Overview

overview

10

Static

static

3

vjustca.exe

windows7-x64

10

vjustca.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    vjustca.exe

  • Size

    317KB

  • Sample

    230610-kn98yafb7x

  • MD5

    d4ed05679b3f645ad94aeb76a1d9f512

  • SHA1

    97820f13684b077cc511c5f9f0bb9072561a05ba

  • SHA256

    6a782c68b798d60b57784b764fe4e29c1c2b373d1c3fb7acb9efaab9144af081

  • SHA512

    500764d55297781075febc9ef44507c7ff8d7b44af7a408694f6745ed3d2837bb42cae72129d0735eb891c1265c5323d0292576593f56e59318869a0434f83a6

  • SSDEEP

    6144:CjRfbsw9j74aiGZcpFpD2+iNoKZsy8WU7g/ke2FYD5Fj1:5wl/sLDrimKh8WUkP2Fg

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

justkowir.duckdns.org:8550

Mutex

513a9907-f4ca-4a36-8f25-fcb7088c00a5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    justkowir.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-01-03T15:53:14.690945336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8550

  • 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

    513a9907-f4ca-4a36-8f25-fcb7088c00a5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    justkowir.duckdns.org

  • 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

Targets

    • Target

      vjustca.exe

    • Size

      317KB

    • MD5

      d4ed05679b3f645ad94aeb76a1d9f512

    • SHA1

      97820f13684b077cc511c5f9f0bb9072561a05ba

    • SHA256

      6a782c68b798d60b57784b764fe4e29c1c2b373d1c3fb7acb9efaab9144af081

    • SHA512

      500764d55297781075febc9ef44507c7ff8d7b44af7a408694f6745ed3d2837bb42cae72129d0735eb891c1265c5323d0292576593f56e59318869a0434f83a6

    • SSDEEP

      6144:CjRfbsw9j74aiGZcpFpD2+iNoKZsy8WU7g/ke2FYD5Fj1:5wl/sLDrimKh8WUkP2Fg

    Score
    10/10
    nanocoreevasionkeyloggerspywarestealertrojan

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Checks computer location settings

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

    • Executes dropped EXE

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks