Analysis

  • max time kernel
    47s
  • max time network
    160s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    31/08/2021, 17:06

General

  • Target
    3e6ff8849af4127b96ed0f348439ac6c.exe
  • Size 1.1MB
  • Sample210831-ad5jee2dls
  • SHA256 48b183c97788bcb734dfef7c34c8e85c68be28730ebc19ab3a66ac6294412c02
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • newmeforever.3utilities.com:83

  • newmeforever12.3utilities.com:83

Mutex
  • 42fc7104-2795-42db-8417-dc7142ab8b68

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    newmeforever12.3utilities.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-05-30T10:40:20.976483536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    83

  • default_group

    NEW ME

  • 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

    42fc7104-2795-42db-8417-dc7142ab8b68

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newmeforever.3utilities.com

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e6ff8849af4127b96ed0f348439ac6c.exe
    "C:\Users\Admin\AppData\Local\Temp\3e6ff8849af4127b96ed0f348439ac6c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
        PID:1304
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1344

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/1344-116-0x0000000000400000-0x000000000048C000-memory.dmp

          memory/1344-118-0x0000000002E30000-0x0000000002E31000-memory.dmp

          memory/1344-119-0x0000000002E31000-0x0000000002E32000-memory.dmp

          memory/3016-114-0x0000000002790000-0x0000000002791000-memory.dmp

          memory/3016-115-0x0000000002791000-0x0000000002792000-memory.dmp