Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-05-2024 00:41

General

  • Target

    960bea688cbe2f6decb6efa664efb8b1c32f34e3c8b8added1167a9fdf6fc3a7.exe

  • Size

    90KB

  • MD5

    c3e2153caa82f1662f0ee4fce86ec9ad

  • SHA1

    dc185493143192a39a231ef5bea22632bca853b6

  • SHA256

    960bea688cbe2f6decb6efa664efb8b1c32f34e3c8b8added1167a9fdf6fc3a7

  • SHA512

    9acc96a17b95c2bcd3b50e6b0bc52a1768ff5083b8c9be63cbd83e372f1620fcc2078b19f13a6d15edec5419edadd57271cc617c7cafb8b99a98b71c2d067487

  • 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 5 IoCs
  • ModiLoader Second Stage 5 IoCs
  • UPX dump on OEP (original entry point) 18 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 18 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\960bea688cbe2f6decb6efa664efb8b1c32f34e3c8b8added1167a9fdf6fc3a7.exe
    "C:\Users\Admin\AppData\Local\Temp\960bea688cbe2f6decb6efa664efb8b1c32f34e3c8b8added1167a9fdf6fc3a7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4988
    • C:\Users\Admin\AppData\Local\Temp\960bea688cbe2f6decb6efa664efb8b1c32f34e3c8b8added1167a9fdf6fc3a7.exe
      "C:\Users\Admin\AppData\Local\Temp\960bea688cbe2f6decb6efa664efb8b1c32f34e3c8b8added1167a9fdf6fc3a7.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1412
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QCAEH.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1756
        • 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:3688
      • 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:3504
        • 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:1832
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:1252

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    9fb3d8a396da7f7a9576926ecff699ff

    SHA1

    4d4b326d676bf4bdb2a9224f6fb4917a1928e5e1

    SHA256

    a776313d4d34b797e953054b04797f1eec8123dde377a193e69d5d72210e5903

    SHA512

    58d5fe6537e2053cd3417a36d20d8ce981978926989943cc3a45a6a369b49e4eef97d4463ca0dafdc8506bc580a86a8cf77270900b2510637f2b5ce9823e0b57

  • memory/1252-55-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1252-52-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1252-61-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1252-45-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1252-50-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1252-54-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1252-56-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1412-3-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1412-59-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1412-10-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1412-12-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1832-53-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1832-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3504-37-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3504-47-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4988-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4988-9-0x00000000021E0000-0x00000000021E2000-memory.dmp

    Filesize

    8KB

  • memory/4988-6-0x00000000021B0000-0x00000000021B2000-memory.dmp

    Filesize

    8KB

  • memory/4988-7-0x00000000021C0000-0x00000000021C2000-memory.dmp

    Filesize

    8KB

  • memory/4988-13-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4988-8-0x00000000021D0000-0x00000000021D2000-memory.dmp

    Filesize

    8KB