Analysis

  • max time kernel
    145s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    11-06-2024 18:48

General

  • Target

    9f32b011d9f3ee5a0c0aa8b54655065a_JaffaCakes118.exe

  • Size

    348KB

  • MD5

    9f32b011d9f3ee5a0c0aa8b54655065a

  • SHA1

    b77d4d68f52c4f670b00fd94e3f2f60dd53d0b0a

  • SHA256

    46a7afc5697ad52b2afb17b31e14f76166727678ec123b3dc0e8eb692eee6434

  • SHA512

    ae243b44adab08e559ab7b816c517b37fd72465f3d4be3e3b72fcbd42bb5c73d68b6c4386795f907b7d938cd55e0f103774e824e8eede2bc24fc716be56e22d2

  • SSDEEP

    6144:kh57iTz9Iua77Zaq4moDrovqy3VMCmhdFz6xGnmO/xt/SyTdWs1sEuOJbuvkiHKg:A7iTzm7Qhm+oCOVHm/F+xu/xthTdWsaK

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

46.165.208.105:57841

127.0.0.1:57841

Mutex

71be27d2-ab4d-48ae-98f0-a607087a90ee

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2017-01-09T04:11:16.546098036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    57841

  • 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

    71be27d2-ab4d-48ae-98f0-a607087a90ee

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    46.165.208.105

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f32b011d9f3ee5a0c0aa8b54655065a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9f32b011d9f3ee5a0c0aa8b54655065a_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Update\KRUaNoyqNjgRaaOokUXewXMjSUSoLjmwWNmnkPvRvOtoPSSECjKOyiQa" /XML "C:\Users\Admin\AppData\Local\Temp\z231"
      2⤵
      • Creates scheduled task(s)
      PID:2736
    • C:\Users\Admin\AppData\Local\Temp\9f32b011d9f3ee5a0c0aa8b54655065a_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\9f32b011d9f3ee5a0c0aa8b54655065a_JaffaCakes118.exe"
      2⤵
        PID:2668
      • C:\Users\Admin\AppData\Local\Temp\9f32b011d9f3ee5a0c0aa8b54655065a_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\9f32b011d9f3ee5a0c0aa8b54655065a_JaffaCakes118.exe"
        2⤵
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:2588

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Scheduled Task/Job

    1
    T1053

    Discovery

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\z231
      Filesize

      1KB

      MD5

      aeacfe60fe7b22bc3346546dc8a2ac5f

      SHA1

      7222613f403bcf50bf036963098c7810eb82f43e

      SHA256

      f5290afb2aedc7fb25b67d0517e1217473ae4dca8184f4c15296014b7c461f1d

      SHA512

      f279dc6784f99443ecaefce7924a972b62f885248d23322a2292283b92d309a38ed7cb58ab33d68230cef08c747a611b77b0a1f910294fd6bc448fe88cef3fab

    • memory/1904-0-0x0000000074211000-0x0000000074212000-memory.dmp
      Filesize

      4KB

    • memory/1904-1-0x0000000074210000-0x00000000747BB000-memory.dmp
      Filesize

      5.7MB

    • memory/1904-2-0x0000000074210000-0x00000000747BB000-memory.dmp
      Filesize

      5.7MB

    • memory/1904-26-0x0000000074210000-0x00000000747BB000-memory.dmp
      Filesize

      5.7MB

    • memory/2588-21-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2588-23-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2588-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2588-16-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2588-13-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2588-10-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2588-8-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2588-24-0x0000000074210000-0x00000000747BB000-memory.dmp
      Filesize

      5.7MB

    • memory/2588-6-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2588-27-0x0000000074210000-0x00000000747BB000-memory.dmp
      Filesize

      5.7MB