Analysis

  • max time kernel
    93s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/08/2024, 15:01

General

  • Target
    WaveInstaller.exe
  • Size 55.9MB
  • Sample240804-sd558ssdlh
  • SHA256 a0fe8a8ecab5d9d7df5a364a95352e1d861c8ca851c4339b65aa4841b3619617
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • GoLang User-Agent 3 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2912
      • C:\Windows\SysWOW64\openwith.exe
        "C:\Windows\system32\openwith.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:4764
    • C:\Users\Admin\AppData\Local\Temp\WaveInstaller.exe
      "C:\Users\Admin\AppData\Local\Temp\WaveInstaller.exe"
      1⤵
      • Maps connected drives based on registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3036
      • C:\Windows\System32\Wbem\wmic.exe
        wmic path win32_VideoController get name
        2⤵
        • Detects videocard installed
        • Suspicious use of AdjustPrivilegeToken
        PID:3248
      • C:\Windows\system32\tasklist.exe
        tasklist
        2⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:1200
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath \"C:\ProgramData\";" powershell -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath \"C:\Users\Admin\AppData\Local\Temp\WaveInstaller.exe\""
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2000
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\WaveInstaller.exe
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2660
      • C:\Windows\System32\Wbem\wmic.exe
        wmic csproduct get uuid
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4584
      • C:\ProgramData\driver1.exe
        C:\ProgramData\driver1.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2232
        • C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
          C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
          3⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2156
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 452
            4⤵
            • Program crash
            PID:4640
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 444
            4⤵
            • Program crash
            PID:4296
      • C:\Windows\system32\schtasks.exe
        schtasks /create /tn WinDriver /tr C:\ProgramData\Microsoft\WinDriver.exe /sc onstart /ru SYSTEM
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1600
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2156 -ip 2156
      1⤵
        PID:2936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2156 -ip 2156
        1⤵
          PID:3768

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              driver1.exe

              • Path C:\ProgramData\driver1.exe
              • Size 7.3MB
              • SHA256 ce3b888419f9e46029d630e56e15e64eb28b9f92652a1acf477a87a5aebe3f48
              • MD5 SHA1 SHA512 SSDEEP

              powershell.exe.log

              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
              • Size 2KB
              • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
              • MD5 SHA1 SHA512

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 119B
              • SHA256 c95e085f42475222cc2b9f826603fefdc1a07c7dd09fc6b34b9b653bd9e941c2
              • MD5 SHA1 SHA512

              __PSScriptPolicyTest_amkq0aht.btn.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_amkq0aht.btn.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512

              memory/2000-0-0x000001ED080D0000-0x000001ED080F2000-memory.dmp

              memory/2156-42-0x0000000003710000-0x0000000003B10000-memory.dmp

              memory/2156-41-0x0000000000540000-0x00000000005BE000-memory.dmp

              memory/2156-39-0x0000000000540000-0x00000000005BE000-memory.dmp

              memory/2156-43-0x0000000003710000-0x0000000003B10000-memory.dmp

              memory/2156-44-0x00007FFA9DFB0000-0x00007FFA9E1A5000-memory.dmp

              memory/2156-46-0x0000000077370000-0x0000000077585000-memory.dmp

              memory/2232-40-0x00007FF79A550000-0x00007FF79AD02000-memory.dmp

              memory/4764-47-0x0000000000FB0000-0x0000000000FB9000-memory.dmp

              memory/4764-49-0x0000000002DD0000-0x00000000031D0000-memory.dmp

              memory/4764-52-0x0000000077370000-0x0000000077585000-memory.dmp

              memory/4764-50-0x00007FFA9DFB0000-0x00007FFA9E1A5000-memory.dmp