Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-05-2024 14:16

General

  • Target

    4b8d9773b48344c7745f829df9f3ad3a4a68358f0067c09603ad18a742e8cc0e.exe

  • Size

    804KB

  • MD5

    28d0b2cee398061a43e4b5cd5274d1cc

  • SHA1

    e9c41579e65742d367de7a2967e3f381514662d3

  • SHA256

    4b8d9773b48344c7745f829df9f3ad3a4a68358f0067c09603ad18a742e8cc0e

  • SHA512

    be28f02c86c4a8bc815835b9e9d8cea92806b77419432805acc5a005172889a8762ccba506dcf513b7e4d2919367ee42af6eecd249b3e0725d153636f37c7ee8

  • SSDEEP

    12288:AHcvn0+xAE2Hcvn0+xAE2Hcvn0+xAE2Hcvn0+xAEd2iNuHcvn0+xAEX4kDmbDm0C:9TJTJTJTv1xTbmbS0Kt

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Drops startup file 2 IoCs
  • 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 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b8d9773b48344c7745f829df9f3ad3a4a68358f0067c09603ad18a742e8cc0e.exe
    "C:\Users\Admin\AppData\Local\Temp\4b8d9773b48344c7745f829df9f3ad3a4a68358f0067c09603ad18a742e8cc0e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2264
    • C:\Users\Admin\AppData\Local\Temp\microsoftx.exe
      "C:\Users\Admin\AppData\Local\Temp\microsoftx.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2108
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\microsoftx.exe" "microsoftx.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    804KB

    MD5

    28d0b2cee398061a43e4b5cd5274d1cc

    SHA1

    e9c41579e65742d367de7a2967e3f381514662d3

    SHA256

    4b8d9773b48344c7745f829df9f3ad3a4a68358f0067c09603ad18a742e8cc0e

    SHA512

    be28f02c86c4a8bc815835b9e9d8cea92806b77419432805acc5a005172889a8762ccba506dcf513b7e4d2919367ee42af6eecd249b3e0725d153636f37c7ee8

  • memory/2108-24-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-22-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-27-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-26-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-25-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-17-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-19-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-20-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-18-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-21-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-2-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-0-0x0000000074A02000-0x0000000074A03000-memory.dmp

    Filesize

    4KB

  • memory/2264-1-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-4-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-3-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB