Analysis

  • max time kernel
    109s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-05-2024 21:49

General

  • Target

    67aa7f5ad1c018115c37aeb6692c1798a5a3c1537d033d53661d69c5c966633c.exe

  • Size

    926KB

  • MD5

    880896eba93484b79e8eae85e3f41ec1

  • SHA1

    42ec286e0f5260ba81a518109a1ac13daa90be0f

  • SHA256

    67aa7f5ad1c018115c37aeb6692c1798a5a3c1537d033d53661d69c5c966633c

  • SHA512

    8d62596a94403a85a74a890373e48ee75b351a67ef02dfd6f8da53bc6e1da6f8df62bfc11266df7f74ea583ebb0a1cb2dbde0123d71b19f8729127a8fd7f9d96

  • SSDEEP

    24576:Hrl6kD68JmloLQfgqu4Dij/f7HcAdmjKt0Okhm:Ll328U2kfc4Kf7HlF1

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

motherpure.duckdns.org:3920

185.214.10.57:3920

Mutex

bf795df6-2075-40d9-84eb-258bd0bbe097

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    185.214.10.57

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-02-22T15:40:23.303555136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3920

  • default_group

    MAY13

  • 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

    bf795df6-2075-40d9-84eb-258bd0bbe097

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    motherpure.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.

  • UPX dump on OEP (original entry point) 15 IoCs
  • UPX packed file 15 IoCs

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

  • AutoIT Executable 14 IoCs

    AutoIT scripts compiled to PE executables.

  • 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 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67aa7f5ad1c018115c37aeb6692c1798a5a3c1537d033d53661d69c5c966633c.exe
    "C:\Users\Admin\AppData\Local\Temp\67aa7f5ad1c018115c37aeb6692c1798a5a3c1537d033d53661d69c5c966633c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1656
    • 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:2352

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1656-28-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-31-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-24-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-5-0x0000000003BC0000-0x0000000003BC1000-memory.dmp

    Filesize

    4KB

  • memory/1656-16-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-30-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-0-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-17-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-2-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-1-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-29-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-18-0x0000000003BC0000-0x0000000003BC1000-memory.dmp

    Filesize

    4KB

  • memory/1656-27-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-26-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-25-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-22-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/1656-23-0x0000000000E20000-0x000000000101A000-memory.dmp

    Filesize

    2.0MB

  • memory/2352-12-0x00000000741F0000-0x00000000747A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2352-21-0x00000000741F0000-0x00000000747A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2352-20-0x00000000741F0000-0x00000000747A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2352-19-0x00000000741F2000-0x00000000741F3000-memory.dmp

    Filesize

    4KB

  • memory/2352-15-0x00000000741F0000-0x00000000747A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2352-13-0x00000000741F0000-0x00000000747A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2352-11-0x00000000741F2000-0x00000000741F3000-memory.dmp

    Filesize

    4KB

  • memory/2352-7-0x0000000000760000-0x0000000000798000-memory.dmp

    Filesize

    224KB