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Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    17/01/2024, 18:22

General

  • Target

    63495c938c53f7d9fa71024ac479045d.exe

  • Size

    124KB

  • MD5

    63495c938c53f7d9fa71024ac479045d

  • SHA1

    6f3c331b43d0cba0b859cb49274b11afc0f73398

  • SHA256

    20fde3ceeab30299f1ec9ffee1d9314de41d59b7faaf1c4b2e64a58f507b3518

  • SHA512

    0a9445fcd7ce75129601c171479e1e683fbfaf01b0d05fdcb36428f657aaecbfe81973ec8eb32e88469e782108cc1308a17d5f6cdc9111e40f53fe5cc349ac4d

  • SSDEEP

    3072:0cIamlzZLkWwhsA6kjqIVwuup9T8pjy/W7:DNmlVLMhsA6k2I8XTGjy

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

11aabb.ddns.net:5552

Mutex

a5a8981207e642f9c714e6e4bd25fa08

Attributes
  • reg_key

    a5a8981207e642f9c714e6e4bd25fa08

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\63495c938c53f7d9fa71024ac479045d.exe
    "C:\Users\Admin\AppData\Local\Temp\63495c938c53f7d9fa71024ac479045d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:828
    • C:\Users\Admin\AppData\Roaming\taskhost.exe
      "C:\Users\Admin\AppData\Roaming\taskhost.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\taskhost.exe" "taskhost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\taskhost.exe

    Filesize

    124KB

    MD5

    63495c938c53f7d9fa71024ac479045d

    SHA1

    6f3c331b43d0cba0b859cb49274b11afc0f73398

    SHA256

    20fde3ceeab30299f1ec9ffee1d9314de41d59b7faaf1c4b2e64a58f507b3518

    SHA512

    0a9445fcd7ce75129601c171479e1e683fbfaf01b0d05fdcb36428f657aaecbfe81973ec8eb32e88469e782108cc1308a17d5f6cdc9111e40f53fe5cc349ac4d

  • memory/828-3-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/828-2-0x00000000002E0000-0x0000000000312000-memory.dmp

    Filesize

    200KB

  • memory/828-0-0x0000000001300000-0x0000000001326000-memory.dmp

    Filesize

    152KB

  • memory/828-4-0x0000000004AB0000-0x0000000004AF0000-memory.dmp

    Filesize

    256KB

  • memory/828-5-0x0000000000970000-0x000000000097C000-memory.dmp

    Filesize

    48KB

  • memory/828-1-0x0000000074570000-0x0000000074C5E000-memory.dmp

    Filesize

    6.9MB

  • memory/828-14-0x0000000074570000-0x0000000074C5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2776-15-0x0000000074570000-0x0000000074C5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2776-13-0x0000000000290000-0x00000000002B6000-memory.dmp

    Filesize

    152KB

  • memory/2776-16-0x0000000004130000-0x0000000004170000-memory.dmp

    Filesize

    256KB

  • memory/2776-17-0x0000000004130000-0x0000000004170000-memory.dmp

    Filesize

    256KB

  • memory/2776-18-0x0000000074570000-0x0000000074C5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2776-19-0x0000000004130000-0x0000000004170000-memory.dmp

    Filesize

    256KB

  • memory/2776-20-0x0000000004130000-0x0000000004170000-memory.dmp

    Filesize

    256KB