Overview

overview

10

Static

static

05eb5d5bcd...06.exe

windows7-x64

8

05eb5d5bcd...06.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    05eb5d5bcd4c6af5626eb67b20323c8cc179ccf26a006.exe

  • Size

    2.1MB

  • Sample

    221027-hmgtwsbdbm

  • MD5

    3cd3653500f1ed1e3e9c5042c86e473d

  • SHA1

    f2ede83868bb50ee9494c9d5da807f79e084542f

  • SHA256

    05eb5d5bcd4c6af5626eb67b20323c8cc179ccf26a00670b352494b50e19f1a7

  • SHA512

    7fa04ab572991bf53e1949a5cd871d0b898040b5ba80cd5dd2c6e2ed0d608a1709918bd2430e4c90113288628ed72c94a236177785a0580ff6dbd6b28f643c6d

  • SSDEEP

    49152:4yaXo2pFt5El2z/EaYo5Me034SJRxi0fT7SEfxmhnlyIgdDG6/:4tY2pF1zsPjNNvx4n8S6/

Score
10/10
agentteslananocorecollectionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

37.139.128.94:6000

Mutex

407839af-e81b-4512-9071-482887f971db

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-08-07T10:00:20.190590236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    6000

  • default_group

    client

  • 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

    407839af-e81b-4512-9071-482887f971db

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    37.139.128.94

  • primary_dns_server

    8.8.8.8

  • 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

Extracted

Family

agenttesla

C2

http://107.189.4.253/boots/inc/a155b6dca5b411.php

Targets

    • Target

      05eb5d5bcd4c6af5626eb67b20323c8cc179ccf26a006.exe

    • Size

      2.1MB

    • MD5

      3cd3653500f1ed1e3e9c5042c86e473d

    • SHA1

      f2ede83868bb50ee9494c9d5da807f79e084542f

    • SHA256

      05eb5d5bcd4c6af5626eb67b20323c8cc179ccf26a00670b352494b50e19f1a7

    • SHA512

      7fa04ab572991bf53e1949a5cd871d0b898040b5ba80cd5dd2c6e2ed0d608a1709918bd2430e4c90113288628ed72c94a236177785a0580ff6dbd6b28f643c6d

    • SSDEEP

      49152:4yaXo2pFt5El2z/EaYo5Me034SJRxi0fT7SEfxmhnlyIgdDG6/:4tY2pF1zsPjNNvx4n8S6/

    Score
    10/10
    persistenceagentteslananocorecollectionkeyloggerspywarestealertrojan

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

      keyloggertrojanstealerspywareagenttesla

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Accesses Microsoft Outlook profiles

      collection

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks