General

  • Target

    f80bd53a58316d8fb43c24725c923ff2.exe

  • Size

    4.1MB

  • Sample

    231006-rrvqzseh73

  • MD5

    f80bd53a58316d8fb43c24725c923ff2

  • SHA1

    45c116a5e5e1680c47dd01605aa5d5033b436162

  • SHA256

    e844192fb4c52758db729e18e8898fe0921bdbe1e2d3ac3da6a6b5d2cedecb71

  • SHA512

    3a0f0dcba8a4cbe3a9185f8965a9201e0fdfd0179fb374fbb590bfb717d71ad6a102a890322ba69447bb7ba16f6dd583af9a92c673cb34a2ddef21876ecd3634

  • SSDEEP

    98304:FzEls77BGpj21HbwiWDO7PLgJSZdhmrJcgltWjW6ftjkn/0L4yGZ//2LXWAgUq:F17tGKHbIDO7DMorOqglAj3Sq4P2LmxU

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

fgudhiiugiufgifufgihdhuidfxgd.duckdns.org:54984

nojewsjwooujweq.duckdns.org:54984

Mutex

1da888af-eaab-4d01-bce7-7d314165f9b1

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    nojewsjwooujweq.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2023-07-18T15:13:25.638938236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54984

  • 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

    1da888af-eaab-4d01-bce7-7d314165f9b1

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    fgudhiiugiufgifufgihdhuidfxgd.duckdns.org

  • 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

warzonerat

C2

fgudhiiugiufgifufgihdhuidfxgd.duckdns.org:5200

Extracted

Family

quasar

Version

1.4.1

Botnet

Slave

C2

fgudhiiugiufgifufgihdhuidfxgd.duckdns.org:4782

Mutex

c01ef685-50b2-41b1-af94-aee5bc04e6fd

Attributes
  • encryption_key

    6550C5FD133683B3330870C778B7DB73E923F472

  • install_name

    svchost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svchost

  • subdirectory

    SubDir

Targets

    • Target

      f80bd53a58316d8fb43c24725c923ff2.exe

    • Size

      4.1MB

    • MD5

      f80bd53a58316d8fb43c24725c923ff2

    • SHA1

      45c116a5e5e1680c47dd01605aa5d5033b436162

    • SHA256

      e844192fb4c52758db729e18e8898fe0921bdbe1e2d3ac3da6a6b5d2cedecb71

    • SHA512

      3a0f0dcba8a4cbe3a9185f8965a9201e0fdfd0179fb374fbb590bfb717d71ad6a102a890322ba69447bb7ba16f6dd583af9a92c673cb34a2ddef21876ecd3634

    • SSDEEP

      98304:FzEls77BGpj21HbwiWDO7PLgJSZdhmrJcgltWjW6ftjkn/0L4yGZ//2LXWAgUq:F17tGKHbIDO7DMorOqglAj3Sq4P2LmxU

    • NanoCore

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

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • WarzoneRat, AveMaria

      WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

    • Warzone RAT payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Tasks