Analysis

  • max time kernel
    91s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2022 14:28

General

  • Target

    r1QLPWfRySIThAz.exe

  • Size

    777KB

  • MD5

    e995458027aeaf560bf2b6a8025c3cd3

  • SHA1

    6fad8d96fa450a5e9c882977153bb629569f5922

  • SHA256

    97637825f3b03f07721d1913a89386975ed4d9ef6b724cfabac27d4870e1c702

  • SHA512

    9b7d0c63a5202ee4044a871949efaeb12c0262e5f9d60297c2e9477775c00778f943b7c3ede3e473f662348e598921c91574aab44429f8c01ecce32d6f053c5d

  • SSDEEP

    12288:X2HvdWhj697z56/jGvuSgZb385xbNBuM2KW0IdcuOQUXS8NY:Echw/EmkZb6xblW0IHOZXNY

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

godisgood1.hopto.org:7712

185.225.73.164:7712

Mutex

bcd7727e-ef56-4958-8ed9-949f5c5ea8f6

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.225.73.164

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-05-24T09:37:49.129028236Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    7712

  • default_group

    Default

  • 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

    bcd7727e-ef56-4958-8ed9-949f5c5ea8f6

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    godisgood1.hopto.org

  • 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). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 3 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\r1QLPWfRySIThAz.exe
    "C:\Users\Admin\AppData\Local\Temp\r1QLPWfRySIThAz.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4040
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZVeYWtaQUaIrep" /XML "C:\Users\Admin\AppData\Local\Temp\tmp16A5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1236
    • C:\Users\Admin\AppData\Local\Temp\r1QLPWfRySIThAz.exe
      "{path}"
      2⤵
        PID:5048
      • C:\Users\Admin\AppData\Local\Temp\r1QLPWfRySIThAz.exe
        "{path}"
        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
        • Suspicious use of WriteProcessMemory
        PID:2712
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1BC5.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:832
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1CA1.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2340

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\r1QLPWfRySIThAz.exe.log

      Filesize

      1KB

      MD5

      84e77a587d94307c0ac1357eb4d3d46f

      SHA1

      83cc900f9401f43d181207d64c5adba7a85edc1e

      SHA256

      e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

      SHA512

      aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

    • C:\Users\Admin\AppData\Local\Temp\tmp16A5.tmp

      Filesize

      1KB

      MD5

      fc6be0adb71f408f6817230a84f064a7

      SHA1

      d95be6915216eac86b844df5ecc214f574fede56

      SHA256

      37be45917d283d6b96229a720493b950c0e1000479747cb68f404379abf0eae9

      SHA512

      1e04f9a454880f0cee41b380092e7bc0895be8d66dc9c9c76eac16f175cf3aba8d17b1534aa27679b6f0bb30e25e43e63b34ad2bbcbd67289ac05418fc157804

    • C:\Users\Admin\AppData\Local\Temp\tmp1BC5.tmp

      Filesize

      1KB

      MD5

      de4dc3d90e4d8663ad34b67bf55a05c0

      SHA1

      804527cafd60970ceb009e493e1e90cbbbb8648b

      SHA256

      2322ac8f7991417e50fa27da04f70cc6110304fd6258ce9ca0776d33c6dd9de5

      SHA512

      79041c971d20e760a7cf150e254ae001f9c7f7fb15c35a3880bf5505d02e16b5b25f9a2b40326fbab3d7133944ade90bf612e4d759be70fdf9445f35b7580373

    • C:\Users\Admin\AppData\Local\Temp\tmp1CA1.tmp

      Filesize

      1KB

      MD5

      2271642ca970891700e3f48439739ed8

      SHA1

      cd472df2349f7db9e1e460d0ee28acd97b8a8793

      SHA256

      7aba66abbcb0b13455609174db23aed495a9adbef0e0acd28baa9c92445eda68

      SHA512

      4669a4ef8ec28cdb852ffc1401576b1bf9a9d837797d7d92bc88c18b3097404f36854e50167b309706fef400cabc43c876569ce2797ba85eb169a2783b8fe807

    • memory/832-143-0x0000000000000000-mapping.dmp

    • memory/1236-137-0x0000000000000000-mapping.dmp

    • memory/2340-145-0x0000000000000000-mapping.dmp

    • memory/2712-140-0x0000000000000000-mapping.dmp

    • memory/2712-141-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2712-147-0x00000000071A0000-0x0000000007206000-memory.dmp

      Filesize

      408KB

    • memory/4040-132-0x0000000000BE0000-0x0000000000CA8000-memory.dmp

      Filesize

      800KB

    • memory/4040-136-0x0000000005710000-0x000000000571A000-memory.dmp

      Filesize

      40KB

    • memory/4040-135-0x00000000057B0000-0x000000000584C000-memory.dmp

      Filesize

      624KB

    • memory/4040-134-0x0000000005670000-0x0000000005702000-memory.dmp

      Filesize

      584KB

    • memory/4040-133-0x0000000005C20000-0x00000000061C4000-memory.dmp

      Filesize

      5.6MB

    • memory/5048-139-0x0000000000000000-mapping.dmp