Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11/04/2024, 02:46

General

  • Target

    caa2c19569b515c6809e7a13941ddac2f42e0112bf5d730e81a38b4e29703c27.exe

  • Size

    90KB

  • MD5

    f80d71e84a2069e99f61ad7fd83eacef

  • SHA1

    b4f4d6e0bd00d56654678342a518e6b96469e32a

  • SHA256

    caa2c19569b515c6809e7a13941ddac2f42e0112bf5d730e81a38b4e29703c27

  • SHA512

    849e92a8d1cc6dd31116dad212d76a7905e1294ae8e7a9d19c5df7ab6655ad4aa9df49f2fc305d20dae9fd9ca8985a61e61149c76ff47b13bb5bde86354ffee6

  • 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 2 IoCs
  • ModiLoader Second Stage 2 IoCs
  • UPX dump on OEP (original entry point) 27 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 28 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\caa2c19569b515c6809e7a13941ddac2f42e0112bf5d730e81a38b4e29703c27.exe
    "C:\Users\Admin\AppData\Local\Temp\caa2c19569b515c6809e7a13941ddac2f42e0112bf5d730e81a38b4e29703c27.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Users\Admin\AppData\Local\Temp\caa2c19569b515c6809e7a13941ddac2f42e0112bf5d730e81a38b4e29703c27.exe
      "C:\Users\Admin\AppData\Local\Temp\caa2c19569b515c6809e7a13941ddac2f42e0112bf5d730e81a38b4e29703c27.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2956
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\TBPOA.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1724
        • 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:1924
      • 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:1228
        • 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:2340
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:1512

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          145B

          MD5

          4eb61ec7816c34ec8c125acadc57ec1b

          SHA1

          b0015cc865c0bb1a027be663027d3829401a31cc

          SHA256

          08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

          SHA512

          f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

          Filesize

          90KB

          MD5

          02fc11d7af47d837449924eb48759160

          SHA1

          164c6ba24ee3a0a329c9b45436b536f16df6a1cf

          SHA256

          9e9f8dbc18edeca1f944aafcd096fa23cee52fa0c9605c961c57b83fee46000d

          SHA512

          c1fa4a6ac6f073b28f29f98f55e1f2fdc8a82601bda034254dfc65956e7249b63c2139d72c9839c752469025b0d94cb47e2d92d5ed9473bf1cf99cdbbfcd2787

        • memory/1228-181-0x00000000002B0000-0x00000000002B1000-memory.dmp

          Filesize

          4KB

        • memory/1228-245-0x00000000003E0000-0x00000000003E2000-memory.dmp

          Filesize

          8KB

        • memory/1228-284-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/1228-152-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/1228-274-0x00000000004E0000-0x00000000004E2000-memory.dmp

          Filesize

          8KB

        • memory/1228-261-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/1228-249-0x0000000000460000-0x0000000000462000-memory.dmp

          Filesize

          8KB

        • memory/1228-251-0x0000000000470000-0x0000000000472000-memory.dmp

          Filesize

          8KB

        • memory/1228-247-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1228-157-0x0000000000270000-0x0000000000271000-memory.dmp

          Filesize

          4KB

        • memory/1228-234-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/1228-220-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/1228-204-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/1228-167-0x0000000000290000-0x0000000000291000-memory.dmp

          Filesize

          4KB

        • memory/1228-173-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/1512-291-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1512-281-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1512-298-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2340-295-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2924-82-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/2924-60-0x0000000000350000-0x0000000000351000-memory.dmp

          Filesize

          4KB

        • memory/2924-3-0x0000000000230000-0x0000000000231000-memory.dmp

          Filesize

          4KB

        • memory/2924-108-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/2924-5-0x0000000000230000-0x0000000000231000-memory.dmp

          Filesize

          4KB

        • memory/2924-15-0x0000000000250000-0x0000000000251000-memory.dmp

          Filesize

          4KB

        • memory/2924-28-0x0000000000270000-0x0000000000271000-memory.dmp

          Filesize

          4KB

        • memory/2924-27-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/2924-40-0x0000000000310000-0x0000000000311000-memory.dmp

          Filesize

          4KB

        • memory/2924-70-0x0000000000370000-0x0000000000371000-memory.dmp

          Filesize

          4KB

        • memory/2924-79-0x0000000000390000-0x0000000000392000-memory.dmp

          Filesize

          8KB

        • memory/2924-78-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/2924-81-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/2924-0-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/2924-93-0x00000000003D0000-0x00000000003D2000-memory.dmp

          Filesize

          8KB

        • memory/2924-87-0x00000000003A0000-0x00000000003A2000-memory.dmp

          Filesize

          8KB

        • memory/2924-85-0x0000000000400000-0x0000000000453000-memory.dmp

          Filesize

          332KB

        • memory/2956-151-0x0000000002B70000-0x0000000002BC3000-memory.dmp

          Filesize

          332KB

        • memory/2956-171-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-96-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-98-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2956-104-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-94-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-150-0x0000000002B70000-0x0000000002BC3000-memory.dmp

          Filesize

          332KB

        • memory/2956-102-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-288-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-105-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-110-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2956-107-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB