Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2024, 01:43

General

  • Target
    9cae0efc5e46764e812450c11f385dfd_JaffaCakes118.exe
  • Size 522KB
  • Sample240403-b48klscb8x
  • SHA256 e9431fe2082e51e40fe79444314c55e511a90ef1d8abdf9304e653cf24d22d78
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • kamuchehddhgfgf.ddns.net:1187

  • 37.0.10.22:1187

Mutex
  • 9ff0e8a4-a323-4111-bc49-0daecb63120d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    37.0.10.22

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-17T00:05:39.048278936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1187

  • default_group

    Default

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    9ff0e8a4-a323-4111-bc49-0daecb63120d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    kamuchehddhgfgf.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9cae0efc5e46764e812450c11f385dfd_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9cae0efc5e46764e812450c11f385dfd_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Users\Admin\AppData\Local\Temp\9cae0efc5e46764e812450c11f385dfd_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\9cae0efc5e46764e812450c11f385dfd_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3244

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        9cae0efc5e46764e812450c11f385dfd_JaffaCakes118.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\9cae0efc5e46764e812450c11f385dfd_JaffaCakes118.exe.log
        • Size 496B
        • SHA256 8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349
        • MD5 SHA1 SHA512

        memory/644-9-0x0000000075360000-0x0000000075911000-memory.dmp

        memory/644-2-0x0000000075360000-0x0000000075911000-memory.dmp

        memory/644-3-0x0000000075360000-0x0000000075911000-memory.dmp

        memory/644-4-0x0000000000F90000-0x0000000000FA0000-memory.dmp

        memory/644-5-0x0000000000F90000-0x0000000000FA0000-memory.dmp

        memory/644-0-0x0000000075360000-0x0000000075911000-memory.dmp

        memory/644-1-0x0000000000F90000-0x0000000000FA0000-memory.dmp

        memory/3244-10-0x0000000075360000-0x0000000075911000-memory.dmp

        memory/3244-6-0x0000000000400000-0x0000000000438000-memory.dmp

        memory/3244-11-0x00000000018A0000-0x00000000018B0000-memory.dmp

        memory/3244-13-0x0000000075360000-0x0000000075911000-memory.dmp

        memory/3244-15-0x0000000075360000-0x0000000075911000-memory.dmp

        memory/3244-16-0x00000000018A0000-0x00000000018B0000-memory.dmp

        memory/3244-17-0x00000000018A0000-0x00000000018B0000-memory.dmp