Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    13-07-2024 01:57

General

  • Target

    3fbf4f14ff480243f53b0477defd3995_JaffaCakes118.exe

  • Size

    913KB

  • MD5

    3fbf4f14ff480243f53b0477defd3995

  • SHA1

    d178ff6dc580c833f91786c8783dd250cbce2b82

  • SHA256

    cc18b66023cf4fbe41954d1b2e5cc60604692ea30ad3defb5f80338263be2460

  • SHA512

    fca674a5101e06920d27554332068beecefb15f48cb1fddf00134a49525f0e8098f1b75fee7a4f13d90279c64ec68d51fac8eabfda4352798ff0f67151dac738

  • SSDEEP

    24576:uzS1ZKZRQVusF2xRzNCqYcW+ZPXtwuBLfjJMvNZVMO1:OOcZRQ8JC/3qXzjOvNnMO1

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ericfresh.ddns.net:5050

194.5.98.231:5050

Mutex

1cc63107-cf54-416d-8fa1-7e896d8292b1

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.5.98.231

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-11-01T16:21:10.866219736Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    5050

  • default_group

    ERICFRESH

  • 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

    1cc63107-cf54-416d-8fa1-7e896d8292b1

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    ericfresh.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3fbf4f14ff480243f53b0477defd3995_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3fbf4f14ff480243f53b0477defd3995_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1140
    • C:\Users\Admin\AppData\Local\Temp\3fbf4f14ff480243f53b0477defd3995_JaffaCakes118.exe
      "{path}"
      2⤵
        PID:2952
      • C:\Users\Admin\AppData\Local\Temp\3fbf4f14ff480243f53b0477defd3995_JaffaCakes118.exe
        "{path}"
        2⤵
          PID:2132
        • C:\Users\Admin\AppData\Local\Temp\3fbf4f14ff480243f53b0477defd3995_JaffaCakes118.exe
          "{path}"
          2⤵
          • Checks whether UAC is enabled
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2800
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "SMTP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6B22.tmp"
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2752

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp6B22.tmp

        Filesize

        1KB

        MD5

        27bda92b7c2570646e2c6409a5120cf9

        SHA1

        874d50950a579a580cefab51107dd8fcc9ee518a

        SHA256

        bd7cd2b5e0dac58ed92e38127028387af636a08f1eb9ce539596cd2cb7fdcc9d

        SHA512

        025b97b3048b8c9912e166308eb235a25da26c4aeed5569d875a96e2825e05b443faf881d7a7af7b9a3ac44152226f8fffbfdd2624f0abc830887efef3d03a12

      • memory/1140-6-0x0000000001EF0000-0x0000000001F8C000-memory.dmp

        Filesize

        624KB

      • memory/1140-3-0x0000000001DE0000-0x0000000001DEA000-memory.dmp

        Filesize

        40KB

      • memory/1140-1-0x0000000000020000-0x000000000010A000-memory.dmp

        Filesize

        936KB

      • memory/1140-4-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

        Filesize

        4KB

      • memory/1140-5-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/1140-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

        Filesize

        4KB

      • memory/1140-18-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/1140-2-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2800-29-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2800-19-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2800-10-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2800-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2800-9-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2800-15-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2800-13-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2800-17-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2800-20-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2800-8-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2800-25-0x00000000004B0000-0x00000000004BA000-memory.dmp

        Filesize

        40KB

      • memory/2800-26-0x00000000004C0000-0x00000000004DE000-memory.dmp

        Filesize

        120KB

      • memory/2800-27-0x00000000004F0000-0x00000000004FA000-memory.dmp

        Filesize

        40KB

      • memory/2800-28-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2800-7-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB