Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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 12:45

General

  • Target

    863aa7600167704c4c8f6f73118584e0_NEAS.exe

  • Size

    90KB

  • MD5

    863aa7600167704c4c8f6f73118584e0

  • SHA1

    d9ca386c22f0fb5400a8b92e94012822ec6926d0

  • SHA256

    a25d757e31be69503740505aa15e3535499d17669b104b91ab191b434f957abf

  • SHA512

    81eed09a5f4ae8f951938d2b4f67cfbd29f89aa681294ed5ccd968815c8ce3601b4f1e24872c914a7745856bde88e1f5446d93da01cb51c6dfc6cc6045350b64

  • 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 5 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 19 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\863aa7600167704c4c8f6f73118584e0_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1384
    • C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe
      "C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:396
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FRVSG.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2184
        • 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:424
      • 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:2508
        • 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:3736
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    f33ffd5009612a1d23099265cb9dab77

    SHA1

    09783b6f41c4a64fec9f6d084e1854c063d5564e

    SHA256

    a5eba13e348b4b038542a7ff9cc9f162541267db88bab6212b6de7ccf630dd62

    SHA512

    eb33b8bee119420495cb7b7978663dce8b65bebd69a22b5cb7d4b433412e76405186dc1e28fa44185cb8cc0957015a7d0cc9231fada0421d00952a2d44c48305

  • memory/396-10-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/396-3-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/396-59-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/396-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/688-53-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/688-49-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/688-43-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/688-55-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/688-54-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/688-61-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/688-51-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1384-12-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1384-8-0x00000000021E0000-0x00000000021E2000-memory.dmp

    Filesize

    8KB

  • memory/1384-6-0x00000000021D0000-0x00000000021D2000-memory.dmp

    Filesize

    8KB

  • memory/1384-5-0x00000000021C0000-0x00000000021C2000-memory.dmp

    Filesize

    8KB

  • memory/1384-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2508-36-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2508-46-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3736-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3736-52-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB