Overview

overview

10

Static

static

1

56333ebe0e...1f.exe

windows7-x64

10

56333ebe0e...1f.exe

windows10-2004-x64

10

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General

  • Target

    56333ebe0e71a128151a373386f152598dfac647a0f9c7c6cf6d48c8e2d6081f

  • Size

    4.3MB

  • Sample

    220725-fn5w1afhbq

  • MD5

    5b2f4e07e883c0b165daaba2127a589f

  • SHA1

    c9edf782418140d7720f58d996dbcaeec965ee50

  • SHA256

    56333ebe0e71a128151a373386f152598dfac647a0f9c7c6cf6d48c8e2d6081f

  • SHA512

    80be5d187ad54b8396fab7045bc7f15f1eb1434bfa2e30707b4f4b5e59548039f2ee2cc8f6b4f7edde01bfd680306fcd875bf653be8b88c6d67bd6fb26e84010

Score
10/10
nanocorequasarpublicevasionkeyloggerpersistencespywarestealersuricatatrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

109.230.215.181:1604

127.0.0.1:1604
Mutex

7fa6e9c8-20ea-4047-9f02-2251015e4ea4

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-03-10T10:37:21.189476636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1604

  • default_group

    crypt authorized

  • 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

    7fa6e9c8-20ea-4047-9f02-2251015e4ea4

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    109.230.215.181

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Extracted

Family

quasar

Version

1.4.0.0

Botnet

public

C2

109.230.215.181:4782

Mutex

wrZ9bZkif6pZsmpibj

Attributes
  • encryption_key

    OAlqwcOC5GAUaDQi56x4

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    RDPBlox Agent

  • subdirectory

    SubDir

Targets

    • Target

      56333ebe0e71a128151a373386f152598dfac647a0f9c7c6cf6d48c8e2d6081f

    • Size

      4.3MB

    • MD5

      5b2f4e07e883c0b165daaba2127a589f

    • SHA1

      c9edf782418140d7720f58d996dbcaeec965ee50

    • SHA256

      56333ebe0e71a128151a373386f152598dfac647a0f9c7c6cf6d48c8e2d6081f

    • SHA512

      80be5d187ad54b8396fab7045bc7f15f1eb1434bfa2e30707b4f4b5e59548039f2ee2cc8f6b4f7edde01bfd680306fcd875bf653be8b88c6d67bd6fb26e84010

    Score
    10/10
    nanocorequasarpublicevasionkeyloggerpersistencespywarestealersuricatatrojan

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • suricata: ET MALWARE Common RAT Connectivity Check Observed

      suricata: ET MALWARE Common RAT Connectivity Check Observed

      suricata

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks