Overview

overview

10

Static

static

10

csrss.exe

windows7-x64

10

csrss.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    csrss.exe

  • Size

    202KB

  • Sample

    230609-v9hqxscg67

  • MD5

    2ce6e98a0aac5e85cabb80691bd8045d

  • SHA1

    a3ae338061777f3c1cb27d945111e62abc08105f

  • SHA256

    b8fd4f9178098236043e120cc9cc8b6f82843af99bcf9faeac975385a96a7ac1

  • SHA512

    8c2f736792fa2c8dbecd8465d21dff4d621d2445247a1abb0edba190a268c66a48a49670e150f0b23d5c492f3125f4d7a48e5dba5cca292930048f3b7f6b4ef0

  • SSDEEP

    3072:QzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HI6WuGTziui+IOIB3089u1L5WU0:QLV6Bta6dtJmakIM52NilOIW8ux0

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ratcentho.ddns.net:53896

ratcenthoo.ddns.net:53896
Mutex

c3ecc23e-d422-48ab-aba3-284b020fb031

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    ratcenthoo.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-10-24T17:06:49.017212336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    53896

  • 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

    c3ecc23e-d422-48ab-aba3-284b020fb031

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    ratcentho.ddns.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

      csrss.exe

    • Size

      202KB

    • MD5

      2ce6e98a0aac5e85cabb80691bd8045d

    • SHA1

      a3ae338061777f3c1cb27d945111e62abc08105f

    • SHA256

      b8fd4f9178098236043e120cc9cc8b6f82843af99bcf9faeac975385a96a7ac1

    • SHA512

      8c2f736792fa2c8dbecd8465d21dff4d621d2445247a1abb0edba190a268c66a48a49670e150f0b23d5c492f3125f4d7a48e5dba5cca292930048f3b7f6b4ef0

    • SSDEEP

      3072:QzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HI6WuGTziui+IOIB3089u1L5WU0:QLV6Bta6dtJmakIM52NilOIW8ux0

    Score
    10/10
    nanocoreevasionkeyloggerpersistencespywarestealertrojan
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks