Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 16:41

General

  • Target

    df90303b419a6e98df4cf992845f0380_NEAS.exe

  • Size

    90KB

  • MD5

    df90303b419a6e98df4cf992845f0380

  • SHA1

    b93a69134b7243f89c274e538ea6e50cc625f4cc

  • SHA256

    32ff70c4f0a9d2aab2447b0a5646efb6ef674a21e3c2f349c054d1aa3e8c7c82

  • SHA512

    a7c0b997e31675538c9a8d70fbba8c36fda6b5b9daeb72b5b4d977f3cfbdd7cdb8bb2865e6c6abb5b3657e4acad13e40ab3872b2167c8f3e440e9dbfd90d820b

  • 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 17 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 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4632
    • C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe
      "C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:456
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EYCNL.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:972
        • 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:532
      • 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:4408
        • 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:4344
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:4036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    05e455195beb366fc1d556dd75e33899

    SHA1

    aaafed79613b77dc7aade548c0491f344004d3a1

    SHA256

    52b6a2c27a3f190a77146cf2f71d7e1fb6afdd340a32b22528adefee294d042e

    SHA512

    b7024566c0e51aa3c005f2a5bd62adaeddf1241d7f576a3c8479d443a9ead3e8bf5e9bf8bf34cfaa7a5f6e7ebeed72da4e636e092e741df9fdc6922110848356

  • memory/456-11-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/456-3-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/456-57-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/456-55-0x0000000000410000-0x00000000004D9000-memory.dmp

    Filesize

    804KB

  • memory/456-8-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4036-52-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4036-51-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4036-59-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4036-50-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4036-40-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4036-48-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4344-58-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4408-34-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4408-46-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4632-10-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4632-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4632-4-0x0000000002900000-0x0000000002902000-memory.dmp

    Filesize

    8KB

  • memory/4632-5-0x0000000002910000-0x0000000002912000-memory.dmp

    Filesize

    8KB

  • memory/4632-6-0x0000000002920000-0x0000000002922000-memory.dmp

    Filesize

    8KB