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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 14:02

General

  • Target

    b8e79f92675f303e55c493932056f090.exe

  • Size

    127KB

  • MD5

    b8e79f92675f303e55c493932056f090

  • SHA1

    e71cc63e2dcb2c07d3a1687679a1b46e0044a23b

  • SHA256

    238a52b29785c4a9706a591fafd362c6688b5c09da2d056eb183a3ff593b13d6

  • SHA512

    c7857cf83c2f5f73a7dc3323bbdd652a37716d88351014f53abf65062b80d8d42840cab9a6164200e70ee3b5e8c7af8d2413cf92bd8e6f82584843d86b9d46cc

  • SSDEEP

    3072:5wbT6fueklnv/UyPl03CLYRr24OjiX1ce6ndCnMEoD:X7El03CLYRrijFnQgD

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Kills process with taskkill 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8e79f92675f303e55c493932056f090.exe
    "C:\Users\Admin\AppData\Local\Temp\b8e79f92675f303e55c493932056f090.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c taskkill /f /im rfwmain.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rfwmain.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4864
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c taskkill /f /im rfwsrv.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3268
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rfwsrv.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2148
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c taskkill /f /im rfwstub.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2720
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rfwstub.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2536
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c taskkill /f /im rfwproxy.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1780
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rfwproxy.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2420
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\B8E79F~1.EXE > nul
      2⤵
        PID:1452
    • C:\Windows\SysWOW64\dconfig.exe
      C:\Windows\SysWOW64\dconfig.exe
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4088
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c taskkill /f /im rfwmain.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4048
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfwmain.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4584
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c taskkill /f /im rfwsrv.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1320
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfwsrv.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4992
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c taskkill /f /im rfwstub.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1764
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfwstub.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3808
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c taskkill /f /im rfwproxy.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1532
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfwproxy.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4420

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\dconfig.exe

      Filesize

      127KB

      MD5

      b8e79f92675f303e55c493932056f090

      SHA1

      e71cc63e2dcb2c07d3a1687679a1b46e0044a23b

      SHA256

      238a52b29785c4a9706a591fafd362c6688b5c09da2d056eb183a3ff593b13d6

      SHA512

      c7857cf83c2f5f73a7dc3323bbdd652a37716d88351014f53abf65062b80d8d42840cab9a6164200e70ee3b5e8c7af8d2413cf92bd8e6f82584843d86b9d46cc

    • memory/4088-11-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-13-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-6-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-7-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-8-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-9-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-19-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-10-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-12-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-18-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-14-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-15-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-16-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4088-17-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4908-0-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB

    • memory/4908-5-0x0000000000400000-0x0000000000425500-memory.dmp

      Filesize

      149KB