Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/03/2025, 00:46

General

  • Target

    0ce3bcd42ab7a0b99e8b101ab65af60c33a1731992df516c4cd19c0cf9fee7e5.exe

  • Size

    1.2MB

  • MD5

    6f55f3ce777b14cded60ff84c49aefc2

  • SHA1

    684be97c043133ec9fe5ccfb04628864e0d06fba

  • SHA256

    0ce3bcd42ab7a0b99e8b101ab65af60c33a1731992df516c4cd19c0cf9fee7e5

  • SHA512

    309ee0916c2bf473e4a5dbb1153b78b990611a6f5ffe1dcd6f8da4ee94fd4fbda8cbf090b3086e1f379ccd9c6b01cd13a5532295a220a9d021761a91aedb6b3b

  • SSDEEP

    24576:0xEo0hcyTAkOY6ciDnifxCUQ78cb2mmmsr5nENi:0xiJfAi5CTlvmNRENi

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.114.225.7:5502

Mutex

d0f67b11-5f9c-4a18-bad1-6ac1f96cb72d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.114.225.7

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2017-06-21T17:51:56.715796736Z

  • 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

    5502

  • default_group

    Csgoniggers

  • 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

    d0f67b11-5f9c-4a18-bad1-6ac1f96cb72d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    185.114.225.7

  • 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
  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 13 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0ce3bcd42ab7a0b99e8b101ab65af60c33a1731992df516c4cd19c0cf9fee7e5.exe
    "C:\Users\Admin\AppData\Local\Temp\0ce3bcd42ab7a0b99e8b101ab65af60c33a1731992df516c4cd19c0cf9fee7e5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3712
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.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:764
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB064.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4128
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB0C3.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB064.tmp

    Filesize

    1KB

    MD5

    3f76b55d124a132695096b4f1728b273

    SHA1

    1bad3618b1673bbf98d2ba729eb2bee67ef62a73

    SHA256

    c24803bbf9fc77c6e774c9e01142979888c6d4a848d19c916f1de3f399fc7e89

    SHA512

    6433c2820d518308b3823028bb58d857a6749783ae9d00f23f5ff4435fd9a2ea647700eca7ac74c2340c8bc5bdd746a125a35ed1bb2c6c0402051100e55b999e

  • C:\Users\Admin\AppData\Local\Temp\tmpB0C3.tmp

    Filesize

    1KB

    MD5

    7f4b37265a0a4b0fea67999d11d911e8

    SHA1

    1b8e13e6a27c3768c30cf713b79eaa8a757e1349

    SHA256

    39b16b3a00b6b43c6820357127228c0768a577153014ce7b0ea3c585244dc08b

    SHA512

    ef97ccfb663555aedc7fdc4b3ac4cd6536c80a778b4ec3bc6124a09544733988de1dac1e6a3714b0d6e8713e3523e0732d5dfcf674f2c5e1f3eadacb0c8e5e03

  • memory/764-9-0x00000000746E0000-0x0000000074C91000-memory.dmp

    Filesize

    5.7MB

  • memory/764-3-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/764-7-0x00000000746E2000-0x00000000746E3000-memory.dmp

    Filesize

    4KB

  • memory/764-8-0x00000000746E0000-0x0000000074C91000-memory.dmp

    Filesize

    5.7MB

  • memory/764-17-0x00000000746E2000-0x00000000746E3000-memory.dmp

    Filesize

    4KB

  • memory/764-18-0x00000000746E0000-0x0000000074C91000-memory.dmp

    Filesize

    5.7MB

  • memory/764-19-0x00000000746E0000-0x0000000074C91000-memory.dmp

    Filesize

    5.7MB

  • memory/3712-6-0x00000000031C0000-0x00000000032B5000-memory.dmp

    Filesize

    980KB

  • memory/3712-5-0x00000000028B0000-0x00000000029A5000-memory.dmp

    Filesize

    980KB

  • memory/3712-4-0x0000000000400000-0x00000000004E2000-memory.dmp

    Filesize

    904KB

  • memory/3712-0-0x0000000002270000-0x0000000002271000-memory.dmp

    Filesize

    4KB

  • memory/3712-2-0x00000000031C0000-0x00000000032B5000-memory.dmp

    Filesize

    980KB

  • memory/3712-1-0x00000000028B0000-0x00000000029A5000-memory.dmp

    Filesize

    980KB