Analysis

  • max time kernel
    147s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-10-2024 18:59

General

  • Target

    1929bf695c81cb4c4b39e05929f558907f532931b322b9e2d72f1aa7ffcf22e0.exe

  • Size

    607KB

  • MD5

    c77d7b80c1b61a649682b28b9daf062f

  • SHA1

    15292367af2a8a7152cc0d3f9ca5b0fb254945d8

  • SHA256

    1929bf695c81cb4c4b39e05929f558907f532931b322b9e2d72f1aa7ffcf22e0

  • SHA512

    a9d4883e916bc2a3a976bc079b0a6a7e0348994e647e69b616c66858580b5a6cdafc12c4b37e4d74ff1239def0610369260b62562ebf46c2fe393ca163152258

  • SSDEEP

    12288:yO8USvMEgLIVvX9I56tXHbYJY6XZ4SLagMHVzv3dxie6v4pb:1SvMrIVfjXHbYJDZagMHRvNxg4p

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

pnauco5.ddns.net:1664

Mutex

ac9038a0-8510-453c-acdb-295331cd9ea3

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    pnauco5.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-07-25T22:01:43.462334136Z

  • 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

    BLACK

  • 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

    ac9038a0-8510-453c-acdb-295331cd9ea3

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    pnauco5.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.

  • 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 5 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\1929bf695c81cb4c4b39e05929f558907f532931b322b9e2d72f1aa7ffcf22e0.exe
    "C:\Users\Admin\AppData\Local\Temp\1929bf695c81cb4c4b39e05929f558907f532931b322b9e2d72f1aa7ffcf22e0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3572
    • 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\1929bf695c81cb4c4b39e05929f558907f532931b322b9e2d72f1aa7ffcf22e0.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1552
    • C:\Users\Admin\AppData\Local\Temp\1929bf695c81cb4c4b39e05929f558907f532931b322b9e2d72f1aa7ffcf22e0.exe
      "C:\Users\Admin\AppData\Local\Temp\1929bf695c81cb4c4b39e05929f558907f532931b322b9e2d72f1aa7ffcf22e0.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:2708
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "LAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEF03.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4504
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "LAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF628.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_i1dsrrcw.ltc.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpEF03.tmp

    Filesize

    1KB

    MD5

    95e3066ddc2fed061dca521097dc62e4

    SHA1

    c9bf3bfd1354b0bafab6fee27d65515954df1928

    SHA256

    1b792865ef4d29bd28049c680c57059c16e799d503592f68d157653e08cf3754

    SHA512

    ae52d7a09309a749da98d4c1b9a7aabba2fc67456a3cac2534aa22371594d0d380203eb9eefe49ac2618fdd89b29c03fecc3b8fb133dfe39ebcdd6623d15fb6f

  • C:\Users\Admin\AppData\Local\Temp\tmpF628.tmp

    Filesize

    1KB

    MD5

    6b30dba7972c92c9a1b881e88c108b15

    SHA1

    f76207985cc5a1f70edb2fb5bd45678f195a4564

    SHA256

    578f5b0ff051f02f8e0a67fc3424dad554fa9489875475ea624fbb63eabfcbf7

    SHA512

    e3dd368937f863cb07453de12173580fb63b8d3983db7119c24860f227c89ded76401c47607f5b1134d215d46fe2b40d4bc3d7299374f1e8abecdeaefc7b9099

  • memory/1552-56-0x0000000006490000-0x00000000064AE000-memory.dmp

    Filesize

    120KB

  • memory/1552-58-0x0000000007860000-0x0000000007EDA000-memory.dmp

    Filesize

    6.5MB

  • memory/1552-66-0x0000000007540000-0x0000000007548000-memory.dmp

    Filesize

    32KB

  • memory/1552-35-0x0000000005A10000-0x0000000005D64000-memory.dmp

    Filesize

    3.3MB

  • memory/1552-65-0x0000000007560000-0x000000000757A000-memory.dmp

    Filesize

    104KB

  • memory/1552-64-0x0000000007460000-0x0000000007474000-memory.dmp

    Filesize

    80KB

  • memory/1552-63-0x0000000007450000-0x000000000745E000-memory.dmp

    Filesize

    56KB

  • memory/1552-62-0x0000000007420000-0x0000000007431000-memory.dmp

    Filesize

    68KB

  • memory/1552-61-0x00000000074A0000-0x0000000007536000-memory.dmp

    Filesize

    600KB

  • memory/1552-60-0x0000000007290000-0x000000000729A000-memory.dmp

    Filesize

    40KB

  • memory/1552-59-0x0000000007220000-0x000000000723A000-memory.dmp

    Filesize

    104KB

  • memory/1552-43-0x0000000005ED0000-0x0000000005EEE000-memory.dmp

    Filesize

    120KB

  • memory/1552-15-0x0000000004950000-0x0000000004986000-memory.dmp

    Filesize

    216KB

  • memory/1552-18-0x0000000004FC0000-0x00000000055E8000-memory.dmp

    Filesize

    6.2MB

  • memory/1552-17-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1552-57-0x0000000006EE0000-0x0000000006F83000-memory.dmp

    Filesize

    652KB

  • memory/1552-22-0x0000000005760000-0x0000000005782000-memory.dmp

    Filesize

    136KB

  • memory/1552-30-0x00000000058A0000-0x0000000005906000-memory.dmp

    Filesize

    408KB

  • memory/1552-46-0x0000000070120000-0x000000007016C000-memory.dmp

    Filesize

    304KB

  • memory/1552-26-0x0000000005830000-0x0000000005896000-memory.dmp

    Filesize

    408KB

  • memory/1552-69-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1552-45-0x0000000006EA0000-0x0000000006ED2000-memory.dmp

    Filesize

    200KB

  • memory/1552-19-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1552-44-0x0000000005F10000-0x0000000005F5C000-memory.dmp

    Filesize

    304KB

  • memory/2708-16-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2708-13-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2708-41-0x0000000005F50000-0x0000000005F6E000-memory.dmp

    Filesize

    120KB

  • memory/2708-40-0x00000000050F0000-0x00000000050FA000-memory.dmp

    Filesize

    40KB

  • memory/2708-70-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2708-42-0x00000000052A0000-0x00000000052AA000-memory.dmp

    Filesize

    40KB

  • memory/2708-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3572-3-0x0000000004F10000-0x0000000004FA2000-memory.dmp

    Filesize

    584KB

  • memory/3572-4-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3572-1-0x00000000004B0000-0x000000000054E000-memory.dmp

    Filesize

    632KB

  • memory/3572-14-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3572-0-0x000000007460E000-0x000000007460F000-memory.dmp

    Filesize

    4KB

  • memory/3572-10-0x0000000006500000-0x000000000657A000-memory.dmp

    Filesize

    488KB

  • memory/3572-9-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3572-8-0x000000007460E000-0x000000007460F000-memory.dmp

    Filesize

    4KB

  • memory/3572-7-0x0000000005570000-0x0000000005582000-memory.dmp

    Filesize

    72KB

  • memory/3572-5-0x00000000050F0000-0x00000000050FA000-memory.dmp

    Filesize

    40KB

  • memory/3572-2-0x0000000005580000-0x0000000005B24000-memory.dmp

    Filesize

    5.6MB

  • memory/3572-6-0x00000000051A0000-0x000000000523C000-memory.dmp

    Filesize

    624KB