Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-10-2024 00:52

General

  • Target

    7b4ac6ead1afb8ef52d953771da4ae26_JaffaCakes118.exe

  • Size

    430KB

  • MD5

    7b4ac6ead1afb8ef52d953771da4ae26

  • SHA1

    c0700a4e6db1b0359d9bbe874a4846b3f59e6842

  • SHA256

    db0b7daddfb93b02c72a178832d9f41cc65e143150453c8ee25b73e9690776d8

  • SHA512

    6e1f9fbfd22b5b57a924ad4485e138de45b974941427bac93886b16f20d73c2259bb665cf67d5a5949a55309146272688e6c4f4bb15369c63ba602e780f44eb2

  • SSDEEP

    96:msDYb94x6pIEYaXcwhx5zWLYxT9Fk7Z0epAS+b+zNt:lEb94x8pYapz1WLOxO7Z0dSCY

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:999

Mutex

9e744e168345acdb0c7cb12c3351cf40

Attributes
  • reg_key

    9e744e168345acdb0c7cb12c3351cf40

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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.

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b4ac6ead1afb8ef52d953771da4ae26_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7b4ac6ead1afb8ef52d953771da4ae26_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2228
    • 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
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2064
      • C:\Windows\SYSTEM32\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
        PID:440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    430KB

    MD5

    7b4ac6ead1afb8ef52d953771da4ae26

    SHA1

    c0700a4e6db1b0359d9bbe874a4846b3f59e6842

    SHA256

    db0b7daddfb93b02c72a178832d9f41cc65e143150453c8ee25b73e9690776d8

    SHA512

    6e1f9fbfd22b5b57a924ad4485e138de45b974941427bac93886b16f20d73c2259bb665cf67d5a5949a55309146272688e6c4f4bb15369c63ba602e780f44eb2

  • memory/2064-15-0x00007FF8978D0000-0x00007FF898391000-memory.dmp

    Filesize

    10.8MB

  • memory/2064-16-0x00007FF8978D0000-0x00007FF898391000-memory.dmp

    Filesize

    10.8MB

  • memory/2064-17-0x00007FF8978D0000-0x00007FF898391000-memory.dmp

    Filesize

    10.8MB

  • memory/2064-18-0x00007FF8978D0000-0x00007FF898391000-memory.dmp

    Filesize

    10.8MB

  • memory/2228-0-0x00007FF8978D3000-0x00007FF8978D5000-memory.dmp

    Filesize

    8KB

  • memory/2228-1-0x0000000000F10000-0x0000000000F82000-memory.dmp

    Filesize

    456KB

  • memory/2228-2-0x0000000002FE0000-0x0000000002FEC000-memory.dmp

    Filesize

    48KB