General

  • Target

    t2h4k6l2m8_PAYMENT.exe.7z

  • Size

    397KB

  • Sample

    220915-xt5xmahfal

  • MD5

    635c81d69365466d0f4c4b0156d0dd7e

  • SHA1

    eae86033e08d27e6255c856a4def7bb7397285c2

  • SHA256

    8abb16cc2bd1fd7d238c641d0a738a4c06443f1fc681220b82d5d0b3349d16fe

  • SHA512

    73e52ede2c09b047138f1383b4e42d3d53201a50432c493b8f772d1f0c971757d3a58f2664c8dada6e6be8f4d075bd78b05e484c66693cc6b890ea0bf328bfab

  • SSDEEP

    12288:jmkZ18o8M5F2gK6s3Z5bsc/UA/uan2ukJHYTFp0q38:jmkZ1BD5ED71F/vuan2uyYTEa8

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

omaprilcode.duckdns.org:8090

Mutex

f8dffc54-5ec5-4013-9de8-d8d853682f44

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    omaprilcode.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-01-26T15:04:24.913843336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8090

  • default_group

    CODEDBASE

  • 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

    f8dffc54-5ec5-4013-9de8-d8d853682f44

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    omaprilcode.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

      t2h4k6l2m8_PAYMENT.exe

    • Size

      3.7MB

    • MD5

      798bb67d84ef291e5462e63a3e7ac280

    • SHA1

      21c217f0142b6b04ef954c910f1018a65b1f1f42

    • SHA256

      476ec2e1e154427dd5c174d02d8d3303933a6387b4f7217641468ae057a06257

    • SHA512

      ad1997eae69f4264e6be9072523d6aae488ec8b266d573646388eee32a4f55deffdee518afbcaa48e2443125cb34aac7d08b44d9190da07a841da1752dcf7e53

    • SSDEEP

      6144:84JzIARifSD+KsmBX6lJxxfiWCF352uOGJcxEbT7Bkj/aUqQEtFIDa2dQpwD4clD:8r

    • NanoCore

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

    • Windows security bypass

    • Checks computer location settings

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

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Disabling Security Tools

2
T1089

Modify Registry

3
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Tasks