General

  • Target

    15ec22561736b55948ec07f3a637692c88632523e7dfb65579d0c461af3e432a

  • Size

    386KB

  • Sample

    220521-pbrchsfaa7

  • MD5

    7045383e78b73c0f619395bfe00196a6

  • SHA1

    d5040b647d2fcb0a1cc341ba032fd4f62a8509c5

  • SHA256

    15ec22561736b55948ec07f3a637692c88632523e7dfb65579d0c461af3e432a

  • SHA512

    0a81ded1676c131330a8065a3b658e14afe1a085a65119fa547ca6b91818081f7ca765f70da4c45001d5a2100bb4322c392f70f67203294aa8b86e5aaffcf0de

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

INDOMIE.LINKPC.NET:1818

185.140.53.9:1818

Mutex

c2760388-119a-4b64-9007-01bc88004481

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.140.53.9

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-19T16:48:01.198372836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1818

  • default_group

    INDOMIE

  • 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

    c2760388-119a-4b64-9007-01bc88004481

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    INDOMIE.LINKPC.NET

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      Revised PI.exe

    • Size

      443KB

    • MD5

      b33919e1a939a1e8c997242de2d596f9

    • SHA1

      919c28f5cfaa175f6a22524bb9a515623d24722e

    • SHA256

      6be9f9c1f3519811949e2b854e41cfce31e720a6ba2f9db9d7895383dcac794e

    • SHA512

      8d9fb6e908b2562cf6306fe23449c4f5c93ee2f22880cb58d519046a87f3ed77ee7bc8269645e2572734515d491f421714cb7b98b9b2dba50729278302be4bf9

    • 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.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Tasks