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Analysis

  • max time kernel
    150s
  • max time network
    22s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    01/01/2025, 10:54

General

  • Target

    JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe

  • Size

    276KB

  • MD5

    52406ab5bc64563c1eb544c201c943aa

  • SHA1

    54a8ff5e620f03a98adde2bb0eb42c7fc80d7c1c

  • SHA256

    473f047c2ce0905a6a93ce61e38ff40612c547560c433938c69eb27691e9868f

  • SHA512

    96dc4579bce2e8860f56b48231ae9a1dd0ac4ec71d5a058bfcc5991b2498521a36a018bfa7afbcaeaec116995803c45c93f1f0463d5135eb5a5c9e55a21871b6

  • SSDEEP

    6144:Pg9OvfU5US1IhI88u0p4tA5eyeNZmz85VBWYx07Q6D:IOv85zcI8vA5MnmwIYo/

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

server

C2

psycho77777.ddns.net:1177

Mutex

24b6054fc8f5be0070f08d51b2a1dd72

Attributes
  • reg_key

    24b6054fc8f5be0070f08d51b2a1dd72

  • 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 33 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2236
    • 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:276
      • 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:3028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    276KB

    MD5

    52406ab5bc64563c1eb544c201c943aa

    SHA1

    54a8ff5e620f03a98adde2bb0eb42c7fc80d7c1c

    SHA256

    473f047c2ce0905a6a93ce61e38ff40612c547560c433938c69eb27691e9868f

    SHA512

    96dc4579bce2e8860f56b48231ae9a1dd0ac4ec71d5a058bfcc5991b2498521a36a018bfa7afbcaeaec116995803c45c93f1f0463d5135eb5a5c9e55a21871b6

  • memory/276-14-0x0000000074EB0000-0x000000007559E000-memory.dmp

    Filesize

    6.9MB

  • memory/276-15-0x0000000000D60000-0x0000000000DAC000-memory.dmp

    Filesize

    304KB

  • memory/276-16-0x0000000074EB0000-0x000000007559E000-memory.dmp

    Filesize

    6.9MB

  • memory/276-17-0x0000000074EB0000-0x000000007559E000-memory.dmp

    Filesize

    6.9MB

  • memory/276-18-0x0000000074EB0000-0x000000007559E000-memory.dmp

    Filesize

    6.9MB

  • memory/2236-2-0x0000000000380000-0x0000000000390000-memory.dmp

    Filesize

    64KB

  • memory/2236-3-0x0000000074EB0000-0x000000007559E000-memory.dmp

    Filesize

    6.9MB

  • memory/2236-4-0x00000000003F0000-0x0000000000406000-memory.dmp

    Filesize

    88KB

  • memory/2236-5-0x00000000003A0000-0x00000000003AC000-memory.dmp

    Filesize

    48KB

  • memory/2236-1-0x0000000000970000-0x00000000009BC000-memory.dmp

    Filesize

    304KB

  • memory/2236-13-0x0000000074EB0000-0x000000007559E000-memory.dmp

    Filesize

    6.9MB

  • memory/2236-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

    Filesize

    4KB