Overview

overview

10

Static

static

1

TNOR_CYCLE...df.exe

windows7-x64

10

TNOR_CYCLE...df.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    TNOR_CYCLE_C2_220006954787_32106010359796_E_BDA_0_E_20221211_112633·pdf.exe
  • Size 308KB
  • Sample230222-psby6abd32
  • SHA256 472e9dd9be99ecc9a99dbed1014492ba726a6038a1e1b76621026d9b3b27fe89
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
guloadernanocoredownloaderkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • 7fxcmft-olcmjfjxdk.duckdns.org:34842

  • 127.0.0.1:34842

Mutex

  • 31075831-d2d6-4abb-ae19-60ce57b358c9

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2022-11-28T13:10:09.589620436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    34842

  • 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

    1.048576e+07

  • mutex

    31075831-d2d6-4abb-ae19-60ce57b358c9

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    7fxcmft-olcmjfjxdk.duckdns.org

  • primary_dns_server

    7fxcmft-olcmjfjxdk.duckdns.org

  • 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

Targets

    • Target
      TNOR_CYCLE_C2_220006954787_32106010359796_E_BDA_0_E_20221211_112633·pdf.exe
    • Size 308KB
    • SHA256 472e9dd9be99ecc9a99dbed1014492ba726a6038a1e1b76621026d9b3b27fe89
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    guloadernanocoredownloaderkeyloggerpersistencespywarestealertrojan

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks