Analysis

  • max time kernel
    119s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2024, 00:21

General

  • Target
    3035705002f46bc1ca67407006490b442059ea822d60c68b801b27c332638322.exe
  • Size 1.4MB
  • Sample241124-anfdfszrfp
  • SHA256 3035705002f46bc1ca67407006490b442059ea822d60c68b801b27c332638322
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • newme122.3utilities.com:8822

  • newme1122.3utilities.com:8822

Mutex
  • dcf3fee6-c103-45ee-a2f0-f8afaa78d1fe

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    newme1122.3utilities.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-31T13:00:17.372768836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8822

  • default_group

    A New TIme Has Come

  • 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

    dcf3fee6-c103-45ee-a2f0-f8afaa78d1fe

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newme122.3utilities.com

  • 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.

  • Nanocore family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3035705002f46bc1ca67407006490b442059ea822d60c68b801b27c332638322.exe
    "C:\Users\Admin\AppData\Local\Temp\3035705002f46bc1ca67407006490b442059ea822d60c68b801b27c332638322.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4556
    • C:\Users\Admin\04687118\vfqftjs.pif
      "C:\Users\Admin\04687118\vfqftjs.pif" benowsto.dso
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
        3⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1780

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        htdvvtoec.cpl

        • Path C:\Users\Admin\04687118\htdvvtoec.cpl
        • Size 57KB
        • SHA256 b7dcb66c6681eca56a487148033d518dcf6bbc9f8daeb36065a62300bbf6bf18
        • MD5 SHA1 SHA512 SSDEEP

        vfqftjs.pif

        • Path C:\Users\Admin\04687118\vfqftjs.pif
        • Size 758KB
        • SHA256 3a2b62144b3b6bc612770de7777233c96ea35e50e9fd7b0b482862825d728fdb
        • MD5 SHA1 SHA512 SSDEEP

        xekts.rve

        • Path C:\Users\Admin\04687118\xekts.rve
        • Size 1.0MB
        • SHA256 2afd228cda8311585ceada01a515dc32f21fc87e31b2c3eaec6fadb489779cbc
        • MD5 SHA1 SHA512 SSDEEP

        RegSvcs.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
        • Size 44KB
        • SHA256 2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390
        • MD5 SHA1 SHA512 SSDEEP

        memory/1780-74-0x0000000005B20000-0x0000000005B32000-memory.dmp

        memory/1780-77-0x00000000066C0000-0x00000000066CE000-memory.dmp

        memory/1780-67-0x0000000000C00000-0x0000000000C8C000-memory.dmp

        memory/1780-68-0x0000000005F10000-0x00000000064B4000-memory.dmp

        memory/1780-69-0x0000000005830000-0x00000000058C2000-memory.dmp

        memory/1780-70-0x0000000005A00000-0x0000000005A9C000-memory.dmp

        memory/1780-71-0x00000000058E0000-0x00000000058EA000-memory.dmp

        memory/1780-73-0x00000000059F0000-0x00000000059FA000-memory.dmp

        memory/1780-63-0x0000000000C00000-0x00000000010C4000-memory.dmp

        memory/1780-75-0x0000000005B60000-0x0000000005B7A000-memory.dmp

        memory/1780-76-0x0000000005B80000-0x0000000005B8E000-memory.dmp

        memory/1780-66-0x00000000743CE000-0x00000000743CF000-memory.dmp

        memory/1780-79-0x00000000066F0000-0x0000000006704000-memory.dmp

        memory/1780-78-0x00000000066D0000-0x00000000066DC000-memory.dmp

        memory/1780-80-0x0000000006700000-0x0000000006710000-memory.dmp

        memory/1780-81-0x0000000006720000-0x0000000006734000-memory.dmp

        memory/1780-82-0x0000000006730000-0x000000000673E000-memory.dmp

        memory/1780-83-0x0000000006740000-0x000000000675E000-memory.dmp

        memory/1780-84-0x0000000006770000-0x000000000677A000-memory.dmp

        memory/1780-85-0x00000000068C0000-0x00000000068EE000-memory.dmp

        memory/1780-86-0x0000000006900000-0x0000000006914000-memory.dmp

        memory/1780-87-0x00000000743CE000-0x00000000743CF000-memory.dmp