m5oic.lbu.ps1
                  • Size 60B
                  • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                  • MD5 SHA1 SHA512

                  memory/1448-0-0x0000028017200000-0x0000028017210000-memory.dmp

                  memory/1448-1-0x0000028017200000-0x0000028017210000-memory.dmp

                  memory/1448-4-0x0000028030ED0000-0x0000028030EF2000-memory.dmp

                  memory/1448-9-0x0000028017200000-0x0000028017210000-memory.dmp

                  memory/1448-10-0x00007FF45B1E0000-0x00007FF45B1F0000-memory.dmp

                  memory/1448-17-0x0000028030F70000-0x0000028030F8C000-memory.dmp

                  memory/1448-18-0x0000028030F90000-0x0000028031043000-memory.dmp

                  memory/1448-19-0x0000028031050000-0x000002803105A000-memory.dmp

                  memory/1448-20-0x0000028031080000-0x000002803109C000-memory.dmp

                  memory/1448-21-0x0000028031060000-0x000002803106A000-memory.dmp

                  memory/1448-22-0x00000280310C0000-0x00000280310DA000-memory.dmp

                  memory/1448-23-0x0000028031070000-0x0000028031078000-memory.dmp

                  memory/1448-24-0x00000280310A0000-0x00000280310A6000-memory.dmp

                  memory/1448-25-0x00000280310B0000-0x00000280310BA000-memory.dmp

                  memory/1448-26-0x0000028017200000-0x0000028017210000-memory.dmp

                  memory/1580-32-0x0000000140000000-0x000000014002B000-memory.dmp

                  memory/1580-34-0x0000000140000000-0x000000014002B000-memory.dmp

                  memory/1580-31-0x0000000140000000-0x000000014002B000-memory.dmp

                  memory/1580-30-0x0000000140000000-0x000000014002B000-memory.dmp

                  memory/1580-29-0x0000000140000000-0x000000014002B000-memory.dmp

                  memory/2856-70-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-88-0x0000021D52B30000-0x0000021D52B50000-memory.dmp

                  memory/2856-80-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-78-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-76-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-77-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-67-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-74-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-85-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-87-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-86-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-92-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-91-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-94-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-95-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-90-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-89-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-68-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-84-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-75-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-82-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-83-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-81-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-79-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-73-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-72-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-71-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-69-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/2856-93-0x0000000140000000-0x00000001408CB000-memory.dmp

                  memory/4108-50-0x000001EA713A0000-0x000001EA71453000-memory.dmp

                  memory/4528-58-0x0000000140000000-0x0000000140014000-memory.dmp

                  memory/4528-66-0x0000000140000000-0x0000000140014000-memory.dmp

                  memory/4528-62-0x0000000140000000-0x0000000140014000-memory.dmp

                  memory/4528-61-0x0000000140000000-0x0000000140014000-memory.dmp

                  memory/4528-60-0x0000000140000000-0x0000000140014000-memory.dmp

                  memory/4528-59-0x0000000140000000-0x0000000140014000-memory.dmp