Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2023 14:24

General

  • Target

    07d9eeffaac90b7fcd1bf8b3930a2044.exe

  • Size

    280KB

  • MD5

    07d9eeffaac90b7fcd1bf8b3930a2044

  • SHA1

    445b329dc821c72cdbd167576cb4e5654b49f1ae

  • SHA256

    6427336ade955128d895921dbb9bbcc379ad910690ff63f6deff3794a2086c8c

  • SHA512

    c318090ef0c4bd573b68b8539b87be677114e25bbdaaec5b360ac5365fc76107ee17e3533231ef80fab71f1455d690c80b950c38e0aeee480d5b0869bdbf73fc

  • SSDEEP

    6144:4mRcsQAKqVYM8AFtE3GK9U5lB88PFdvOGa7XDdK:lRcnYlRFjn8ebOG6B

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

secur3.duckdns.org:57788

127.0.0.1:57788

Mutex

24bcb08e-b9d9-4fab-833c-942bd08a17be

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2023-05-05T14:17:00.693036336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    57788

  • 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

    24bcb08e-b9d9-4fab-833c-942bd08a17be

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    secur3.duckdns.org

  • primary_dns_server

  • 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 NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\07d9eeffaac90b7fcd1bf8b3930a2044.exe
    "C:\Users\Admin\AppData\Local\Temp\07d9eeffaac90b7fcd1bf8b3930a2044.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2196-234-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2196-239-0x0000000077342000-0x0000000077343000-memory.dmp

    Filesize

    4KB

  • memory/2196-240-0x0000000000B40000-0x0000000000B41000-memory.dmp

    Filesize

    4KB

  • memory/2196-241-0x0000000074430000-0x00000000749E1000-memory.dmp

    Filesize

    5.7MB

  • memory/2196-243-0x0000000002910000-0x0000000002920000-memory.dmp

    Filesize

    64KB

  • memory/2196-248-0x0000000074430000-0x00000000749E1000-memory.dmp

    Filesize

    5.7MB

  • memory/2196-242-0x0000000074430000-0x00000000749E1000-memory.dmp

    Filesize

    5.7MB

  • memory/2600-187-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-151-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-143-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-144-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-145-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-146-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-195-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-149-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-152-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-153-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-156-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-158-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-160-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-164-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-162-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-167-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-169-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-171-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-173-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-175-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-177-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-179-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-184-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-185-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-181-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-197-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-193-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-191-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-189-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-141-0x0000000074F90000-0x00000000750ED000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-139-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-199-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-201-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-204-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-208-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-209-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-210-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-211-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-212-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-214-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-215-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-216-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-217-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-218-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-219-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-220-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-221-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-222-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-223-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-224-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-225-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-226-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-227-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2600-136-0x0000000002220000-0x0000000002221000-memory.dmp

    Filesize

    4KB

  • memory/2600-135-0x0000000077342000-0x0000000077343000-memory.dmp

    Filesize

    4KB

  • memory/2600-233-0x0000000002290000-0x0000000002293000-memory.dmp

    Filesize

    12KB

  • memory/2600-235-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2600-236-0x0000000074F90000-0x00000000750ED000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-238-0x0000000002290000-0x0000000002293000-memory.dmp

    Filesize

    12KB