Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2024 12:28

General

  • Target

    4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe

  • Size

    90KB

  • MD5

    20b8ae80b152181549132a0e23f6a580

  • SHA1

    8365958bd7f9d942ef6e6242c720e3f08eb85982

  • SHA256

    4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aa

  • SHA512

    f869dacdc27f0a811aa18324aedf3b13f94a40dd0331350689028b1a914e7af6dee58b3e59ddb683760ff329b0c0245470c686cc301316223087db58cb14f9f3

  • 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\4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe
    "C:\Users\Admin\AppData\Local\Temp\4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2892
    • C:\Users\Admin\AppData\Local\Temp\4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe
      "C:\Users\Admin\AppData\Local\Temp\4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1044
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UMIDT.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4832
        • 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:4724
      • 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:3624
        • 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:3264
        • 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:4972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    bc80abf5908be9350012583cb0cabc86

    SHA1

    2c842dcfde46df210b5a67ec5f35e5e92c7383db

    SHA256

    2c5528c741f3aaa119d1ab7d116641cf870d8e32d3862da610b7da83dd7c60ce

    SHA512

    d8092660235371a4c8a1dde40657465148ad3da60717ae63fb00eab97bb1e4ee1ba475fc4d1aaa52b1d367db213533dea93c4674b1998eeb4e58f7850dea607e

  • memory/1044-40-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1044-7-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1044-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1044-11-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1044-60-0x0000000000410000-0x00000000004D9000-memory.dmp

    Filesize

    804KB

  • memory/1044-62-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

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

    Filesize

    332KB

  • memory/2892-14-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-6-0x0000000002330000-0x0000000002332000-memory.dmp

    Filesize

    8KB

  • memory/2892-3-0x0000000002300000-0x0000000002302000-memory.dmp

    Filesize

    8KB

  • memory/2892-4-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2892-5-0x0000000002340000-0x0000000002342000-memory.dmp

    Filesize

    8KB

  • memory/3264-63-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3624-43-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3624-42-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3624-36-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3624-58-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4972-64-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4972-54-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4972-59-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4972-56-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4972-52-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4972-47-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB