Analysis

  • max time kernel
    120s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    20-12-2024 05:05

General

  • Target

    61c06fcbc07d0c02d9bf6333cb1ea5553e0d8033f794c26ec5df5d487b9a0035N.exe

  • Size

    90KB

  • MD5

    97472703edfa4ccefcd6070fa55f46e0

  • SHA1

    1bfad6e321a18c29c5e69260a69ad60b61551719

  • SHA256

    61c06fcbc07d0c02d9bf6333cb1ea5553e0d8033f794c26ec5df5d487b9a0035

  • SHA512

    80fbd71eab2646bb175888ac02384a0cb68a235b2c86c31e68aa9640d2d3dc8c45e9fd98c663ef87989f55c8b89dc6132b19f8f8f1d3d66cfbde4782ac59cd76

  • 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 family
  • ModiLoader Second Stage 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 24 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61c06fcbc07d0c02d9bf6333cb1ea5553e0d8033f794c26ec5df5d487b9a0035N.exe
    "C:\Users\Admin\AppData\Local\Temp\61c06fcbc07d0c02d9bf6333cb1ea5553e0d8033f794c26ec5df5d487b9a0035N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\AppData\Local\Temp\61c06fcbc07d0c02d9bf6333cb1ea5553e0d8033f794c26ec5df5d487b9a0035N.exe
      "C:\Users\Admin\AppData\Local\Temp\61c06fcbc07d0c02d9bf6333cb1ea5553e0d8033f794c26ec5df5d487b9a0035N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2792
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\BYCVT.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1460
        • 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
          • System Location Discovery: System Language Discovery
          PID:2744
      • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2364
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:744
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\BYCVT.bat

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    bb98daceb94a4bf4a6cc62b573310880

    SHA1

    2e4a3e98fe435b9c69129e4375fa45dcafddba36

    SHA256

    3c906ddc9a03178aef2ba765e4a96c04c53182417726de0aed4d96423fd0196f

    SHA512

    92e4eda9dffdad858450bb436f25dd8ba90466aaa98e41225230479d0d6f696e76ddcb71f9d7351909d6fe470287de578225f1d559b2cfae47343b7961ac33b0

  • memory/744-264-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1412-265-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1412-253-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2240-72-0x00000000004D0000-0x00000000004D1000-memory.dmp

    Filesize

    4KB

  • memory/2240-17-0x00000000001E0000-0x00000000001E1000-memory.dmp

    Filesize

    4KB

  • memory/2240-83-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2240-81-0x00000000004F0000-0x00000000004F2000-memory.dmp

    Filesize

    8KB

  • memory/2240-4-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2240-103-0x00000000023C0000-0x0000000002413000-memory.dmp

    Filesize

    332KB

  • memory/2240-7-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/2240-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/2240-24-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2240-93-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2240-106-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2240-86-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2240-30-0x0000000000280000-0x0000000000281000-memory.dmp

    Filesize

    4KB

  • memory/2240-42-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/2240-80-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2240-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2240-62-0x00000000003E0000-0x00000000003E1000-memory.dmp

    Filesize

    4KB

  • memory/2364-153-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2364-256-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2364-210-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2364-174-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2364-185-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB

  • memory/2364-164-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2364-161-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2792-151-0x00000000026F0000-0x0000000002743000-memory.dmp

    Filesize

    332KB

  • memory/2792-108-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2792-158-0x00000000026F0000-0x0000000002743000-memory.dmp

    Filesize

    332KB

  • memory/2792-159-0x00000000026F0000-0x0000000002743000-memory.dmp

    Filesize

    332KB

  • memory/2792-150-0x00000000026F0000-0x0000000002743000-memory.dmp

    Filesize

    332KB

  • memory/2792-94-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2792-109-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2792-156-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2792-98-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2792-111-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2792-96-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2792-261-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2792-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2792-104-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB