General

  • Target

    4635920e78112660335f3ee1a05290b0fc174787a0e4532a029983e02179ad0bexe_JC.exe

  • Size

    4.1MB

  • Sample

    231005-vd9vjaeg95

  • MD5

    88b17e26ef2c53627314448b4894bb9a

  • SHA1

    e444ca1f1c3a1bc003e9e03f5dbcc3e88400e7fd

  • SHA256

    4635920e78112660335f3ee1a05290b0fc174787a0e4532a029983e02179ad0b

  • SHA512

    f113b2fc5f68a86c94931140c22e3557ee15c75ad21734015bd93ddc9553169a926374d721b083161995573ab34651ea6fec5d7330704f0bb432f0f0aa81c6c9

  • SSDEEP

    98304:F/PnaasivP4Af1rumiBWgd5m+Qfr7fBZiVIrB6:FHnPgAf1r2WgbAtd

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

backupcraft.ddns.net:54984

127.0.0.1:54984

Mutex

96156e42-3e88-498a-83b0-34f138a87549

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65541

  • build_time

    2023-06-29T18:37:26.433436736Z

  • 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

    1.0485763e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    96156e42-3e88-498a-83b0-34f138a87549

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    backupcraft.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • 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

1.4.1

Botnet

Slave

C2

backupcraft.ddns.net:4782

Mutex

fbfe67fd-8086-4852-908c-75959d17c0c7

Attributes
  • encryption_key

    6550C5FD133683B3330870C778B7DB73E923F472

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family

warzonerat

C2

supercraft123.serveminecraft.net:5200

Targets

    • Target

      4635920e78112660335f3ee1a05290b0fc174787a0e4532a029983e02179ad0bexe_JC.exe

    • Size

      4.1MB

    • MD5

      88b17e26ef2c53627314448b4894bb9a

    • SHA1

      e444ca1f1c3a1bc003e9e03f5dbcc3e88400e7fd

    • SHA256

      4635920e78112660335f3ee1a05290b0fc174787a0e4532a029983e02179ad0b

    • SHA512

      f113b2fc5f68a86c94931140c22e3557ee15c75ad21734015bd93ddc9553169a926374d721b083161995573ab34651ea6fec5d7330704f0bb432f0f0aa81c6c9

    • SSDEEP

      98304:F/PnaasivP4Af1rumiBWgd5m+Qfr7fBZiVIrB6:FHnPgAf1r2WgbAtd

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Tasks