Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-01-2024 21:31

General

  • Target

    70228020EFAF6AAD87454D706109984F.exe

  • Size

    611KB

  • MD5

    70228020efaf6aad87454d706109984f

  • SHA1

    a5da35544f66b83f13058a291c8c635e6acbd1f2

  • SHA256

    61e7d79adc7462d205a363d9a925f3cb994ffc42c1aad00edc034501b2be5a6d

  • SHA512

    0c51536b42c52ef9b64a6c3398c9a714b29efe579ca6f237f4923f94c12e28e8e974cdafb2b0de149dc36c5c003183133bc245691a7c9848467d85501d9334c0

  • SSDEEP

    12288:JZGoR7Xx3CGXZEnZ7fQ1NNIVKuYCCrNumCto06x4CAdcu75:JwoJx3CGX45fQ9OKCs2t1j7

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

tzitziklishop.ddns.net:1664

Mutex

a8149936-a86b-4f11-bfb6-a8924392ca9c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    tzitziklishop.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2023-10-20T07:52:30.532677436Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1664

  • default_group

    2024

  • 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

    a8149936-a86b-4f11-bfb6-a8924392ca9c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    tzitziklishop.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

Signatures

  • NanoCore

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70228020EFAF6AAD87454D706109984F.exe
    "C:\Users\Admin\AppData\Local\Temp\70228020EFAF6AAD87454D706109984F.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1856
    • C:\Users\Admin\AppData\Local\Temp\70228020EFAF6AAD87454D706109984F.exe
      "C:\Users\Admin\AppData\Local\Temp\70228020EFAF6AAD87454D706109984F.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4320
  • C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9E25.tmp"
    1⤵
    • Creates scheduled task(s)
    PID:5104
  • C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9DE6.tmp"
    1⤵
    • Creates scheduled task(s)
    PID:4496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1856-8-0x0000000006400000-0x0000000006472000-memory.dmp

    Filesize

    456KB

  • memory/1856-2-0x0000000005160000-0x0000000005704000-memory.dmp

    Filesize

    5.6MB

  • memory/1856-3-0x0000000004BB0000-0x0000000004C42000-memory.dmp

    Filesize

    584KB

  • memory/1856-0-0x0000000000090000-0x000000000012E000-memory.dmp

    Filesize

    632KB

  • memory/1856-4-0x0000000004B50000-0x0000000004B60000-memory.dmp

    Filesize

    64KB

  • memory/1856-5-0x0000000004B10000-0x0000000004B1A000-memory.dmp

    Filesize

    40KB

  • memory/1856-1-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/1856-7-0x0000000005ED0000-0x0000000005EDE000-memory.dmp

    Filesize

    56KB

  • memory/1856-9-0x0000000008A50000-0x0000000008AEC000-memory.dmp

    Filesize

    624KB

  • memory/1856-14-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/1856-6-0x0000000005EA0000-0x0000000005EBA000-memory.dmp

    Filesize

    104KB

  • memory/4320-40-0x0000000006E00000-0x0000000006E66000-memory.dmp

    Filesize

    408KB

  • memory/4320-34-0x0000000006B90000-0x0000000006BA4000-memory.dmp

    Filesize

    80KB

  • memory/4320-24-0x0000000005680000-0x000000000569E000-memory.dmp

    Filesize

    120KB

  • memory/4320-43-0x0000000005170000-0x0000000005180000-memory.dmp

    Filesize

    64KB

  • memory/4320-13-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/4320-15-0x0000000005170000-0x0000000005180000-memory.dmp

    Filesize

    64KB

  • memory/4320-37-0x0000000006BE0000-0x0000000006BEE000-memory.dmp

    Filesize

    56KB

  • memory/4320-39-0x0000000006C30000-0x0000000006C44000-memory.dmp

    Filesize

    80KB

  • memory/4320-38-0x0000000006BF0000-0x0000000006C1E000-memory.dmp

    Filesize

    184KB

  • memory/4320-36-0x0000000006BC0000-0x0000000006BD4000-memory.dmp

    Filesize

    80KB

  • memory/4320-35-0x0000000006BA0000-0x0000000006BB0000-memory.dmp

    Filesize

    64KB

  • memory/4320-25-0x00000000052F0000-0x00000000052FA000-memory.dmp

    Filesize

    40KB

  • memory/4320-33-0x0000000006B80000-0x0000000006B8E000-memory.dmp

    Filesize

    56KB

  • memory/4320-32-0x0000000006B70000-0x0000000006B7C000-memory.dmp

    Filesize

    48KB

  • memory/4320-31-0x0000000006B60000-0x0000000006B72000-memory.dmp

    Filesize

    72KB

  • memory/4320-30-0x0000000006B50000-0x0000000006B5E000-memory.dmp

    Filesize

    56KB

  • memory/4320-29-0x0000000006B20000-0x0000000006B3A000-memory.dmp

    Filesize

    104KB

  • memory/4320-28-0x0000000006B10000-0x0000000006B22000-memory.dmp

    Filesize

    72KB

  • memory/4320-10-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/4320-42-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/4320-23-0x00000000050D0000-0x00000000050DA000-memory.dmp

    Filesize

    40KB