Analysis

  • max time kernel
    2698s
  • max time network
    2690s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 11:03

General

  • Target

    beren.exe

  • Size

    5.0MB

  • MD5

    b1ac2ea973651a70ea72597e13a10f0a

  • SHA1

    07e7cdedc54067a46b1d42cdf8a2c9050c3d3419

  • SHA256

    e2cb500c902da55ac07cbfbe30b8d1cef8781e55f0439ed601672636c3ab8c47

  • SHA512

    02b0dbc8a31ca440027a6c07d618a92bb520567ccd338c28dfcb86faa5b56c866564cf1a05b1754dcfeb252d12d76da57fd2de87804454f0ef1097431764c1f0

  • SSDEEP

    98304:9l68nO7ed9W+WzUU3a7G9kzPupfguX8WpWY/FwWCghYjuFRx20iZGZ1:9UdedpWzUmuPeghvY9wvonVsE

Malware Config

Signatures

  • xmrig

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

  • XMRig Miner payload 12 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 17 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 4 IoCs

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

  • Modifies data under HKEY_USERS 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\beren.exe
    "C:\Users\Admin\AppData\Local\Temp\beren.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    PID:1640
    • 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:2028
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5044
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
          PID:4588
      • C:\Windows\system32\powercfg.exe
        C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4520
      • C:\Windows\system32\powercfg.exe
        C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1800
      • C:\Windows\system32\powercfg.exe
        C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1388
      • C:\Windows\system32\powercfg.exe
        C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2172
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe delete "QHRAJGDI"
        2⤵
        • Launches sc.exe
        PID:1736
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe create "QHRAJGDI" binpath= "C:\ProgramData\nalfdgwigwyg\lhhsgwktkatl.exe" start= "auto"
        2⤵
        • Launches sc.exe
        PID:1160
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop eventlog
        2⤵
        • Launches sc.exe
        PID:1552
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe start "QHRAJGDI"
        2⤵
        • Launches sc.exe
        PID:2328
    • C:\ProgramData\nalfdgwigwyg\lhhsgwktkatl.exe
      C:\ProgramData\nalfdgwigwyg\lhhsgwktkatl.exe
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2368
      • 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:720
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4948
        • C:\Windows\system32\wusa.exe
          wusa /uninstall /kb:890830 /quiet /norestart
          3⤵
            PID:4432
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4956
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3496
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1248
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:5092
        • C:\Windows\system32\conhost.exe
          C:\Windows\system32\conhost.exe
          2⤵
            PID:4604
          • C:\Windows\system32\conhost.exe
            conhost.exe
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:896

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Execution

        Command and Scripting Interpreter

        1
        T1059

        PowerShell

        1
        T1059.001

        System Services

        2
        T1569

        Service Execution

        2
        T1569.002

        Persistence

        Create or Modify System Process

        2
        T1543

        Windows Service

        2
        T1543.003

        Privilege Escalation

        Create or Modify System Process

        2
        T1543

        Windows Service

        2
        T1543.003

        Defense Evasion

        Impair Defenses

        1
        T1562

        Impact

        Service Stop

        1
        T1489

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\nalfdgwigwyg\lhhsgwktkatl.exe
          Filesize

          5.0MB

          MD5

          b1ac2ea973651a70ea72597e13a10f0a

          SHA1

          07e7cdedc54067a46b1d42cdf8a2c9050c3d3419

          SHA256

          e2cb500c902da55ac07cbfbe30b8d1cef8781e55f0439ed601672636c3ab8c47

          SHA512

          02b0dbc8a31ca440027a6c07d618a92bb520567ccd338c28dfcb86faa5b56c866564cf1a05b1754dcfeb252d12d76da57fd2de87804454f0ef1097431764c1f0

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4snpqths.34f.ps1
          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/720-48-0x0000026643E60000-0x000002664407C000-memory.dmp
          Filesize

          2.1MB

        • memory/720-43-0x0000026644770000-0x0000026644778000-memory.dmp
          Filesize

          32KB

        • memory/720-45-0x00000266447B0000-0x00000266447BA000-memory.dmp
          Filesize

          40KB

        • memory/720-44-0x00000266447A0000-0x00000266447A6000-memory.dmp
          Filesize

          24KB

        • memory/720-49-0x0000026644180000-0x00000266442CE000-memory.dmp
          Filesize

          1.3MB

        • memory/720-37-0x0000026644540000-0x000002664455C000-memory.dmp
          Filesize

          112KB

        • memory/720-38-0x0000026644560000-0x0000026644615000-memory.dmp
          Filesize

          724KB

        • memory/720-39-0x00000266442F0000-0x00000266442FA000-memory.dmp
          Filesize

          40KB

        • memory/720-40-0x0000026644780000-0x000002664479C000-memory.dmp
          Filesize

          112KB

        • memory/720-41-0x0000026644760000-0x000002664476A000-memory.dmp
          Filesize

          40KB

        • memory/720-42-0x00000266447C0000-0x00000266447DA000-memory.dmp
          Filesize

          104KB

        • memory/896-69-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-58-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-74-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-75-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-73-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-72-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-71-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-61-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-62-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-66-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-67-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-59-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-65-0x00000213E7D10000-0x00000213E7D30000-memory.dmp
          Filesize

          128KB

        • memory/896-60-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-64-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-63-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-68-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/896-70-0x0000000140000000-0x0000000140848000-memory.dmp
          Filesize

          8.3MB

        • memory/2028-0-0x00007FFFB7023000-0x00007FFFB7025000-memory.dmp
          Filesize

          8KB

        • memory/2028-15-0x00007FFFB7020000-0x00007FFFB7AE1000-memory.dmp
          Filesize

          10.8MB

        • memory/2028-10-0x0000019249F00000-0x0000019249F22000-memory.dmp
          Filesize

          136KB

        • memory/2028-11-0x00007FFFB7020000-0x00007FFFB7AE1000-memory.dmp
          Filesize

          10.8MB

        • memory/2028-12-0x00007FFFB7020000-0x00007FFFB7AE1000-memory.dmp
          Filesize

          10.8MB

        • memory/4604-57-0x0000000140000000-0x000000014000E000-memory.dmp
          Filesize

          56KB

        • memory/4604-50-0x0000000140000000-0x000000014000E000-memory.dmp
          Filesize

          56KB

        • memory/4604-51-0x0000000140000000-0x000000014000E000-memory.dmp
          Filesize

          56KB

        • memory/4604-52-0x0000000140000000-0x000000014000E000-memory.dmp
          Filesize

          56KB

        • memory/4604-53-0x0000000140000000-0x000000014000E000-memory.dmp
          Filesize

          56KB

        • memory/4604-54-0x0000000140000000-0x000000014000E000-memory.dmp
          Filesize

          56KB