Analysis

  • max time kernel
    152s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/02/2023, 08:52

General

  • Target

    d1305b7e672aee7d0bd3ca8f9b7c2706536d7822249af8c925d86595d39aaacb.exe

  • Size

    209KB

  • MD5

    7ce13de5f6432204b925c56f34f70686

  • SHA1

    542c31c3907bdbf62496ed73edae98ca57c69db1

  • SHA256

    d1305b7e672aee7d0bd3ca8f9b7c2706536d7822249af8c925d86595d39aaacb

  • SHA512

    39bcaeb546f0d55d25f2608b5b6bae619fb4029edc6e89b3ce61ebf5ef96a4b131e1e53ebb7fcdafadbfef4cd615995c4a585996df5b6c8ccdb83b62e3199938

  • SSDEEP

    3072:VrM4SygTxhnOFMWAFGUYHy+j03DeZ1K6JRNMhqJZlX6q+beI2e5wzrWUDOO1:uygTrntzqjwDe31NzJrXL+2uKrWG

Malware Config

Signatures

  • Stops running service(s) 3 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 5 IoCs
  • Launches sc.exe 1 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). Likely ransomware behaviour.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1305b7e672aee7d0bd3ca8f9b7c2706536d7822249af8c925d86595d39aaacb.exe
    "C:\Users\Admin\AppData\Local\Temp\d1305b7e672aee7d0bd3ca8f9b7c2706536d7822249af8c925d86595d39aaacb.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4736
    • C:\Windows\SysWOW64\CMD.exe
      CMD /C RD %TEMP% /S/Q & MKDIR %TEMP%
      2⤵
        PID:5016
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f
        2⤵
        • Adds Run key to start application
        PID:4848
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run" /f
        2⤵
        • Adds Run key to start application
        PID:4712
      • C:\Windows\SysWOW64\CMD.exe
        CMD /C %WINDIR%\sysnative\reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4988
        • C:\Windows\system32\reg.exe
          C:\Windows\sysnative\reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /f
          3⤵
          • Adds Run key to start application
          PID:3584
      • C:\Windows\SysWOW64\sc.exe
        sc delete syshost32
        2⤵
        • Launches sc.exe
        PID:4108
      • C:\Windows\SysWOW64\reg.exe
        reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /f
        2⤵
          PID:996
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im msiexec.exe
          2⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1588
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" CMD /C DEL /F /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\*.* "
          2⤵
            PID:4784
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" CMD /C DEL /F /S /Q "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\*.* "
            2⤵
              PID:4524

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • memory/4736-132-0x0000000000400000-0x00000000004E4000-memory.dmp

                  Filesize

                  912KB

                • memory/4736-134-0x0000000000400000-0x00000000004E4000-memory.dmp

                  Filesize

                  912KB