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 10:28

General

  • Target

    4080b8a70da9f1a203e703a8a83061d0_NEAS.exe

  • Size

    308KB

  • MD5

    4080b8a70da9f1a203e703a8a83061d0

  • SHA1

    b9c2612e24e7dc5eaf74760058da14657d064d3e

  • SHA256

    8b7563bd2440c86b026181c0867d0f2604d98df02c379da360411443f3a65b16

  • SHA512

    f60649556f120fce0e570fd565602ab115267d77042346b20f30bb16a601e8a09ef2a1f49764f8a67240e282e5465f80cf5eafc318f0874dfc81a818209e04fa

  • SSDEEP

    3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

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 12 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\4080b8a70da9f1a203e703a8a83061d0_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\4080b8a70da9f1a203e703a8a83061d0_NEAS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Users\Admin\AppData\Local\Temp\4080b8a70da9f1a203e703a8a83061d0_NEAS.exe
      "C:\Users\Admin\AppData\Local\Temp\4080b8a70da9f1a203e703a8a83061d0_NEAS.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4172
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JFERH.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2388
        • 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:2080
      • 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:3632
        • 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:3676
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:3156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    308KB

    MD5

    87f5becce14bfc21bd532610cdec9bdb

    SHA1

    ff954dfe2fa099a4504bc57ae80f3c346f483ca7

    SHA256

    eeb6a2bfa7a379f127044dc4b6874967532f515e61aa7830e173460978678619

    SHA512

    b388fd1d3b50447042d4cbef8936facce0d91a9c2178e47aaf0bc573fb857cba74f5a40e7d6f57c290a8bb6cb5dde8021bcfec1b3864adb59d06b84aefad4e37

  • memory/3156-56-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3156-39-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3156-44-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3156-45-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3156-49-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3156-47-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3632-36-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3632-33-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3632-48-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3676-55-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4048-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4048-4-0x00000000021E0000-0x00000000021E1000-memory.dmp

    Filesize

    4KB

  • memory/4048-3-0x00000000021C0000-0x00000000021C1000-memory.dmp

    Filesize

    4KB

  • memory/4172-11-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4172-8-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4172-54-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4172-7-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4172-5-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB