General

  • Target

    672c52fb6631db0e7e6e26662c749320598ee61a74378544a4381bc61905cacaN.exe

  • Size

    1.0MB

  • Sample

    250212-w73traspcv

  • MD5

    3802a90df22e10c7903044d7a7c4f440

  • SHA1

    0e570c739ed2633c0a5c09b15517e22427f280a9

  • SHA256

    672c52fb6631db0e7e6e26662c749320598ee61a74378544a4381bc61905caca

  • SHA512

    bb04f67c0d7dcec86e204147509df83e477345835a4a99f79d7a6971fcdc4a3a021525253c665110a58fdfd7674e0048aa2b8648680fd43b8800e8a3bc6aea83

  • SSDEEP

    24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/2:Ur9gNGKXYD+naGEsBXUv66k8o4yp5w2

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

testwork.kozow.com:8906

Mutex

bd6fc7b5-d48b-4e23-98f7-784bd3ef305c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    testwork.kozow.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-02-16T16:47:25.218235636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8906

  • default_group

    star

  • 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

    bd6fc7b5-d48b-4e23-98f7-784bd3ef305c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    testwork.kozow.com

  • 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

      672c52fb6631db0e7e6e26662c749320598ee61a74378544a4381bc61905cacaN.exe

    • Size

      1.0MB

    • MD5

      3802a90df22e10c7903044d7a7c4f440

    • SHA1

      0e570c739ed2633c0a5c09b15517e22427f280a9

    • SHA256

      672c52fb6631db0e7e6e26662c749320598ee61a74378544a4381bc61905caca

    • SHA512

      bb04f67c0d7dcec86e204147509df83e477345835a4a99f79d7a6971fcdc4a3a021525253c665110a58fdfd7674e0048aa2b8648680fd43b8800e8a3bc6aea83

    • SSDEEP

      24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/2:Ur9gNGKXYD+naGEsBXUv66k8o4yp5w2

    • NanoCore

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

    • Nanocore family

    • Downloads MZ/PE file

    • Drops startup file

    • Checks whether UAC is enabled

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks