Analysis

  • max time kernel
    119s
  • 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
    24/11/2024, 19:07

General

  • Target

    645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe

  • Size

    90KB

  • MD5

    f5686b93f7aa2f187d85609f6dfafbd3

  • SHA1

    ff0123f7363397e6c969adefbc21b0f0204f56ce

  • SHA256

    645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63

  • SHA512

    4337d08a323e6240cf313f396a0330aa9c6bc6ff03f5537467f767876db61b0ff315359e18f5b85a42124b31fbe871233127fe6c796c0d05892eb6b38116ec95

  • SSDEEP

    1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDg:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3K

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\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
    "C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
      "C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1876
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NJGXV.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4104
        • 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:332
      • 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:1380
        • 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:4892
        • 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:4896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    29abfe617de33a86901df71827c04bad

    SHA1

    40e68a2ca2db91dbb45fc2f26326dba3d554c68d

    SHA256

    a313a6223a36acd27f94d8926897d02792a54a8909f7676fe98b0956a08da60c

    SHA512

    612e88f2e03db4d889bad3d6bf7cbcf60380d2057862b5950e0033e46dbeafe6e9656829a2a91a0542f3b6cbfbde669220640d6a6afa19b78088fb1fe6fdb529

  • memory/1380-56-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1380-41-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1380-40-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1876-6-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1876-11-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1876-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1876-39-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1876-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2432-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

    Filesize

    8KB

  • memory/2432-14-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2432-8-0x0000000002200000-0x0000000002202000-memory.dmp

    Filesize

    8KB

  • memory/2432-5-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2432-4-0x00000000021E0000-0x00000000021E2000-memory.dmp

    Filesize

    8KB

  • memory/2432-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4892-46-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4892-61-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4896-57-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4896-55-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4896-48-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4896-62-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB