Analysis

  • max time kernel
    152s
  • max time network
    181s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 18:41

General

  • Target

    PROOF OF PAYMENT.exe

  • Size

    1.4MB

  • MD5

    9a077bd0268cea0a1eea13d7ff75a691

  • SHA1

    a4f20bd9e3083afb7dd60d5b06436075591e6619

  • SHA256

    522eeb43150a93e0dd1308403baf27e10ca4042330e6405e87913683f3f6a67a

  • SHA512

    0165b5e0e41be712ea3ee677cd860488c7154d5bd070f375c4cba78b429921254aae97adc3c4431a1d6f7a0086b0b69bb4707f3d481b0004d0d07fbdb1ebaadb

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

antonlmcmotor.ddns.net:3190

Mutex

262bd9a6-fed5-40b1-be60-47588f2277bb

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    antonlmcmotor.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-06T10:01:36.466293536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3190

  • default_group

    2020 reformat

  • 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

    262bd9a6-fed5-40b1-be60-47588f2277bb

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    antonlmcmotor.ddns.net

  • 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.

  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.exe
    "C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1944

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1728-54-0x0000000075AE1000-0x0000000075AE3000-memory.dmp
    Filesize

    8KB

  • memory/1728-64-0x0000000000DF0000-0x0000000000E56000-memory.dmp
    Filesize

    408KB

  • memory/1728-65-0x00000000028F0000-0x0000000002956000-memory.dmp
    Filesize

    408KB

  • memory/1944-55-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1944-57-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1944-62-0x000000000041E792-mapping.dmp
  • memory/1944-63-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1944-66-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1944-68-0x00000000747E0000-0x0000000074D8B000-memory.dmp
    Filesize

    5.7MB

  • memory/1944-69-0x0000000002146000-0x0000000002157000-memory.dmp
    Filesize

    68KB