Overview

overview

10

Static

static

INV_5678_78390.exe

windows7_x64

10

INV_5678_78390.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    07-07-2020 09:06

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General

  • Target

    INV_5678_78390.exe

  • Size

    805KB

  • MD5

    c8cb205521c57333657881084113989a

  • SHA1

    9b71480fb738fc0856081f9a356b13e174bb9bd1

  • SHA256

    3d59dd3243943e67cd98e96104d36c22925c7df238df3aeb804663893b102969

  • SHA512

    6a5d0314e83f8358a984906b646c3bd28a60326d5b347f2ce0659c02be8be065b5bc2cde9eb22a45ab9c1ee93a1704877cb334c0da70359804fd2e2f0943aef2

Score
10/10
evasiontrojankeyloggerstealerspywarenanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

urualla.duckdns.org:3999

urualla3.duckdns.org:3999
Mutex

d15035f6-d9d3-4e8b-9141-2ca7d3ee51bb

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    urualla3.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-11-15T10:43:13.463487336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3999

  • 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

    d15035f6-d9d3-4e8b-9141-2ca7d3ee51bb

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    urualla.duckdns.org

  • 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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

    keyloggertrojanstealerspywarenanocore
  • Executes dropped EXE 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • UPX packed file 3 IoCs

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

  • NTFS ADS 1 IoCs
  • Drops startup file 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious behavior: EnumeratesProcesses 2626 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INV_5678_78390.exe
    "C:\Users\Admin\AppData\Local\Temp\INV_5678_78390.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:736
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • NTFS ADS
      • Drops startup file
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Users\Admin\AppData\Roaming\startup\skype.exe
        "C:\Users\Admin\AppData\Roaming\startup\skype.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Executes dropped EXE
        • Suspicious behavior: MapViewOfSection
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1444
        • C:\Users\Admin\AppData\Roaming\startup\skype.exe
          "C:\Users\Admin\AppData\Roaming\startup\skype.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          • Executes dropped EXE
          • Suspicious behavior: GetForegroundWindowSpam
          • Checks whether UAC is enabled
          PID:1632
        • C:\Users\Admin\AppData\Roaming\startup\skype.exe
          "C:\Users\Admin\AppData\Roaming\startup\skype.exe" 2 1632 122218
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1828

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\startup\skype.exe
    Download Submit

  • C:\Users\Admin\AppData\Roaming\startup\skype.exe
    Download Submit

  • C:\Users\Admin\AppData\Roaming\startup\skype.exe
    Download Submit

  • C:\Users\Admin\AppData\Roaming\startup\skype.exe
    Download Submit

  • memory/1332-0-0x0000000000000000-mapping.dmp

    Download

  • memory/1444-1-0x0000000000000000-mapping.dmp

    Download

  • memory/1632-9-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

    Download

  • memory/1632-8-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

    Download

  • memory/1632-5-0x000000000047D4B0-mapping.dmp

    Download

  • memory/1632-4-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

    Download

  • memory/1632-11-0x0000000002150000-0x0000000002188000-memory.dmp

    Filesize

    224KB

    Download

  • memory/1632-12-0x0000000002222000-0x0000000002223000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1828-7-0x0000000000000000-mapping.dmp

    Download