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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24/12/2024, 02:46

General

  • Target

    55e2016fcb659bdf0f46a24ef2876609.exe

  • Size

    93KB

  • MD5

    55e2016fcb659bdf0f46a24ef2876609

  • SHA1

    5afb69f26ddf1884372643a2b00d16a481fc7c26

  • SHA256

    3825fe6fd9e8754b3d4a374b8c73884647c6898d5e1220a0fe89b1a3dc8e35c4

  • SHA512

    4de0fb035b904bd2557d48aacfea53346748e0dbda86b710ee86796c374c37fd35e50f4d8b05cd1c058f95665894629f8848f4bce45378c00ced771baaea3e46

  • SSDEEP

    1536:jwWmC+xhUa9urgOB9RNvM4jEwzGi1dDID0gS:cWgUa9urgONdGi1dmt

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Owned

C2

hakim32.ddns.net:2000

167.71.56.116:22342

Mutex

24983f03fb74576bbc5af6aa1085b23d

Attributes
  • reg_key

    24983f03fb74576bbc5af6aa1085b23d

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 3 IoCs
  • Drops startup file 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55e2016fcb659bdf0f46a24ef2876609.exe
    "C:\Users\Admin\AppData\Local\Temp\55e2016fcb659bdf0f46a24ef2876609.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2088
      • 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:2868
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2852
      • 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:2796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\app

    Filesize

    5B

    MD5

    8fc22f973bec7f0525710dcf02f05edf

    SHA1

    418f88fe2c59f8d9579994aec4034d785e8ac00c

    SHA256

    ba0e21ceb11b1ec62709b0141373ce65de5a156b822c9b6d3c3f9ed9ab224a46

    SHA512

    ac280118b4b0ee9643ecc464bfc91682ccccd530efa81dcc3d9471044305d59de661f865560206f089822299cb431dbad9f81a16ad667251375746d406f2b44d

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

    Filesize

    93KB

    MD5

    55e2016fcb659bdf0f46a24ef2876609

    SHA1

    5afb69f26ddf1884372643a2b00d16a481fc7c26

    SHA256

    3825fe6fd9e8754b3d4a374b8c73884647c6898d5e1220a0fe89b1a3dc8e35c4

    SHA512

    4de0fb035b904bd2557d48aacfea53346748e0dbda86b710ee86796c374c37fd35e50f4d8b05cd1c058f95665894629f8848f4bce45378c00ced771baaea3e46

  • memory/2088-15-0x0000000074B50000-0x00000000750FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2088-16-0x0000000074B50000-0x00000000750FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2088-43-0x0000000074B50000-0x00000000750FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3012-0-0x0000000074B51000-0x0000000074B52000-memory.dmp

    Filesize

    4KB

  • memory/3012-1-0x0000000074B50000-0x00000000750FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3012-2-0x0000000074B50000-0x00000000750FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3012-14-0x0000000074B50000-0x00000000750FB000-memory.dmp

    Filesize

    5.7MB