Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 13:27

General

  • Target

    df47e7562f32da8b888e5cb845fb2266.exe

  • Size

    515KB

  • MD5

    df47e7562f32da8b888e5cb845fb2266

  • SHA1

    fb47457631b3b20d96aaa5193a16b3de38ec2513

  • SHA256

    57f48ea7a0d42eb885942cf6799fa081f3066671f0e9ed6a06c9888fd5810fc7

  • SHA512

    d739446320c72dbe5fe82e8751617c3ac87bce4b7ee77126fe40a2d48d4f654276429d0e546d9dea1b8c70787721086d5fa68fad75920e53a2574a72183dca6b

  • SSDEEP

    6144:YoxdFwXcPZHZbsXzLKYEp1T09G3lM35ug/cRlDlCmdrqfAWJMUwW1BaovkWCiiT:zwsj4zOJpReG34zUR+mJeJ3dloii

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ligmaballs.hopto.org:12741

Mutex

6d9d9b93-d40e-4856-8cd5-b616930460ed

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    ligmaballs.hopto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-05-09T09:34:45.180989036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    12741

  • 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

    1.0485778e+07

  • mutex

    6d9d9b93-d40e-4856-8cd5-b616930460ed

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    ligmaballs.hopto.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • 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.

  • 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 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df47e7562f32da8b888e5cb845fb2266.exe
    "C:\Users\Admin\AppData\Local\Temp\df47e7562f32da8b888e5cb845fb2266.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name '';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name '' -Value '"C:\Users\Admin\AppData\Local\CrashHandler.exe"' -PropertyType 'String'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2652
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2588-20-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2588-42-0x0000000004E80000-0x0000000004EC0000-memory.dmp

    Filesize

    256KB

  • memory/2588-24-0x0000000074860000-0x0000000074F4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2588-41-0x0000000004E80000-0x0000000004EC0000-memory.dmp

    Filesize

    256KB

  • memory/2588-40-0x0000000074860000-0x0000000074F4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2588-35-0x0000000004E80000-0x0000000004EC0000-memory.dmp

    Filesize

    256KB

  • memory/2588-32-0x00000000004A0000-0x00000000004AA000-memory.dmp

    Filesize

    40KB

  • memory/2588-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2588-10-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2588-12-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2588-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2588-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2588-18-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2588-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2588-31-0x0000000000480000-0x000000000049E000-memory.dmp

    Filesize

    120KB

  • memory/2588-30-0x0000000000470000-0x000000000047A000-memory.dmp

    Filesize

    40KB

  • memory/2588-25-0x0000000004E80000-0x0000000004EC0000-memory.dmp

    Filesize

    256KB

  • memory/2652-38-0x0000000002780000-0x00000000027C0000-memory.dmp

    Filesize

    256KB

  • memory/2652-34-0x00000000703E0000-0x000000007098B000-memory.dmp

    Filesize

    5.7MB

  • memory/2652-37-0x0000000002780000-0x00000000027C0000-memory.dmp

    Filesize

    256KB

  • memory/2652-36-0x0000000002780000-0x00000000027C0000-memory.dmp

    Filesize

    256KB

  • memory/2652-33-0x00000000703E0000-0x000000007098B000-memory.dmp

    Filesize

    5.7MB

  • memory/2652-39-0x00000000703E0000-0x000000007098B000-memory.dmp

    Filesize

    5.7MB

  • memory/2744-23-0x0000000074860000-0x0000000074F4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2744-5-0x0000000000880000-0x00000000008C0000-memory.dmp

    Filesize

    256KB

  • memory/2744-1-0x0000000074860000-0x0000000074F4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2744-6-0x0000000000C90000-0x0000000000CCC000-memory.dmp

    Filesize

    240KB

  • memory/2744-2-0x0000000000880000-0x00000000008C0000-memory.dmp

    Filesize

    256KB

  • memory/2744-4-0x0000000074860000-0x0000000074F4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2744-3-0x0000000000B70000-0x0000000000BAC000-memory.dmp

    Filesize

    240KB

  • memory/2744-0-0x0000000000CD0000-0x0000000000D58000-memory.dmp

    Filesize

    544KB