Overview

overview

10

Static

static

inquiry.exe

windows7_x64

10

inquiry.exe

windows10_x64

10

Analysis

  • max time kernel
    77s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    31/08/2020, 09:21

Sharing

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General

  • Target
    inquiry.exe
  • Size 1.0MB
  • Sample200831-754eft1gxs
  • SHA256 fddbfcd2f4497ffd75f9f1be1619ba4cf5a5ca99df6eb888216e2e0f2bec7990
  • MD5 SHA1 SHA512
Score
10/10
upxkeyloggertrojanstealerspywarenanocorepersistenceevasion

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • 185.140.53.178:1985

Mutex

  • 653b6623-61f4-4655-a6b3-c3da7a5b4513

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-06-01T00:57:22.057118636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1985

  • default_group

    ebuk nano

  • 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

    653b6623-61f4-4655-a6b3-c3da7a5b4513

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    185.140.53.178

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • 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
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Modifies data under HKEY_USERS 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\inquiry.exe
    "C:\Users\Admin\AppData\Local\Temp\inquiry.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:60
    • C:\Users\Admin\AppData\Local\Temp\inquiry.exe
      "C:\Users\Admin\AppData\Local\Temp\inquiry.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2348

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/60-0-0x0000000000400000-0x000000000050D000-memory.dmp
        Download

        memory/3064-1-0x0000000000400000-0x000000000047F000-memory.dmp
        Download

        memory/3064-3-0x0000000000400000-0x000000000047F000-memory.dmp
        Download

        memory/3064-4-0x0000000000400000-0x000000000047F000-memory.dmp
        Download

        memory/3064-5-0x0000000000970000-0x00000000009A8000-memory.dmp
        Download

        memory/3064-6-0x00000000009D2000-0x00000000009D3000-memory.dmp
        Download