Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 27 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\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:2892
    • C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe
      "C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1652
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\PBKBT.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2700
        • 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:2732
      • 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:1664
        • 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:1808
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:1236

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    3b5aa559afa21267381b22eca32719dc

    SHA1

    199f077e6d1f2ccdb8663a99e15473f8cf3e3073

    SHA256

    97339c3c9a1328acae1e412c4a602480a279de53b2be55603cf908aa953ae65c

    SHA512

    a44d7fe1b4706a390e98e2aff6e248fa67d1484e313bcaedd5c2bf949079195d4ea28fa6affe657c37af0dc66316498a72b24607c0108706ed32ec9b065df79c

  • memory/1236-255-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1236-269-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1652-263-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1652-154-0x0000000002D40000-0x0000000002D93000-memory.dmp

    Filesize

    332KB

  • memory/1652-140-0x0000000002D30000-0x0000000002D83000-memory.dmp

    Filesize

    332KB

  • memory/1652-109-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1652-113-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1652-111-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1652-153-0x0000000002D40000-0x0000000002D93000-memory.dmp

    Filesize

    332KB

  • memory/1652-159-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1652-95-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1652-103-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1652-101-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1652-99-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1652-97-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1664-228-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1664-162-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/1664-183-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/1664-172-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB

  • memory/1664-257-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1664-156-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1808-254-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1808-268-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2892-107-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-59-0x0000000000350000-0x0000000000351000-memory.dmp

    Filesize

    4KB

  • memory/2892-39-0x0000000000310000-0x0000000000311000-memory.dmp

    Filesize

    4KB

  • memory/2892-70-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/2892-67-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-78-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2892-79-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-80-0x00000000003D0000-0x00000000003D2000-memory.dmp

    Filesize

    8KB

  • memory/2892-82-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-83-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-84-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-105-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-108-0x00000000005E0000-0x0000000000633000-memory.dmp

    Filesize

    332KB

  • memory/2892-91-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-94-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-27-0x00000000002F0000-0x00000000002F1000-memory.dmp

    Filesize

    4KB

  • memory/2892-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/2892-5-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB

  • memory/2892-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB