General

  • Target

    a88da432201bddf63c6468d7ab3cd2a69f29e222c6c7543fd8c4a0b6ae75f66a

  • Size

    350KB

  • Sample

    220521-bqf87sfcfm

  • MD5

    342a867124ef8c3cc7bf09d9c348736b

  • SHA1

    b1db64b5e8d7aeba685e01022367a99570a45921

  • SHA256

    a88da432201bddf63c6468d7ab3cd2a69f29e222c6c7543fd8c4a0b6ae75f66a

  • SHA512

    781e1927db33e2d20dc866bba8e4efb5dff74ec76356949548fa64068882c3c049f3e6c15753af914b0f000d9dc195fff3c0e851ed6aac92555ed750727dfdb4

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

masterwork.ydns.eu:2310

127.0.0.1:2310

Mutex

7dacfffd-e900-45d5-a878-74cb2c59d5c1

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-05-24T15:02:46.236911836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    2310

  • default_group

    Default

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    true

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    7dacfffd-e900-45d5-a878-74cb2c59d5c1

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    masterwork.ydns.eu

  • 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

      Incentive Doc.exe

    • Size

      391KB

    • MD5

      6b48de13978e73af6eafabeeefebab51

    • SHA1

      e7118497e55b204f7b1d4b5500a5ae332507d109

    • SHA256

      2a9cf930b5e11dee35842ff73179a0467f820a95e23560d774f7ea05111de351

    • SHA512

      40a76b85aa60446c1cf4beb31960bdf9269ef895500773f639afacf6a7ed909a564f9ea585d6e47fcab4ba64eac4894056913039ef2970260e2d4b67d9fe4f49

    • NanoCore

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

    • Checks computer location settings

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

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Tasks