Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-08-2022 13:41

General

  • Target

    SecuriteInfo.com.W32.AIDetectNet.01.20138.17534.exe

  • Size

    1.6MB

  • MD5

    1dbf5c63e3ad62d9ac02beef53f45252

  • SHA1

    319dc00025f5b761925bb58637e018dea5e4955c

  • SHA256

    a04b2767b571d53dc5d0978798888121b27d741f95a1f81febbcccc67bd65795

  • SHA512

    55175ae198357040555834a6c0e13c3fcb14f6a16090ba6713527e31ced47618a888a2469e021a217ff7c62f5147eca9e6082d7965ceb6b188ad7f9366269917

  • SSDEEP

    24576:6f0NGPPxja3fUEkdYYMw7IRXKehaJE8mIz82tykPMqdAAGzmMTqSH1mu:68N+M3k+B1AE1I5PMqZGzmMeQm

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

godisgood1.hopto.org:7712

185.225.73.164:7712

Mutex

bcd7727e-ef56-4958-8ed9-949f5c5ea8f6

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.225.73.164

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-05-24T09:37:49.129028236Z

  • 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

    7712

  • 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

    bcd7727e-ef56-4958-8ed9-949f5c5ea8f6

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    godisgood1.hopto.org

  • 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
  • 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 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.20138.17534.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.20138.17534.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:548
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3776
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DOS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA325.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4544
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DOS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA3C3.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2036

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA325.tmp

    Filesize

    1KB

    MD5

    576bbaf398045c3843d452ec83208236

    SHA1

    8ed5b2500ae7a40cbfa6e9018a1d1f1e70cb1374

    SHA256

    33c0c2d72fa383e5988ce640febc5ac6a2bd71d4ae660b99e52234952e17467b

    SHA512

    e7cc0ea0b351c6a8618e14f03c00e88ef83e2f169e0b4d66513f580f0a9352fbfe429e57186362b69407150d566bbdadca2f7b574fc748cc140b3249be67f96a

  • C:\Users\Admin\AppData\Local\Temp\tmpA3C3.tmp

    Filesize

    1KB

    MD5

    e380299eb53398115b7125b2b75c4798

    SHA1

    ee59b86ea0abf4097ff94bd940521c583803b036

    SHA256

    edb658b6577a80126eaacdf2a566755b63d7b2438fe0bcf3aea83930036811f3

    SHA512

    d9e3f3b1370fe4fce4a631a5d0669cef34bfe83dec146b606eff562c7cc450639304a732104f425a7ccfdded58064f28a98434a59ed8d93b595d64d1e1a2dde1

  • memory/548-132-0x0000000000910000-0x0000000000AB0000-memory.dmp

    Filesize

    1.6MB

  • memory/548-133-0x0000000005420000-0x00000000054BC000-memory.dmp

    Filesize

    624KB

  • memory/548-134-0x0000000005A70000-0x0000000006014000-memory.dmp

    Filesize

    5.6MB

  • memory/548-135-0x0000000008EE0000-0x0000000008F72000-memory.dmp

    Filesize

    584KB

  • memory/548-136-0x0000000008EC0000-0x0000000008ECA000-memory.dmp

    Filesize

    40KB

  • memory/2036-141-0x0000000000000000-mapping.dmp

  • memory/3776-137-0x0000000000000000-mapping.dmp

  • memory/3776-138-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3776-143-0x0000000006EC0000-0x0000000006F26000-memory.dmp

    Filesize

    408KB

  • memory/4544-139-0x0000000000000000-mapping.dmp