Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/06/2026, 12:48

General

  • Target
    c168.exe
  • Size 202KB
  • Sample260622-p14ddab19q
  • SHA256 c81438932535031fe3bd7911f3de2549747b140e2419753046d9f405772f12a7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • c168-ok.com:54984

  • c168okvip1.com:54984

Mutex
  • 4f062bc1-1048-440a-9663-e9d87ec47300

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    c168okvip1.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65508

  • build_time

    2026-04-03T14:29:54.487933636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    3979

  • connection_port

    54984

  • default_group

    C168

  • enable_debug_mode

    false

  • gc_threshold

    1.0485736e+07

  • keep_alive_timeout

    30027

  • keyboard_logging

    false

  • lan_timeout

    2497

  • max_packet_size

    1.048573e+07

  • mutex

    4f062bc1-1048-440a-9663-e9d87ec47300

  • mutex_timeout

    4976

  • prevent_system_sleep

    false

  • primary_connection_host

    c168-ok.com

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • restart_delay

    5033

  • run_delay

    24

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    4976

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    7976

Signatures

  • Family: NanoCore

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c168.exe
    "C:\Users\Admin\AppData\Local\Temp\c168.exe"
    1⤵
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:4544
  • C:\Program Files (x86)\DSL Host\dslhost.exe
    "C:\Program Files (x86)\DSL Host\dslhost.exe"
    1⤵
    • Executes dropped EXE
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4408

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        dslhost.exe

        • Path C:\Program Files (x86)\DSL Host\dslhost.exe
        • Size 202KB
        • SHA256 c81438932535031fe3bd7911f3de2549747b140e2419753046d9f405772f12a7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4408-7-0x0000000074890000-0x0000000074E41000-memory.dmp

        memory/4408-8-0x0000000074890000-0x0000000074E41000-memory.dmp

        memory/4408-10-0x0000000074890000-0x0000000074E41000-memory.dmp

        memory/4544-0-0x0000000000DE0000-0x0000000000DF0000-memory.dmp

        memory/4544-1-0x0000000074892000-0x0000000074894000-memory.dmp

        memory/4544-4-0x0000000074890000-0x0000000074E41000-memory.dmp

        memory/4544-11-0x0000000000DE0000-0x0000000000DF0000-memory.dmp

        memory/4544-12-0x0000000074892000-0x0000000074894000-memory.dmp

        memory/4544-13-0x0000000074890000-0x0000000074E41000-memory.dmp