Analysis

  • max time kernel
    152s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-05-2024 13:54

General

  • Target

    cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe

  • Size

    90KB

  • MD5

    cdf5fd113dde40d22ae10c54022558e0

  • SHA1

    b71056a270aa0c193c962768114e6b959aa69177

  • SHA256

    bb7b31ac0a920d74271e910ff619ad0d04867be4e1ff6b4643c0bb8513be3f7b

  • SHA512

    285731c8e914819659d88db2dd230f727e808176d032177869ca3fdec3285c0596b00c7e3dda8e50da1a620085d076cfa81d3ae51b1b70f15731f29209e80930

  • SSDEEP

    1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • ModiLoader Second Stage 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 23 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 59 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe
    "C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe
      "C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WDEBK.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4716
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
          4⤵
          • Adds Run key to start application
          PID:4568
      • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3988
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4812
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:4980
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4160 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4104

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\WDEBK.txt

      Filesize

      145B

      MD5

      4eb61ec7816c34ec8c125acadc57ec1b

      SHA1

      b0015cc865c0bb1a027be663027d3829401a31cc

      SHA256

      08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

      SHA512

      f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

    • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

      Filesize

      90KB

      MD5

      807995eab5fa7467e7a65da6a48d3509

      SHA1

      23a7c07f4b6e2ac879eb4104e73257e1556f9cb9

      SHA256

      7764d2cee5b749537e727afd2cdb00bba87e0e97b37e8c8969fa867fd6e40645

      SHA512

      b9bb02bec2f0a929fd33d612b2d6c7515a6aa384036c37dab8ee46832e8cee378ef630d856635666bd75667f0cdcdedd77a333cabc07908d8118dc9b2183eb4f

    • memory/2232-21-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2232-63-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2232-42-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2232-37-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2232-7-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2232-9-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2232-11-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2232-61-0x0000000000410000-0x00000000004D9000-memory.dmp

      Filesize

      804KB

    • memory/2828-14-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/2828-6-0x0000000002330000-0x0000000002332000-memory.dmp

      Filesize

      8KB

    • memory/2828-0-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/2828-5-0x0000000002300000-0x0000000002302000-memory.dmp

      Filesize

      8KB

    • memory/2828-4-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/2828-1-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/3988-38-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/3988-53-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/3988-44-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/3988-43-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/4812-64-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/4980-47-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4980-57-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4980-59-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4980-58-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4980-60-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4980-65-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB