Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-06-2024 21:38

General

  • Target

    53d4a92fca904cf2a5c552c89ce360de3c50114b6c965064e9d4355e3fbeb717.exe

  • Size

    90KB

  • MD5

    5cc16139cc5ba84ce6503fb47e469642

  • SHA1

    264eeda8bfd72ab6842175b03ded3ed0cdf03dc5

  • SHA256

    53d4a92fca904cf2a5c552c89ce360de3c50114b6c965064e9d4355e3fbeb717

  • SHA512

    f32e0fbe4e73582c7832fc0360935b6d5cb55fb4feec6b3bbd21d46e1447f66d27ed9c0be3229c03d3df5946d89e161b06e89b93be3f5408e722b784e650d9c6

  • 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.

  • Detects Windows executables referencing non-Windows User-Agents 4 IoCs
  • ModiLoader Second Stage 4 IoCs
  • UPX dump on OEP (original entry point) 19 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 20 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\53d4a92fca904cf2a5c552c89ce360de3c50114b6c965064e9d4355e3fbeb717.exe
    "C:\Users\Admin\AppData\Local\Temp\53d4a92fca904cf2a5c552c89ce360de3c50114b6c965064e9d4355e3fbeb717.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3364
    • C:\Users\Admin\AppData\Local\Temp\53d4a92fca904cf2a5c552c89ce360de3c50114b6c965064e9d4355e3fbeb717.exe
      "C:\Users\Admin\AppData\Local\Temp\53d4a92fca904cf2a5c552c89ce360de3c50114b6c965064e9d4355e3fbeb717.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1580
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FQVRG.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:944
        • 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:3220
      • 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:3188
        • 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:2392
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:1960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    379d6a0bff4e4c3ac5f14070c6663401

    SHA1

    070e3e51fc31e6de889f2859c4ee30241678bbcd

    SHA256

    a6817be4a331579d4131f71137de165992d1e09de14942b6dc3e3c113067865d

    SHA512

    13dc3511fa207b1a2e73edae76278d1f0c505c276da9b339f9e77a72a95a832a567ed545e36c2267fbb2e9cee911ede2cc1b31c3f85da33a17bd08dc940ded1f

  • memory/1580-12-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1580-3-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1580-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1580-59-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1580-58-0x0000000000410000-0x00000000004D9000-memory.dmp

    Filesize

    804KB

  • memory/1960-55-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1960-44-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1960-61-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1960-57-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1960-53-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1960-56-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2392-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2392-52-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2392-50-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3188-47-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3188-45-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3188-35-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3364-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3364-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

    Filesize

    8KB

  • memory/3364-5-0x0000000002A40000-0x0000000002A42000-memory.dmp

    Filesize

    8KB

  • memory/3364-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

    Filesize

    8KB

  • memory/3364-7-0x0000000002A60000-0x0000000002A62000-memory.dmp

    Filesize

    8KB

  • memory/3364-11-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB