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Analysis

  • max time kernel
    119s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2024, 21:50

General

  • Target

    856f94ae18e9669995a359a9daf2e0d37be629365af85cd45c23e4b9a968ac23N.exe

  • Size

    90KB

  • MD5

    858dc425100f439d8fe88620b4859580

  • SHA1

    f390369e38ae18b8759a62f4b42bfe73b8e66484

  • SHA256

    856f94ae18e9669995a359a9daf2e0d37be629365af85cd45c23e4b9a968ac23

  • SHA512

    2447d3345371dff72ce05a7eec02ca6a67decbc16658bbbef8b9332e53b5e98529d8487135486f23a82a331e401c232392390c88dfb0919b69f8791ccb2ffa49

  • 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 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 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\856f94ae18e9669995a359a9daf2e0d37be629365af85cd45c23e4b9a968ac23N.exe
    "C:\Users\Admin\AppData\Local\Temp\856f94ae18e9669995a359a9daf2e0d37be629365af85cd45c23e4b9a968ac23N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3960
    • C:\Users\Admin\AppData\Local\Temp\856f94ae18e9669995a359a9daf2e0d37be629365af85cd45c23e4b9a968ac23N.exe
      "C:\Users\Admin\AppData\Local\Temp\856f94ae18e9669995a359a9daf2e0d37be629365af85cd45c23e4b9a968ac23N.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3652
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YLBPL.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3588
        • 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:5080
      • 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:3636
        • 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:228
        • 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:4476

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    05b56a3b537b0592c721cd69c84cc5e4

    SHA1

    d63a9ff0ae2b3781ee5ed94adcf90916003a611e

    SHA256

    765d575b3d5fb6b3f12921f22cea639ea90b6ab2662f380f79828cda4e57e6b6

    SHA512

    84de2893dbc013cd2f2736d2bb5bb4c170d70cc7f921a3f41d6fc2f0726a892057164816f2f6dc4c9a601c8e909c1154b32de179b86bb261688b88ecbce7c8d3

  • memory/228-62-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3636-59-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3636-42-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3636-41-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3636-36-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3652-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3652-13-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3652-7-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3652-40-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3652-12-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3652-61-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3652-60-0x0000000000410000-0x00000000004D9000-memory.dmp

    Filesize

    804KB

  • memory/3960-4-0x0000000002C80000-0x0000000002C82000-memory.dmp

    Filesize

    8KB

  • memory/3960-11-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3960-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3960-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

    Filesize

    8KB

  • memory/3960-5-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3960-3-0x0000000002B70000-0x0000000002B72000-memory.dmp

    Filesize

    8KB

  • memory/4476-46-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4476-57-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4476-54-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4476-55-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4476-52-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4476-63-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB