Overview

overview

10

Static

static

PR119042344RO.exe

windows7_x64

10

PR119042344RO.exe

windows10_x64

10

Analysis

  • max time kernel
    111s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    26/06/2020, 08:24

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General

  • Target
    PR119042344RO.exe
  • Size 341KB
  • Sample200626-bplsmav7te
  • SHA256 222fc47d0caeb4487c3afdebf79b09ee30fcbc9cc5342ba4708516edcea97514
  • MD5 SHA1 SHA512
Score
10/10
keyloggertrojanstealerspywarenanocoreevasion

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • 185.140.53.9:9124

Mutex

  • abee0a6e-9120-44aa-a70c-1e32c9a07128

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-04-05T19:51:22.629259936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    9124

  • default_group

    Wish

  • 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

    abee0a6e-9120-44aa-a70c-1e32c9a07128

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    185.140.53.9

  • 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.

    keyloggertrojanstealerspywarenanocore
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PR119042344RO.exe
    "C:\Users\Admin\AppData\Local\Temp\PR119042344RO.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    PID:896
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bKvykEIiP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD799.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1664
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "{path}"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1828

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1828-2-0x0000000000400000-0x0000000000438000-memory.dmp
        Download

        memory/1828-4-0x0000000000400000-0x0000000000438000-memory.dmp
        Download

        memory/1828-5-0x0000000000400000-0x0000000000438000-memory.dmp
        Download