Resubmissions

22-09-2024 14:26

240922-rrxkkstfpq 10

Analysis

  • max time kernel
    42s
  • max time network
    44s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-09-2024 14:26

General

  • Target

    BadRabbit.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
  • Event Triggered Execution: Accessibility Features 1 TTPs

    Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of FindShellTrayWindow 38 IoCs
  • Suspicious use of SendNotifyMessage 38 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BadRabbit.exe
    "C:\Users\Admin\AppData\Local\Temp\BadRabbit.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2372
    • 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
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2248
      • C:\Windows\SysWOW64\cmd.exe
        /c schtasks /Delete /F /TN rhaegal
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3016
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Delete /F /TN rhaegal
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3760
      • 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 1665298700 && exit"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5036
        • 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 1665298700 && exit"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2120
      • 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 14:44:00
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5096
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 14:44:00
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2656
      • C:\Windows\7ACD.tmp
        "C:\Windows\7ACD.tmp" \\.\pipe\{BE78C860-A8FD-4F27-B622-9F5EDC45B2E5}
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4660
  • C:\Windows\system32\osk.exe
    "C:\Windows\system32\osk.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:1064
  • C:\Windows\system32\launchtm.exe
    launchtm.exe /2
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4800
    • C:\Windows\System32\Taskmgr.exe
      "C:\Windows\System32\Taskmgr.exe" /2
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3208
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x33c 0x38c
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\7ACD.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/2248-11-0x0000000002D90000-0x0000000002DF8000-memory.dmp

    Filesize

    416KB

  • memory/2248-3-0x0000000002D90000-0x0000000002DF8000-memory.dmp

    Filesize

    416KB

  • memory/2248-14-0x0000000002D90000-0x0000000002DF8000-memory.dmp

    Filesize

    416KB

  • memory/3208-48-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-46-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-47-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-59-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-58-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-57-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-56-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-55-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-54-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB

  • memory/3208-53-0x000002792B840000-0x000002792B841000-memory.dmp

    Filesize

    4KB