Analysis

  • max time kernel
    150s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22/03/2025, 06:17

General

  • Target

    d61b23d4acf185dc6322a40c7f0f56e0.exe

  • Size

    23KB

  • MD5

    d61b23d4acf185dc6322a40c7f0f56e0

  • SHA1

    90f6f4fa60866f3704511f12b6453e4104572336

  • SHA256

    d7322f0f7be2eee421ed79fd2be0d8a01d38b0b8663b6c6a1eb29afe4d63f6e0

  • SHA512

    a72d51948bae56df0bab442b5b8a8e04f8eba03cb102a9962cd5582830af157d961844d2918390dc1ee74fb6814996ccd76ba4ac23a57d0cd6a8c2db11562e86

  • SSDEEP

    384:rweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZuf:MLq411eRpcnuf

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

xxlxali.ddns.net:1177

Mutex

0f281b12f603c40d203a8a7911c030da

Attributes
  • reg_key

    0f281b12f603c40d203a8a7911c030da

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 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).

  • 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 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d61b23d4acf185dc6322a40c7f0f56e0.exe
    "C:\Users\Admin\AppData\Local\Temp\d61b23d4acf185dc6322a40c7f0f56e0.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1784
    • 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
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2848

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    23KB

    MD5

    d61b23d4acf185dc6322a40c7f0f56e0

    SHA1

    90f6f4fa60866f3704511f12b6453e4104572336

    SHA256

    d7322f0f7be2eee421ed79fd2be0d8a01d38b0b8663b6c6a1eb29afe4d63f6e0

    SHA512

    a72d51948bae56df0bab442b5b8a8e04f8eba03cb102a9962cd5582830af157d961844d2918390dc1ee74fb6814996ccd76ba4ac23a57d0cd6a8c2db11562e86

  • memory/1100-11-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/1100-12-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/1100-13-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/1784-0-0x0000000074531000-0x0000000074532000-memory.dmp

    Filesize

    4KB

  • memory/1784-1-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/1784-2-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/1784-10-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB