Analysis

  • max time kernel
    119s
  • max time network
    25s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2024, 15:48

General

  • Target

    1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe

  • Size

    131KB

  • MD5

    7593f02bfbb8aee2c614fa57fc573663

  • SHA1

    2bf98e5b9655c17907d3fb2a10ed6c3704bece45

  • SHA256

    1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b

  • SHA512

    761b99affcbc85a6ff07ea107eed8155950d4a48a83740e6d8b35134dcf0d6b18a5ba0fca81a07ff0326096a2b80fa45fc1ac7f8dd92e852ee28954dfa4fff0c

  • SSDEEP

    3072:ibxSTpiG8wMZJYKR5Gevfj7rZyqEX25Ny5k1jNfLbvu:ibx4ij9LjlvYX25Y5kxpf2

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

systemftp.serveftp.com:19495

Mutex

c154dc1439ce42713df8b7de38bd1b02

Attributes
  • reg_key

    c154dc1439ce42713df8b7de38bd1b02

  • splitter

    |'|'|

Signatures

  • Njrat family
  • 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
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe
    "C:\Users\Admin\AppData\Local\Temp\1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Users\Admin\AppData\Local\Temp\1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe
      C:\Users\Admin\AppData\Local\Temp\1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2360
      • C:\Users\Admin\AppData\Local\Temp\system.exe
        "C:\Users\Admin\AppData\Local\Temp\system.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2916
        • C:\Users\Admin\AppData\Local\Temp\system.exe
          C:\Users\Admin\AppData\Local\Temp\system.exe
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2628
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            • Event Triggered Execution: Netsh Helper DLL
            • System Location Discovery: System Language Discovery
            PID:1292

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    131KB

    MD5

    7593f02bfbb8aee2c614fa57fc573663

    SHA1

    2bf98e5b9655c17907d3fb2a10ed6c3704bece45

    SHA256

    1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b

    SHA512

    761b99affcbc85a6ff07ea107eed8155950d4a48a83740e6d8b35134dcf0d6b18a5ba0fca81a07ff0326096a2b80fa45fc1ac7f8dd92e852ee28954dfa4fff0c

  • memory/2104-22-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-25-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-3-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-4-0x0000000000330000-0x000000000033A000-memory.dmp

    Filesize

    40KB

  • memory/2104-1-0x0000000000B40000-0x0000000000B68000-memory.dmp

    Filesize

    160KB

  • memory/2104-0-0x000000007480E000-0x000000007480F000-memory.dmp

    Filesize

    4KB

  • memory/2104-2-0x0000000000630000-0x0000000000688000-memory.dmp

    Filesize

    352KB

  • memory/2104-23-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2360-19-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2360-24-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2360-21-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2360-16-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2360-34-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2916-33-0x0000000000160000-0x0000000000188000-memory.dmp

    Filesize

    160KB