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Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2024, 05:27

General

  • Target

    gwr4j809gbrej089.exe

  • Size

    23KB

  • MD5

    476cbad4b571f2b67d584513386ebd2d

  • SHA1

    17d3a11fedbf7750ddff2cdbf3e4d236f0e19282

  • SHA256

    a0e7f92466f2684014a40a22f7488478ab07fc36e1df6c7dacb9c29063ff69d6

  • SHA512

    d50a7565026c76204c13a0dd0d5bc9574468bf841d6f75c223dce95f7ce7f21ce512e6b7dc67ca2fd3452410bed4f57fa9be80b798d98e16af2b3a7437e99c80

  • SSDEEP

    384:KoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIt:t7O89p2rRpcnuv

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.exe
    "C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4472
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\server.exe

    Filesize

    23KB

    MD5

    476cbad4b571f2b67d584513386ebd2d

    SHA1

    17d3a11fedbf7750ddff2cdbf3e4d236f0e19282

    SHA256

    a0e7f92466f2684014a40a22f7488478ab07fc36e1df6c7dacb9c29063ff69d6

    SHA512

    d50a7565026c76204c13a0dd0d5bc9574468bf841d6f75c223dce95f7ce7f21ce512e6b7dc67ca2fd3452410bed4f57fa9be80b798d98e16af2b3a7437e99c80

  • memory/1648-2-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/1648-1-0x00000000018F0000-0x0000000001900000-memory.dmp

    Filesize

    64KB

  • memory/1648-0-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/1648-13-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4472-15-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4472-14-0x00000000016D0000-0x00000000016E0000-memory.dmp

    Filesize

    64KB

  • memory/4472-12-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4472-16-0x00000000016D0000-0x00000000016E0000-memory.dmp

    Filesize

    64KB

  • memory/4472-17-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB