Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    06/01/2021, 16:09

General

  • Target
    DES_ Holdings Ltd - products listing.exe
  • Size 1019KB
  • Sample210106-glgrv7peks
  • SHA256 9fd3eec622da8536e22c164bbd05d80dada1003fadd07fd4800ced6c0579812c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • 212.83.46.26:4021

  • 127.0.0.1:4021

Mutex
  • 3b0a05ab-e8be-49ea-960f-63681280e339

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-10-18T08:47:47.300087736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4021

  • 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

    3b0a05ab-e8be-49ea-960f-63681280e339

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    212.83.46.26

  • 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
  • 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 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DES_ Holdings Ltd - products listing.exe
    "C:\Users\Admin\AppData\Local\Temp\DES_ Holdings Ltd - products listing.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:60
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UgJYJdoaOfKgTb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79F3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2688
    • C:\Users\Admin\AppData\Local\Temp\DES_ Holdings Ltd - products listing.exe
      "C:\Users\Admin\AppData\Local\Temp\DES_ Holdings Ltd - products listing.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1180

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/60-11-0x0000000005C20000-0x0000000005C88000-memory.dmp

        memory/60-6-0x00000000054B0000-0x00000000054B1000-memory.dmp

        memory/60-7-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

        memory/60-8-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

        memory/60-9-0x00000000050F0000-0x00000000050F1000-memory.dmp

        memory/60-10-0x0000000004E20000-0x0000000004E37000-memory.dmp

        memory/60-2-0x0000000073AD0000-0x00000000741BE000-memory.dmp

        memory/60-3-0x00000000004D0000-0x00000000004D1000-memory.dmp

        memory/60-5-0x0000000004E50000-0x0000000004E51000-memory.dmp

        memory/1180-14-0x0000000000400000-0x0000000000438000-memory.dmp

        memory/1180-17-0x0000000073AD0000-0x00000000741BE000-memory.dmp

        memory/1180-24-0x0000000005AC0000-0x0000000005AC5000-memory.dmp

        memory/1180-25-0x0000000005CA0000-0x0000000005CB9000-memory.dmp

        memory/1180-26-0x00000000064C0000-0x00000000064C3000-memory.dmp