Analysis

  • max time kernel
    19s
  • max time network
    21s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 03:07

General

  • Target

    Updater.exe

  • Size

    2.6MB

  • MD5

    61d3abff46a6bd2946925542c7d30397

  • SHA1

    1fed80a136e67a5b7b6846010a5853400886ee9c

  • SHA256

    b1a351ee61443b8558934dca6b2fa9efb0a6d2d18bae61ace5a761596604dbfa

  • SHA512

    e9e25995faff34da94d30394474471dba45f5993a2efd07f5fb8c15cfdf7b3efa7c89d6796c66323938a1c31b3b89bd7578bef7c4297c6a9b68811f00aa89975

  • SSDEEP

    49152:e+CCncEUAhZfuFtUasR7NICKP6Fhjf+POnLcjzlfXhITNE1u5xY13oNV:c8cMhZfuF6asRxm6Flf++olfX2u1OY13

Malware Config

Signatures

  • xmrig

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

  • XMRig Miner payload 7 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
  • Executes dropped EXE 1 IoCs
  • UPX packed file 12 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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.

  • Modifies data under HKEY_USERS 50 IoCs
  • Suspicious behavior: EnumeratesProcesses 52 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Updater.exe
    "C:\Users\Admin\AppData\Local\Temp\Updater.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2096
    • 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:1492
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
          PID:372
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop UsoSvc
        2⤵
        • Launches sc.exe
        PID:1452
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop WaaSMedicSvc
        2⤵
        • Launches sc.exe
        PID:1468
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop wuauserv
        2⤵
        • Launches sc.exe
        PID:1072
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop bits
        2⤵
        • Launches sc.exe
        PID:1836
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop dosvc
        2⤵
        • Launches sc.exe
        PID:1312
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe delete "WindowsUpdate"
        2⤵
        • Launches sc.exe
        PID:4068
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe create "WindowsUpdate" binpath= "C:\ProgramData\Windows11\Updater.exe" start= "auto"
        2⤵
        • Launches sc.exe
        PID:1060
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop eventlog
        2⤵
        • Launches sc.exe
        PID:4624
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe start "WindowsUpdate"
        2⤵
        • Launches sc.exe
        PID:1520
    • C:\ProgramData\Windows11\Updater.exe
      C:\ProgramData\Windows11\Updater.exe
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4924
      • 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:1596
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2764
        • C:\Windows\system32\wusa.exe
          wusa /uninstall /kb:890830 /quiet /norestart
          3⤵
            PID:5092
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop UsoSvc
          2⤵
          • Launches sc.exe
          PID:2020
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop WaaSMedicSvc
          2⤵
          • Launches sc.exe
          PID:2300
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop wuauserv
          2⤵
          • Launches sc.exe
          PID:3164
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop bits
          2⤵
          • Launches sc.exe
          PID:3936
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop dosvc
          2⤵
          • Launches sc.exe
          PID:3868
        • C:\Windows\system32\conhost.exe
          C:\Windows\system32\conhost.exe
          2⤵
            PID:4320
          • C:\Windows\system32\svchost.exe
            svchost.exe
            2⤵
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1356

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\Windows11\Updater.exe

          Filesize

          2.6MB

          MD5

          61d3abff46a6bd2946925542c7d30397

          SHA1

          1fed80a136e67a5b7b6846010a5853400886ee9c

          SHA256

          b1a351ee61443b8558934dca6b2fa9efb0a6d2d18bae61ace5a761596604dbfa

          SHA512

          e9e25995faff34da94d30394474471dba45f5993a2efd07f5fb8c15cfdf7b3efa7c89d6796c66323938a1c31b3b89bd7578bef7c4297c6a9b68811f00aa89975

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_edq1i5f3.bn5.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/1356-64-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-60-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-59-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-61-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-65-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-68-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-62-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-58-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-57-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-56-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-63-0x0000024123570000-0x0000024123590000-memory.dmp

          Filesize

          128KB

        • memory/1356-66-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1356-67-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/1492-11-0x0000027952810000-0x0000027952832000-memory.dmp

          Filesize

          136KB

        • memory/1492-0-0x00007FF9736E3000-0x00007FF9736E5000-memory.dmp

          Filesize

          8KB

        • memory/1492-1-0x00007FF9736E0000-0x00007FF9741A1000-memory.dmp

          Filesize

          10.8MB

        • memory/1492-15-0x00007FF9736E0000-0x00007FF9741A1000-memory.dmp

          Filesize

          10.8MB

        • memory/1492-12-0x00007FF9736E0000-0x00007FF9741A1000-memory.dmp

          Filesize

          10.8MB

        • memory/1596-38-0x00000161AAF20000-0x00000161AAFD5000-memory.dmp

          Filesize

          724KB

        • memory/1596-42-0x00000161AB190000-0x00000161AB1AA000-memory.dmp

          Filesize

          104KB

        • memory/1596-37-0x00000161AAF00000-0x00000161AAF1C000-memory.dmp

          Filesize

          112KB

        • memory/1596-39-0x00000161AAFE0000-0x00000161AAFEA000-memory.dmp

          Filesize

          40KB

        • memory/1596-40-0x00000161AB150000-0x00000161AB16C000-memory.dmp

          Filesize

          112KB

        • memory/1596-41-0x00000161AB130000-0x00000161AB13A000-memory.dmp

          Filesize

          40KB

        • memory/1596-43-0x00000161AB140000-0x00000161AB148000-memory.dmp

          Filesize

          32KB

        • memory/1596-45-0x00000161AB180000-0x00000161AB18A000-memory.dmp

          Filesize

          40KB

        • memory/1596-44-0x00000161AB170000-0x00000161AB176000-memory.dmp

          Filesize

          24KB

        • memory/4320-55-0x0000000140000000-0x000000014000E000-memory.dmp

          Filesize

          56KB

        • memory/4320-49-0x0000000140000000-0x000000014000E000-memory.dmp

          Filesize

          56KB

        • memory/4320-52-0x0000000140000000-0x000000014000E000-memory.dmp

          Filesize

          56KB

        • memory/4320-51-0x0000000140000000-0x000000014000E000-memory.dmp

          Filesize

          56KB

        • memory/4320-50-0x0000000140000000-0x000000014000E000-memory.dmp

          Filesize

          56KB

        • memory/4320-48-0x0000000140000000-0x000000014000E000-memory.dmp

          Filesize

          56KB