Resubmissions

24-02-2024 17:16

240224-vtc6hahc47 10

24-02-2024 17:12

240224-vqwhnshb79 10

Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-02-2024 17:12

General

  • Target

    a24fece3e9e01f1a6bc4f7cb714014a2.exe

  • Size

    275KB

  • MD5

    a24fece3e9e01f1a6bc4f7cb714014a2

  • SHA1

    01989aa4752c92cb00c6b8767306f3394b67ad28

  • SHA256

    645cf5b196cdba633bfafb1aa9b1ed04ffc9db6b6f12900049674747e3983d06

  • SHA512

    ea1b5ad531a6aed0ae8300b94f7d4d48dee47dc0919fe6bf46abdce881fe10875a354a51282839471fcb616981b5b621e2be0a9555a7709589bbf826860b262c

  • SSDEEP

    6144:pMBDE219hOFro7TsI4sRw844kFY1NRlE8A6QbEoeFjeZg2tkec3GsuI:bwTOFcXFJV4DkNRO8m9LgKD7sx

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Hacked

C2

abdo95.ddns.net:1177

Mutex

ed6e2bf930f6d35b3ac57c049d10ac2c

Attributes
  • reg_key

    ed6e2bf930f6d35b3ac57c049d10ac2c

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a24fece3e9e01f1a6bc4f7cb714014a2.exe
    "C:\Users\Admin\AppData\Local\Temp\a24fece3e9e01f1a6bc4f7cb714014a2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c test.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Users\Admin\AppData\Local\Temp\test.exe
        test.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Users\Admin\AppData\Local\Temp\Explorer.exe
          "C:\Users\Admin\AppData\Local\Temp\Explorer.exe"
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2508
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Explorer.exe" "Explorer.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:2644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\test.exe

    Filesize

    29KB

    MD5

    fc42513e45503d510fb011bbb309e51e

    SHA1

    e9741466f6e68dadb9e874f12d5b62fe14693741

    SHA256

    766240fd9026a04e4a7f20240f699133eef24a969e242afdd471ad0a179cefe3

    SHA512

    0f2a88f96a8a47abe062ccca986d2b3d98310374629c9067b19dbfeb73f23ba411b3ca5ae3877684770fb2d25947305b42c38a913a329e6220de6cd5d539a8ca

  • memory/2240-0-0x0000000000400000-0x0000000000498000-memory.dmp

    Filesize

    608KB

  • memory/2240-18-0x0000000000400000-0x0000000000498000-memory.dmp

    Filesize

    608KB

  • memory/2508-16-0x0000000074040000-0x00000000745EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2508-17-0x00000000003F0000-0x0000000000430000-memory.dmp

    Filesize

    256KB

  • memory/2508-19-0x0000000074040000-0x00000000745EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2508-21-0x0000000074040000-0x00000000745EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2508-22-0x00000000003F0000-0x0000000000430000-memory.dmp

    Filesize

    256KB

  • memory/2588-5-0x0000000074040000-0x00000000745EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2588-6-0x0000000074040000-0x00000000745EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2588-8-0x0000000000100000-0x0000000000140000-memory.dmp

    Filesize

    256KB

  • memory/2588-15-0x0000000074040000-0x00000000745EB000-memory.dmp

    Filesize

    5.7MB