Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-01-2025 01:39

General

  • Target

    60864902ad948db63fe7d04e2d299ace93e989b95cac3ec8db0096b9705f3f4d.exe

  • Size

    416KB

  • MD5

    ad8510ee09068863597c43714c03d458

  • SHA1

    0ef4784eae0fc6ef6dfcec087cace35f32f4fee2

  • SHA256

    60864902ad948db63fe7d04e2d299ace93e989b95cac3ec8db0096b9705f3f4d

  • SHA512

    d9098101eb4f6e83e477465917f56df49792c9790e1f264b8b2aa223e3703a10c1f6c6ae7878f3958d074ee9660acee07185c95937114ba068fdf669ef7678df

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUg:ITNYrnE3bm/CiejewY5vl

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    178.32.224.116

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2018-07-28T12:59:38.488799236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    46218

  • default_group

    tourex

  • 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

    4af74541-e3f1-469c-8af7-efe4071b81cf

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    [email protected]

  • primary_dns_server

  • 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 1 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 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\60864902ad948db63fe7d04e2d299ace93e989b95cac3ec8db0096b9705f3f4d.exe
    "C:\Users\Admin\AppData\Local\Temp\60864902ad948db63fe7d04e2d299ace93e989b95cac3ec8db0096b9705f3f4d.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4420
    • C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
      "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2188
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
        3⤵
        • Checks whether UAC is enabled
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:4560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

    Filesize

    416KB

    MD5

    d362cf5d8681f41da6b4f59777b63131

    SHA1

    6fa4f60cab1e74c852d04630f8e694bfe4dd8cbb

    SHA256

    026d3555a46b729bc0dd3da3d510c5663d8a15ac4746239d118c8e8dc7a797c9

    SHA512

    53050682319171c6933a3ba174c742aa1c63560dd6f9a9857b45a2b8f1be875f5cab52cfbf6d2a9b48a255df4ba7a24077f845ac64eb04ed203dacaa3c55027f

  • memory/2188-35-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2188-33-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2188-22-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2188-20-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4420-5-0x0000000004B40000-0x0000000004B4A000-memory.dmp

    Filesize

    40KB

  • memory/4420-6-0x0000000005070000-0x00000000050AC000-memory.dmp

    Filesize

    240KB

  • memory/4420-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

    Filesize

    4KB

  • memory/4420-4-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4420-21-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4420-3-0x0000000004A80000-0x0000000004B12000-memory.dmp

    Filesize

    584KB

  • memory/4420-1-0x0000000000040000-0x00000000000AE000-memory.dmp

    Filesize

    440KB

  • memory/4420-2-0x0000000005150000-0x00000000056F4000-memory.dmp

    Filesize

    5.6MB

  • memory/4560-27-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4560-24-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/4560-28-0x00000000059A0000-0x0000000005A3C000-memory.dmp

    Filesize

    624KB

  • memory/4560-30-0x0000000005B60000-0x0000000005B6A000-memory.dmp

    Filesize

    40KB

  • memory/4560-31-0x0000000005DF0000-0x0000000005E0E000-memory.dmp

    Filesize

    120KB

  • memory/4560-32-0x0000000006870000-0x000000000687A000-memory.dmp

    Filesize

    40KB

  • memory/4560-25-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/4560-23-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/4560-36-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB