Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2024 01:50

General

  • Target

    c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe

  • Size

    607KB

  • MD5

    3f6058dbb64084df7f3da0a1cb23a872

  • SHA1

    632554f2fcc9074d8a243de7c420c5663efb956c

  • SHA256

    c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2

  • SHA512

    a685084608abe12faef64ce719a16688d7a7ce5b81c7a2f0a698fed892b11d4a9e3686b1de64ab3a0ca10bddcfe78b9afcfd76a9fd44768864d7c4c45de7d821

  • SSDEEP

    12288:ypQS6Mb6fyFHdFWdRshjwHYiYaQaupo8AZzDNFyYpWqpQQ:yfjb6+DqCjjiDuqNZzDNFyYA0QQ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

blv23728.ddns.net:6110

127.0.0.1:6110

Mutex

7c49fc8b-b4e3-4ea2-a895-eda0223cb79d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-07-11T09:55:17.304143036Z

  • 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

    6110

  • default_group

    M3M3

  • 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

    7c49fc8b-b4e3-4ea2-a895-eda0223cb79d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    blv23728.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.

  • 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 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe
    "C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2980
    • 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\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2532
    • C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe
      "C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe"
      2⤵
        PID:2440
      • C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe
        "C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.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:2556
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "UDP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7DF6.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2524
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "UDP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7E64.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2812

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp7DF6.tmp

      Filesize

      1KB

      MD5

      e6e9c81c2a40ac61b3a61c15cfd9c8c1

      SHA1

      88a30ff0174585a528c47161d3ae0305aeab8f82

      SHA256

      becfce37d6beff6175f81b13fcf40fd8db124444dc56aaa830d25978092d914c

      SHA512

      4440c7a6dc2073e04bb08ec4a215b2aa8dd6bd5db18b28dabb2375eb31d4725b1579cf8f87f53a3757bc1d03eb543f060c776c4e652d4567c2fb6ca79ebdf28c

    • C:\Users\Admin\AppData\Local\Temp\tmp7E64.tmp

      Filesize

      1KB

      MD5

      c1c4b266e129249076bbe8a15cc5e06c

      SHA1

      312b8173c264245c834eee91e05dcca845c341f8

      SHA256

      f336d06dcadca621be6b2dc9493dcb84d871497e65142bc9fdd72c9f250a1b7b

      SHA512

      0f02ec7700f89d95d29014eec42d13c85234351c3fe1dc6a3efeea52ea76ca4bea3151567a6c798b5ce658d481b424646b43d93e95ccad897356a87a25d45041

    • memory/2556-37-0x0000000000580000-0x000000000059A000-memory.dmp

      Filesize

      104KB

    • memory/2556-45-0x0000000000CC0000-0x0000000000CD4000-memory.dmp

      Filesize

      80KB

    • memory/2556-44-0x0000000000B40000-0x0000000000B6E000-memory.dmp

      Filesize

      184KB

    • memory/2556-43-0x0000000000B30000-0x0000000000B3E000-memory.dmp

      Filesize

      56KB

    • memory/2556-42-0x0000000000840000-0x0000000000854000-memory.dmp

      Filesize

      80KB

    • memory/2556-9-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2556-7-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2556-8-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2556-17-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2556-15-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2556-13-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2556-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2556-10-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2556-18-0x0000000073F10000-0x00000000745FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2556-39-0x0000000000600000-0x0000000000612000-memory.dmp

      Filesize

      72KB

    • memory/2556-41-0x0000000000620000-0x0000000000630000-memory.dmp

      Filesize

      64KB

    • memory/2556-40-0x0000000000610000-0x0000000000624000-memory.dmp

      Filesize

      80KB

    • memory/2556-29-0x0000000000290000-0x000000000029A000-memory.dmp

      Filesize

      40KB

    • memory/2556-30-0x00000000004E0000-0x00000000004FE000-memory.dmp

      Filesize

      120KB

    • memory/2556-31-0x00000000003F0000-0x00000000003FA000-memory.dmp

      Filesize

      40KB

    • memory/2556-32-0x0000000073F10000-0x00000000745FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2556-36-0x0000000000520000-0x0000000000532000-memory.dmp

      Filesize

      72KB

    • memory/2556-38-0x00000000005A0000-0x00000000005AE000-memory.dmp

      Filesize

      56KB

    • memory/2980-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

      Filesize

      4KB

    • memory/2980-3-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

      Filesize

      4KB

    • memory/2980-1-0x0000000001140000-0x00000000011DE000-memory.dmp

      Filesize

      632KB

    • memory/2980-4-0x0000000073F10000-0x00000000745FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2980-6-0x0000000005090000-0x000000000510A000-memory.dmp

      Filesize

      488KB

    • memory/2980-5-0x0000000000670000-0x0000000000682000-memory.dmp

      Filesize

      72KB

    • memory/2980-21-0x0000000073F10000-0x00000000745FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2980-2-0x0000000073F10000-0x00000000745FE000-memory.dmp

      Filesize

      6.9MB