Analysis

  • max time kernel
    296s
  • max time network
    457s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 23:56

General

  • Target

    MirServer/LogServer/lpk.dll

  • Size

    42KB

  • MD5

    4d691ae646b320e04bc2f5db3c245eb4

  • SHA1

    e55533b8f117ed5cf0248f633c0e7f69d5226df6

  • SHA256

    ddf7073e755dd661565e8eb7b892372dc48a55fde09b1f07cda6e47ce7f8d650

  • SHA512

    39f83db56c34c7a7f6d8dab0d2b073447276cb94dfd52c678fbd7a858c33de490fb1249d8d8c55114494fd1f01d07ca43defa210cc6926159c3a51e0f6992699

  • SSDEEP

    768:ZojY9PqwzZNfYoMQxcttCIl1GRPKjECdVojY9P9:smlXPgtZTxECdAmF

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\MirServer\LogServer\lpk.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4788
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\MirServer\LogServer\lpk.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2420
      • C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp
        C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4048
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp > nul
          4⤵
            PID:1680
    • C:\Windows\SysWOW64\vahxaq.exe
      C:\Windows\SysWOW64\vahxaq.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:2740

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp

      Filesize

      34KB

      MD5

      2d53ee91ed80e8a5a0134a7b7bc8097c

      SHA1

      a8df996004f0bae739b8d1a15a8fcc1d868d34e2

      SHA256

      88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

      SHA512

      ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

    • C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp

      Filesize

      34KB

      MD5

      2d53ee91ed80e8a5a0134a7b7bc8097c

      SHA1

      a8df996004f0bae739b8d1a15a8fcc1d868d34e2

      SHA256

      88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

      SHA512

      ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

    • C:\Windows\SysWOW64\hra33.dll

      Filesize

      42KB

      MD5

      4d691ae646b320e04bc2f5db3c245eb4

      SHA1

      e55533b8f117ed5cf0248f633c0e7f69d5226df6

      SHA256

      ddf7073e755dd661565e8eb7b892372dc48a55fde09b1f07cda6e47ce7f8d650

      SHA512

      39f83db56c34c7a7f6d8dab0d2b073447276cb94dfd52c678fbd7a858c33de490fb1249d8d8c55114494fd1f01d07ca43defa210cc6926159c3a51e0f6992699

    • C:\Windows\SysWOW64\vahxaq.exe

      Filesize

      34KB

      MD5

      2d53ee91ed80e8a5a0134a7b7bc8097c

      SHA1

      a8df996004f0bae739b8d1a15a8fcc1d868d34e2

      SHA256

      88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

      SHA512

      ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

    • C:\Windows\SysWOW64\vahxaq.exe

      Filesize

      34KB

      MD5

      2d53ee91ed80e8a5a0134a7b7bc8097c

      SHA1

      a8df996004f0bae739b8d1a15a8fcc1d868d34e2

      SHA256

      88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

      SHA512

      ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

    • memory/1680-139-0x0000000000000000-mapping.dmp

    • memory/2420-132-0x0000000000000000-mapping.dmp

    • memory/4048-133-0x0000000000000000-mapping.dmp