Analysis

  • max time kernel
    119s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    03-11-2024 03:15

General

  • Target

    3813b49e53474788ae0ffc9ef03d8cb9131aa6bffa516bfe2bc81e200a1f405bN.exe

  • Size

    90KB

  • MD5

    3815688039508c615f55f0e78e33b220

  • SHA1

    d1f569fd763296f924c3893b18097629177afc7a

  • SHA256

    3813b49e53474788ae0ffc9ef03d8cb9131aa6bffa516bfe2bc81e200a1f405b

  • SHA512

    cf484974d5aee66250db465245b56881935390e1275535ce72699ba877bf6cebeec133f4d52a08a00836b6ac3735cc2b845f44c6d2678edcd718a08cbee7f79e

  • 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 family
  • ModiLoader Second Stage 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 21 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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\3813b49e53474788ae0ffc9ef03d8cb9131aa6bffa516bfe2bc81e200a1f405bN.exe
    "C:\Users\Admin\AppData\Local\Temp\3813b49e53474788ae0ffc9ef03d8cb9131aa6bffa516bfe2bc81e200a1f405bN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Users\Admin\AppData\Local\Temp\3813b49e53474788ae0ffc9ef03d8cb9131aa6bffa516bfe2bc81e200a1f405bN.exe
      "C:\Users\Admin\AppData\Local\Temp\3813b49e53474788ae0ffc9ef03d8cb9131aa6bffa516bfe2bc81e200a1f405bN.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\WKPUA.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1624
        • 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
          • System Location Discovery: System Language Discovery
          PID:2584
      • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2664
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:948
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    e78d13b138408f1d5f002acbece46765

    SHA1

    998b1a5f175bdbe71f4d29136940085ec7aaba92

    SHA256

    dcd2abbfe41ab00028b598b722472b5abff5a2bad983f0d536c2959c7cb06d7e

    SHA512

    0b4e035868720d177950e1570a33b9810bceb179af06ff799126c3b4a31548bd7685631589feccb286ddcba2884c572b45862422f07dfa8e75c9fc9e51dd70ab

  • memory/948-256-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2548-61-0x0000000000350000-0x0000000000351000-memory.dmp

    Filesize

    4KB

  • memory/2548-18-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2548-32-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2548-41-0x0000000000310000-0x0000000000311000-memory.dmp

    Filesize

    4KB

  • memory/2548-28-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2548-89-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2548-79-0x0000000000390000-0x0000000000392000-memory.dmp

    Filesize

    8KB

  • memory/2548-90-0x00000000004A0000-0x00000000004F3000-memory.dmp

    Filesize

    332KB

  • memory/2548-71-0x0000000000370000-0x0000000000371000-memory.dmp

    Filesize

    4KB

  • memory/2548-3-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2548-5-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2548-15-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2548-103-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2548-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2568-250-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2568-259-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2664-252-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2664-164-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2664-249-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2664-215-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2664-148-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2664-175-0x00000000003F0000-0x00000000003F1000-memory.dmp

    Filesize

    4KB

  • memory/2664-154-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/3032-106-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3032-151-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3032-146-0x00000000033A0000-0x00000000033F3000-memory.dmp

    Filesize

    332KB

  • memory/3032-133-0x00000000033A0000-0x00000000033F3000-memory.dmp

    Filesize

    332KB

  • memory/3032-102-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3032-104-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3032-239-0x00000000033A0000-0x00000000033F3000-memory.dmp

    Filesize

    332KB

  • memory/3032-99-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3032-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3032-95-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3032-255-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3032-93-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3032-91-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB