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Analysis

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

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/12/2024, 22:33

General

  • Target

    47e7a835e8fd665011575960bdcb0ae4687043b152ff47770224be535f534a3eN.exe

  • Size

    90KB

  • MD5

    21854720bee3ffeb56e8ec1da07ef350

  • SHA1

    819964678199036d500f0689c8816250cefac86d

  • SHA256

    47e7a835e8fd665011575960bdcb0ae4687043b152ff47770224be535f534a3e

  • SHA512

    ff43ebf4da79760d4114770300046712aa706b61fe18274e9f65d06f9abfdd6b3a8a5e6ff933a3d70e1fa1d20b3e4ec34ee937c6ea2e5ddd2ae238d332c5abff

  • SSDEEP

    1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDM: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 17 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\47e7a835e8fd665011575960bdcb0ae4687043b152ff47770224be535f534a3eN.exe
    "C:\Users\Admin\AppData\Local\Temp\47e7a835e8fd665011575960bdcb0ae4687043b152ff47770224be535f534a3eN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Users\Admin\AppData\Local\Temp\47e7a835e8fd665011575960bdcb0ae4687043b152ff47770224be535f534a3eN.exe
      "C:\Users\Admin\AppData\Local\Temp\47e7a835e8fd665011575960bdcb0ae4687043b152ff47770224be535f534a3eN.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BRSPX.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3604
        • 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:3612
      • 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:8
        • 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:1492
        • 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:2880

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    03c2c89ee4bbea70504f8f4af50f1804

    SHA1

    556361cdbab628e374816c24c10c6604fb3731f3

    SHA256

    e3b06e90fed7f8592b7e476923e7f5b23ab6ccd9310c03638672d53f57fe00ef

    SHA512

    9579d0a8b635cc256f9305c7a6c541684f064a2c8d69c81230351bc6602363a0de80f454a60313d29a3e46b229d2c03c7abb8b60a03818685d3abd34d8d194b4

  • memory/8-58-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/8-34-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/8-40-0x00007FFBE2950000-0x00007FFBE2B45000-memory.dmp

    Filesize

    2.0MB

  • memory/1160-6-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1160-61-0x00007FFBE2950000-0x00007FFBE2B45000-memory.dmp

    Filesize

    2.0MB

  • memory/1160-9-0x00007FFBE2950000-0x00007FFBE2B45000-memory.dmp

    Filesize

    2.0MB

  • memory/1160-4-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1160-38-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1160-39-0x00007FFBE2950000-0x00007FFBE2B45000-memory.dmp

    Filesize

    2.0MB

  • memory/1160-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1160-59-0x0000000000410000-0x00000000004D9000-memory.dmp

    Filesize

    804KB

  • memory/1160-8-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1492-62-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1492-52-0x00007FFBE2950000-0x00007FFBE2B45000-memory.dmp

    Filesize

    2.0MB

  • memory/2880-49-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2880-50-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2880-44-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2880-51-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2880-54-0x00007FFBE2950000-0x00007FFBE2B45000-memory.dmp

    Filesize

    2.0MB

  • memory/2880-53-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2880-63-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5064-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/5064-11-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/5064-3-0x00007FFBE2950000-0x00007FFBE2B45000-memory.dmp

    Filesize

    2.0MB