Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    08/05/2024, 15:54

General

  • Target

    lpk.dll

  • Size

    42KB

  • MD5

    4d691ae646b320e04bc2f5db3c245eb4

  • SHA1

    e55533b8f117ed5cf0248f633c0e7f69d5226df6

  • SHA256

    ddf7073e755dd661565e8eb7b892372dc48a55fde09b1f07cda6e47ce7f8d650

  • SHA512

    39f83db56c34c7a7f6d8dab0d2b073447276cb94dfd52c678fbd7a858c33de490fb1249d8d8c55114494fd1f01d07ca43defa210cc6926159c3a51e0f6992699

  • SSDEEP

    768:ZojY9PqwzZNfYoMQxcttCIl1GRPKjECdVojY9P9:smlXPgtZTxECdAmF

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Drops file in System32 directory 4 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\lpk.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\lpk.dll,#1
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3012
      • C:\Users\Admin\AppData\Local\Temp\hrl17F4.tmp
        C:\Users\Admin\AppData\Local\Temp\hrl17F4.tmp
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\hrl17F4.tmp > nul
          4⤵
            PID:2616
    • C:\Windows\SysWOW64\vitrwm.exe
      C:\Windows\SysWOW64\vitrwm.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      PID:1940

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          • \Users\Admin\AppData\Local\Temp\hrl17F4.tmp

            Filesize

            34KB

            MD5

            2d53ee91ed80e8a5a0134a7b7bc8097c

            SHA1

            a8df996004f0bae739b8d1a15a8fcc1d868d34e2

            SHA256

            88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

            SHA512

            ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

          • \Windows\SysWOW64\hra33.dll

            Filesize

            7KB

            MD5

            7147ff24579a477a1a34696926e573f1

            SHA1

            9127ea8d813ecd5788b3f97777931ec79b7760e9

            SHA256

            fd08dcb016611316c849d48312ba6dc7d4de75d1a81c1d475a13bb5a1ba07267

            SHA512

            077b68376679c30d2dbae460ed59f5131c177bdd7574af1c2660ed97ae242b1401816d012af321c278be065b49bc9eab395e008b1b9a2447aa27b694bbed1d5d