Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-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 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 10 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 36 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:2068
    • C:\Users\Admin\AppData\Local\Temp\4080b8a70da9f1a203e703a8a83061d0_NEAS.exe
      "C:\Users\Admin\AppData\Local\Temp\4080b8a70da9f1a203e703a8a83061d0_NEAS.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:93608
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\EJXWJ.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:93784
        • 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:93856
      • 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:93892
        • 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:30444
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:30680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    308KB

    MD5

    9db5a51d896630a70cd9d3afa269a1cf

    SHA1

    653473b23a30158ebf47210d508130d473499a19

    SHA256

    9e00d367e685680840395c6d2e7a40722426b5facccffc5c21429c9aee9d6f15

    SHA512

    8623b65aee44872daf87e0082e751c2338dde489ac87eb2a755a1f1414d101f74e5d71ae6f538ba8816cb3df8ac513697d5f4cdb40d470a088b5fc092f2a7619

  • memory/2068-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2068-3-0x00000000003C0000-0x00000000003C1000-memory.dmp

    Filesize

    4KB

  • memory/30444-147849-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/30680-147850-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/30680-147836-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/93608-73925-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/93608-73924-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/93608-73923-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/93608-73922-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/93608-107959-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/93608-73921-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/93608-147843-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/93608-73918-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/93608-73916-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/93892-73965-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB