Analysis

  • max time kernel
    155s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/02/2024, 14:54

General

  • Target
    8f6fdc29008526290efbec29ac4ff319.exe
  • Size 1.2MB
  • Sample240204-r93vbacea6
  • SHA256 b702770f7ead5e8640aaf61311dc4fd7ec133b52151cc7ccefad57312da5e77e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • tony3311.ddns.net:10108

Mutex
  • 94803e62-45dd-47d9-9960-20dd767ecae3

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    tony3311.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-01-28T20:03:37.355466936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    10108

  • default_group

    APILA 2021

  • 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

    94803e62-45dd-47d9-9960-20dd767ecae3

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    tony3311.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.

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f6fdc29008526290efbec29ac4ff319.exe
    "C:\Users\Admin\AppData\Local\Temp\8f6fdc29008526290efbec29ac4ff319.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2196
    • 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\8f6fdc29008526290efbec29ac4ff319.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2148
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lgXWtErtxyegAQ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4716
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lgXWtErtxyegAQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp713E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2624
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lgXWtErtxyegAQ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4504
    • C:\Users\Admin\AppData\Local\Temp\8f6fdc29008526290efbec29ac4ff319.exe
      "C:\Users\Admin\AppData\Local\Temp\8f6fdc29008526290efbec29ac4ff319.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
      PID:2584

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        8f6fdc29008526290efbec29ac4ff319.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8f6fdc29008526290efbec29ac4ff319.exe.log
        • Size 1KB
        • SHA256 e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
        • MD5 SHA1 SHA512

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 205ba69502b825716336ac4986670d0426c6b257eb67d322dd83dcb2a27144b3
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_ecaoo2fo.u15.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ecaoo2fo.u15.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp713E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp713E.tmp
        • Size 1KB
        • SHA256 aae751871d7bd2d09e33eb90586de6df410ba6da9e032144e6ce80db2206ce06
        • MD5 SHA1 SHA512

        memory/2148-115-0x0000000007E70000-0x0000000007E7E000-memory.dmp

        memory/2148-27-0x00000000061B0000-0x0000000006216000-memory.dmp

        memory/2148-76-0x00000000078E0000-0x0000000007912000-memory.dmp

        memory/2148-100-0x0000000007920000-0x00000000079C3000-memory.dmp

        memory/2148-75-0x000000007F050000-0x000000007F060000-memory.dmp

        memory/2148-74-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/2148-114-0x0000000007E40000-0x0000000007E51000-memory.dmp

        memory/2148-16-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/2148-17-0x0000000005340000-0x0000000005376000-memory.dmp

        memory/2148-18-0x00000000054D0000-0x00000000054E0000-memory.dmp

        memory/2148-19-0x00000000054D0000-0x00000000054E0000-memory.dmp

        memory/2148-20-0x0000000005B10000-0x0000000006138000-memory.dmp

        memory/2148-72-0x00000000054D0000-0x00000000054E0000-memory.dmp

        memory/2148-71-0x0000000006E80000-0x0000000006ECC000-memory.dmp

        memory/2148-127-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/2148-68-0x0000000006920000-0x000000000693E000-memory.dmp

        memory/2148-80-0x0000000070DF0000-0x0000000070E3C000-memory.dmp

        memory/2148-116-0x0000000007E80000-0x0000000007E94000-memory.dmp

        memory/2148-118-0x0000000007F60000-0x0000000007F68000-memory.dmp

        memory/2196-3-0x00000000054B0000-0x0000000005542000-memory.dmp

        memory/2196-7-0x00000000058F0000-0x0000000005902000-memory.dmp

        memory/2196-1-0x0000000000980000-0x0000000000ABA000-memory.dmp

        memory/2196-2-0x0000000005A60000-0x0000000006004000-memory.dmp

        memory/2196-8-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/2196-51-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/2196-11-0x00000000010D0000-0x000000000110A000-memory.dmp

        memory/2196-0-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/2196-9-0x00000000057A0000-0x00000000057B0000-memory.dmp

        memory/2196-4-0x00000000055F0000-0x000000000568C000-memory.dmp

        memory/2196-6-0x0000000005550000-0x000000000555A000-memory.dmp

        memory/2196-5-0x00000000057A0000-0x00000000057B0000-memory.dmp

        memory/2196-10-0x0000000006EC0000-0x0000000006F6A000-memory.dmp

        memory/2584-67-0x0000000005A40000-0x0000000005A4A000-memory.dmp

        memory/2584-129-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/2584-130-0x0000000005710000-0x0000000005720000-memory.dmp

        memory/2584-70-0x0000000006500000-0x000000000650A000-memory.dmp

        memory/2584-69-0x0000000005BE0000-0x0000000005BFE000-memory.dmp

        memory/2584-55-0x0000000005710000-0x0000000005720000-memory.dmp

        memory/2584-50-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/2584-38-0x0000000000400000-0x0000000000438000-memory.dmp

        memory/4504-54-0x0000000005440000-0x0000000005450000-memory.dmp

        memory/4504-53-0x0000000005440000-0x0000000005450000-memory.dmp

        memory/4504-128-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/4504-117-0x0000000007FB0000-0x0000000007FCA000-memory.dmp

        memory/4504-99-0x0000000070DF0000-0x0000000070E3C000-memory.dmp

        memory/4504-52-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/4716-111-0x0000000007320000-0x000000000733A000-memory.dmp

        memory/4716-49-0x0000000005A00000-0x0000000005D54000-memory.dmp

        memory/4716-113-0x00000000075A0000-0x0000000007636000-memory.dmp

        memory/4716-73-0x0000000004B40000-0x0000000004B50000-memory.dmp

        memory/4716-78-0x000000007EFB0000-0x000000007EFC0000-memory.dmp

        memory/4716-110-0x0000000007970000-0x0000000007FEA000-memory.dmp

        memory/4716-77-0x0000000070DF0000-0x0000000070E3C000-memory.dmp

        memory/4716-112-0x0000000007390000-0x000000000739A000-memory.dmp

        memory/4716-26-0x00000000057B0000-0x0000000005816000-memory.dmp

        memory/4716-25-0x0000000005000000-0x0000000005022000-memory.dmp

        memory/4716-22-0x0000000004B40000-0x0000000004B50000-memory.dmp

        memory/4716-126-0x00000000747A0000-0x0000000074F50000-memory.dmp

        memory/4716-89-0x00000000065B0000-0x00000000065CE000-memory.dmp

        memory/4716-23-0x0000000004B40000-0x0000000004B50000-memory.dmp

        memory/4716-21-0x00000000747A0000-0x0000000074F50000-memory.dmp