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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 17:57

General

  • Target

    Bad Rabit.exe

  • Size

    431KB

  • MD5

    fbbdc39af1139aebba4da004475e8839

  • SHA1

    de5c8d858e6e41da715dca1c019df0bfb92d32c0

  • SHA256

    630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da

  • SHA512

    74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87

  • SSDEEP

    12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR63:vT56NbqWRwZaEr3yt2O3XR63

Malware Config

Signatures

  • BadRabbit

    Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

  • Mimikatz

    mimikatz is an open source tool to dump credentials on Windows.

  • mimikatz is an open source tool to dump credentials on Windows 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 5 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bad Rabit.exe
    "C:\Users\Admin\AppData\Local\Temp\Bad Rabit.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2456
      • C:\Windows\SysWOW64\cmd.exe
        /c schtasks /Delete /F /TN rhaegal
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3744
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Delete /F /TN rhaegal
          4⤵
            PID:3568
        • C:\Windows\SysWOW64\cmd.exe
          /c schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 1853777125 && exit"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2044
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 1853777125 && exit"
            4⤵
            • Creates scheduled task(s)
            PID:2192
        • C:\Windows\SysWOW64\cmd.exe
          /c schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 18:16:00
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:884
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 18:16:00
            4⤵
            • Creates scheduled task(s)
            PID:3260
        • C:\Windows\3AE6.tmp
          "C:\Windows\3AE6.tmp" \\.\pipe\{27DD3E15-5A7A-48B2-B3F5-C1A35AF4AB60}
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4244

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\3AE6.tmp

      Filesize

      60KB

      MD5

      347ac3b6b791054de3e5720a7144a977

      SHA1

      413eba3973a15c1a6429d9f170f3e8287f98c21c

      SHA256

      301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

      SHA512

      9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

    • C:\Windows\infpub.dat

      Filesize

      401KB

      MD5

      1d724f95c61f1055f0d02c2154bbccd3

      SHA1

      79116fe99f2b421c52ef64097f0f39b815b20907

      SHA256

      579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648

      SHA512

      f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113

    • memory/2456-3-0x0000000002A40000-0x0000000002AA8000-memory.dmp

      Filesize

      416KB

    • memory/2456-11-0x0000000002A40000-0x0000000002AA8000-memory.dmp

      Filesize

      416KB

    • memory/2456-14-0x0000000002A40000-0x0000000002AA8000-memory.dmp

      Filesize

      416KB