Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    12-10-2021 07:46

General

  • Target

    COMPANY PROFILE AND PRODUCT DETAILS.exe

  • Size

    1.3MB

  • MD5

    6e8422cff134a8555f61ef0d739b75ac

  • SHA1

    a12969dc92814fc8ef583280b227e5cb855881f2

  • SHA256

    d1ae10fa2fb16503171022a85d2f104d50c56971455762df22d63ca284fa19e6

  • SHA512

    1ea46be3b365b3eb763a6febcd38befbac2565419859ef4255bc02abbf1fba650cf035a95b2f025e4f8cb70bda3e86fa8762d196e7cb099356b3d82b4579ecf7

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

apaduckdns.duckdns.org:54984

172.111.250.107:54984

Mutex

8fa6609b-cd9c-498b-823e-04cd8e10bbc4

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    172.111.250.107

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-08-09T12:26:00.965163036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54984

  • default_group

    NONNYCRYPTER

  • 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

    8fa6609b-cd9c-498b-823e-04cd8e10bbc4

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    apaduckdns.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

  • NanoCore

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

  • Drops startup file 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\COMPANY PROFILE AND PRODUCT DETAILS.exe
    "C:\Users\Admin\AppData\Local\Temp\COMPANY PROFILE AND PRODUCT DETAILS.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegSvcs.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:752

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/752-54-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/752-55-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/752-60-0x000000000041E792-mapping.dmp

  • memory/752-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/752-62-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/752-66-0x0000000000B20000-0x0000000000B21000-memory.dmp

    Filesize

    4KB

  • memory/752-67-0x0000000000B21000-0x0000000000B22000-memory.dmp

    Filesize

    4KB

  • memory/752-68-0x0000000000B26000-0x0000000000B37000-memory.dmp

    Filesize

    68KB

  • memory/1424-53-0x0000000076201000-0x0000000076203000-memory.dmp

    Filesize

    8KB

  • memory/1424-64-0x0000000000350000-0x0000000000383000-memory.dmp

    Filesize

    204KB

  • memory/1424-65-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB