Analysis

  • max time kernel
    134s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-11-2024 01:04

General

  • Target

    50129f457a6d27972ba602a8e3eb1fef29e1bc9f7bc8eda34fc93b734593b170.exe

  • Size

    797KB

  • MD5

    d1f751f50be38431133c464db71bd107

  • SHA1

    88f9ae16f1c1690da3a11b75c73dfddd57eed352

  • SHA256

    50129f457a6d27972ba602a8e3eb1fef29e1bc9f7bc8eda34fc93b734593b170

  • SHA512

    76ca1fd81b70c4fc7f19d520abf50533f2884b569706c189a486ee5bc5d5be58ed93297573424cd4ec741d4b11787f0a8814727cc1225853537feb278a21593a

  • SSDEEP

    12288:a1AP1lqeixSQWj08orjBcXhiktRmoMQdnjq/xeZAPEtDXx1PpIyh:7lqel/4rjB3BoMQdnjq/MuEdPpvh

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

66.63.187.113:1664

Mutex

a376f716-2f77-4943-a431-3a3bcb53b7c0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    66.63.187.113

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-08-05T03:49:33.827385136Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1664

  • default_group

    CAT

  • 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

    a376f716-2f77-4943-a431-3a3bcb53b7c0

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    66.63.187.113

  • 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.

  • Nanocore family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50129f457a6d27972ba602a8e3eb1fef29e1bc9f7bc8eda34fc93b734593b170.exe
    "C:\Users\Admin\AppData\Local\Temp\50129f457a6d27972ba602a8e3eb1fef29e1bc9f7bc8eda34fc93b734593b170.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\50129f457a6d27972ba602a8e3eb1fef29e1bc9f7bc8eda34fc93b734593b170.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5008
    • C:\Users\Admin\AppData\Local\Temp\50129f457a6d27972ba602a8e3eb1fef29e1bc9f7bc8eda34fc93b734593b170.exe
      "C:\Users\Admin\AppData\Local\Temp\50129f457a6d27972ba602a8e3eb1fef29e1bc9f7bc8eda34fc93b734593b170.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:512
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "LAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB69E.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3940
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "LAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB73B.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\50129f457a6d27972ba602a8e3eb1fef29e1bc9f7bc8eda34fc93b734593b170.exe.log

    Filesize

    1KB

    MD5

    7cad59aef5a93f093b6ba494f13f796f

    SHA1

    3cef97b77939bfc06dfd3946fc1a8cd159f67100

    SHA256

    1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55

    SHA512

    8cedd03efec34c6226a01fd6b4831a689be16545ea6b849cd96f775e0722bfefd4b47f3dd8401d2080d341d4319f75995ece60de44352a1f86a2e5dc01e6210b

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5movuhct.jrd.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpB69E.tmp

    Filesize

    1KB

    MD5

    c1ff66cd764f8d80380c6bab86363f33

    SHA1

    2d2603281094b562847b3cd92825bc65e4fb1b86

    SHA256

    eb5aca7c63474694139081c86020981fc7c36ed289f5573686b1fe237ce94127

    SHA512

    7b4a4ca9cc396c1e197c2e2657fa306008a14851678069732d37ccf7b520d1bee9e4c86b7d75c34f8b8ee348fdb702e9753d0fef5b503ea017f60fd7c0eac144

  • C:\Users\Admin\AppData\Local\Temp\tmpB73B.tmp

    Filesize

    1KB

    MD5

    6b30dba7972c92c9a1b881e88c108b15

    SHA1

    f76207985cc5a1f70edb2fb5bd45678f195a4564

    SHA256

    578f5b0ff051f02f8e0a67fc3424dad554fa9489875475ea624fbb63eabfcbf7

    SHA512

    e3dd368937f863cb07453de12173580fb63b8d3983db7119c24860f227c89ded76401c47607f5b1134d215d46fe2b40d4bc3d7299374f1e8abecdeaefc7b9099

  • memory/512-58-0x0000000006F90000-0x0000000006FBE000-memory.dmp

    Filesize

    184KB

  • memory/512-15-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/512-53-0x0000000006F20000-0x0000000006F2E000-memory.dmp

    Filesize

    56KB

  • memory/512-54-0x0000000006F30000-0x0000000006F44000-memory.dmp

    Filesize

    80KB

  • memory/512-56-0x0000000006F50000-0x0000000006F64000-memory.dmp

    Filesize

    80KB

  • memory/512-57-0x0000000006F80000-0x0000000006F8E000-memory.dmp

    Filesize

    56KB

  • memory/512-51-0x0000000006F00000-0x0000000006F0E000-memory.dmp

    Filesize

    56KB

  • memory/512-59-0x0000000006FC0000-0x0000000006FD4000-memory.dmp

    Filesize

    80KB

  • memory/512-12-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/512-52-0x0000000006F10000-0x0000000006F22000-memory.dmp

    Filesize

    72KB

  • memory/512-49-0x0000000006EC0000-0x0000000006ED2000-memory.dmp

    Filesize

    72KB

  • memory/512-55-0x0000000006F40000-0x0000000006F50000-memory.dmp

    Filesize

    64KB

  • memory/512-50-0x0000000006ED0000-0x0000000006EEA000-memory.dmp

    Filesize

    104KB

  • memory/512-86-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/512-44-0x0000000006660000-0x000000000666A000-memory.dmp

    Filesize

    40KB

  • memory/512-43-0x0000000005890000-0x00000000058AE000-memory.dmp

    Filesize

    120KB

  • memory/512-42-0x0000000005650000-0x000000000565A000-memory.dmp

    Filesize

    40KB

  • memory/512-26-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/512-87-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/1868-16-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/1868-10-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/1868-1-0x0000000000700000-0x00000000007CE000-memory.dmp

    Filesize

    824KB

  • memory/1868-2-0x0000000005750000-0x0000000005CF4000-memory.dmp

    Filesize

    5.6MB

  • memory/1868-3-0x0000000005240000-0x00000000052D2000-memory.dmp

    Filesize

    584KB

  • memory/1868-4-0x0000000005D00000-0x0000000006054000-memory.dmp

    Filesize

    3.3MB

  • memory/1868-5-0x0000000005430000-0x000000000543A000-memory.dmp

    Filesize

    40KB

  • memory/1868-6-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/1868-7-0x0000000005610000-0x00000000056AC000-memory.dmp

    Filesize

    624KB

  • memory/1868-8-0x0000000006B10000-0x0000000006B2C000-memory.dmp

    Filesize

    112KB

  • memory/1868-9-0x00000000743EE000-0x00000000743EF000-memory.dmp

    Filesize

    4KB

  • memory/1868-0-0x00000000743EE000-0x00000000743EF000-memory.dmp

    Filesize

    4KB

  • memory/1868-11-0x0000000002A70000-0x0000000002AEA000-memory.dmp

    Filesize

    488KB

  • memory/5008-17-0x0000000004D60000-0x0000000004D96000-memory.dmp

    Filesize

    216KB

  • memory/5008-72-0x0000000007520000-0x00000000075C3000-memory.dmp

    Filesize

    652KB

  • memory/5008-46-0x0000000006340000-0x000000000638C000-memory.dmp

    Filesize

    304KB

  • memory/5008-45-0x0000000006310000-0x000000000632E000-memory.dmp

    Filesize

    120KB

  • memory/5008-19-0x0000000005440000-0x0000000005A68000-memory.dmp

    Filesize

    6.2MB

  • memory/5008-20-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/5008-18-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/5008-23-0x0000000005CB0000-0x0000000005D16000-memory.dmp

    Filesize

    408KB

  • memory/5008-60-0x00000000074E0000-0x0000000007512000-memory.dmp

    Filesize

    200KB

  • memory/5008-61-0x000000006FFE0000-0x000000007002C000-memory.dmp

    Filesize

    304KB

  • memory/5008-71-0x00000000068F0000-0x000000000690E000-memory.dmp

    Filesize

    120KB

  • memory/5008-22-0x0000000005C40000-0x0000000005CA6000-memory.dmp

    Filesize

    408KB

  • memory/5008-73-0x0000000007CA0000-0x000000000831A000-memory.dmp

    Filesize

    6.5MB

  • memory/5008-74-0x0000000007650000-0x000000000766A000-memory.dmp

    Filesize

    104KB

  • memory/5008-75-0x00000000076C0000-0x00000000076CA000-memory.dmp

    Filesize

    40KB

  • memory/5008-76-0x00000000078D0000-0x0000000007966000-memory.dmp

    Filesize

    600KB

  • memory/5008-77-0x0000000007850000-0x0000000007861000-memory.dmp

    Filesize

    68KB

  • memory/5008-79-0x0000000007880000-0x000000000788E000-memory.dmp

    Filesize

    56KB

  • memory/5008-80-0x0000000007890000-0x00000000078A4000-memory.dmp

    Filesize

    80KB

  • memory/5008-81-0x0000000007990000-0x00000000079AA000-memory.dmp

    Filesize

    104KB

  • memory/5008-82-0x0000000007970000-0x0000000007978000-memory.dmp

    Filesize

    32KB

  • memory/5008-85-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/5008-33-0x0000000005D20000-0x0000000006074000-memory.dmp

    Filesize

    3.3MB

  • memory/5008-21-0x0000000005AA0000-0x0000000005AC2000-memory.dmp

    Filesize

    136KB