Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/11/2024, 06:54

General

  • Target

    78e62d0420c9686e7927d520489a8c4c59da5d02e1a462c0dac36658afbe73a4N.exe

  • Size

    90KB

  • MD5

    152192cd7b964e0556abd0f5dbe5c850

  • SHA1

    58c8a91fea790c461e8cd2759b3e8d2e34c169e2

  • SHA256

    78e62d0420c9686e7927d520489a8c4c59da5d02e1a462c0dac36658afbe73a4

  • SHA512

    04d175b9121d5b3a7d76b13fc2129a730f7bf6938d5efe1a250838dc4dd0f3538cc7d897644156051cc00dcbb09dfdd3c8e26a52910c7b10b9f07a660612404c

  • 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 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 20 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 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78e62d0420c9686e7927d520489a8c4c59da5d02e1a462c0dac36658afbe73a4N.exe
    "C:\Users\Admin\AppData\Local\Temp\78e62d0420c9686e7927d520489a8c4c59da5d02e1a462c0dac36658afbe73a4N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Users\Admin\AppData\Local\Temp\78e62d0420c9686e7927d520489a8c4c59da5d02e1a462c0dac36658afbe73a4N.exe
      "C:\Users\Admin\AppData\Local\Temp\78e62d0420c9686e7927d520489a8c4c59da5d02e1a462c0dac36658afbe73a4N.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2108
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PFBXW.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4484
        • 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:1280
      • 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:1456
        • 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:4776
        • 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:2512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    99e6829f0177ef81a99f48e7c2bd9ec5

    SHA1

    8aea9bb44c4e1e456fb4e0303ee0e55f8835b22b

    SHA256

    3cd0291552928a4feb7d506cb3d7ee0b0679ed7c756a1745727862ca77200ed1

    SHA512

    70419638b74ea8f7d4e36397bf4894c051a7363c083e18cce813401733caa0592daa9eaf1ad168008315e040e9288bab9c9e4540683027e7277d2c184250335d

  • memory/1456-55-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1456-42-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1456-41-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1456-36-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2108-40-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2108-59-0x0000000000410000-0x00000000004D9000-memory.dmp

    Filesize

    804KB

  • memory/2108-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2108-7-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2108-11-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2108-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2484-14-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2484-5-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2484-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2484-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

    Filesize

    8KB

  • memory/2484-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

    Filesize

    8KB

  • memory/2484-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

    Filesize

    8KB

  • memory/2512-48-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2512-58-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2512-57-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2512-56-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2512-53-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2512-62-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4776-61-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB