Analysis

  • max time kernel
    109s
  • max time network
    111s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/07/2024, 22:13

Errors

Reason
Machine shutdown

General

  • Target

    266aedca0746a9606080c1b35371bc0e_JaffaCakes118.exe

  • Size

    14KB

  • MD5

    266aedca0746a9606080c1b35371bc0e

  • SHA1

    386b838975dee3a385747b8b9def7ffaf3818c35

  • SHA256

    86211d3380f3c57727fbd0598b519e73bca251977cb4730188d282bf57f2b8dd

  • SHA512

    a311d92d7159cc6b0689bffcd5bc75dc061980225fd145ccb71e063ed610a3779b17034d8cf03311f4f47d297ef3711ec3191613b9141a442a1b87a95f150228

  • SSDEEP

    384:/PJkTWwGy1PZsxPCStZx42ymDJ8QZ+2P6vGDB:/P1wt1PZsxHZhymun

Score
7/10

Malware Config

Signatures

  • UPX packed file 4 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\266aedca0746a9606080c1b35371bc0e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\266aedca0746a9606080c1b35371bc0e_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4052
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c cmd.exe /c echo olha > C:\Users\Admin\AppData\Local\Temp\blomaisatualmentee.txt
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4896
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c echo olha
        3⤵
          PID:1476
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c cmd.exe /c ren C:\Windows\System32\letsplay1 msnmsgsr.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3852
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c ren C:\Windows\System32\letsplay1 msnmsgsr.exe
          3⤵
            PID:3188
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c cmd.exe /c ren C:\Windows\System32\letsplay2 jumperr.exe
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4976
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c ren C:\Windows\System32\letsplay2 jumperr.exe
            3⤵
              PID:4484
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c start C:\Windows\System32\jumperr.exe /nogui C:\systemX86.txt
            2⤵
              PID:4568
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c start C:\Windows\System32\msnmsgsr.exe
              2⤵
                PID:3044
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c reg add "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run" /v MsnMsgr /t REG_SZ /d "C:\Windows\system32\msnmsgsr.exe"
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:3820
                • C:\Windows\SysWOW64\reg.exe
                  reg add "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run" /v MsnMsgr /t REG_SZ /d "C:\Windows\system32\msnmsgsr.exe"
                  3⤵
                  • Adds Run key to start application
                  PID:2368
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c cmd /c "shutdown -r -f -t 10 -c "Erro Interno do Windows"
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:1740
                • C:\Windows\SysWOW64\cmd.exe
                  cmd /c "shutdown -r -f -t 10 -c "Erro Interno do Windows"
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:548
                  • C:\Windows\SysWOW64\shutdown.exe
                    shutdown -r -f -t 10 -c "Erro Interno do Windows
                    4⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2732
            • C:\Windows\system32\LogonUI.exe
              "LogonUI.exe" /flags:0x4 /state0:0xa394f055 /state1:0x41c64e6d
              1⤵
              • Modifies data under HKEY_USERS
              • Suspicious use of SetWindowsHookEx
              PID:1316

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • memory/4052-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/4052-2-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/4052-8-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/4052-11-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB