Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 08:31

General

  • Target

    ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe

  • Size

    945KB

  • MD5

    a1f6c95a377a8c4c194a018614a6b463

  • SHA1

    cd8ce511a2ac57aec39892c0b27832a18e77fc39

  • SHA256

    ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c

  • SHA512

    fb93341612485022964338a421fbf6a77876d1efc492307e18a4fa28354643f8675cf685847ee8ffc9315232449f1c6b8aab674bb2beb0dc5e14ca6e020510a5

  • SSDEEP

    12288:gI0MYBl4BwkivLUyyqexCwG879IO0MgsaQ/nsy9LHr24HwmU3V50:50MYfMweyTivP7yO7aQ/nsWRQJV5

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

december2nd.ddns.net:65024

december2n.duckdns.org:65024

Mutex

2c009a56-c28c-48f4-8875-acf9e1222e9f

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    december2n.duckdns.org

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2024-02-17T09:12:36.211032636Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    65024

  • default_group

    NO GREE

  • 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

    2c009a56-c28c-48f4-8875-acf9e1222e9f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    december2nd.ddns.net

  • primary_dns_server

  • 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 2 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
  • 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 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe
    "C:\Users\Admin\AppData\Local\Temp\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4540
    • 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\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2036
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fupTmRCVq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2968
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D43.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4836
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1580
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Adds Run key to start application
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1856
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp44F3.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2684
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp487F.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1976
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4068,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4292 /prefetch:8
      1⤵
        PID:2524

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Command and Scripting Interpreter

      1
      T1059

      PowerShell

      1
      T1059.001

      Scheduled Task/Job

      1
      T1053

      Persistence

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Scheduled Task/Job

      1
      T1053

      Privilege Escalation

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Scheduled Task/Job

      1
      T1053

      Defense Evasion

      Modify Registry

      1
      T1112

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      2
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        2KB

        MD5

        968cb9309758126772781b83adb8a28f

        SHA1

        8da30e71accf186b2ba11da1797cf67f8f78b47c

        SHA256

        92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

        SHA512

        4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        Filesize

        18KB

        MD5

        48e4779ea9faa5415fcc5e9a197bb280

        SHA1

        966ce6beb287506cc49a89b8ca528b8b132b9136

        SHA256

        2841e347fd9839ad1bf5316283367af3ab81882c077029cc29359d2373ea6e44

        SHA512

        646f560ba143356f68d31952ee3e8e46664bb42130e98fb706c20148b777cc3126d5a43c29db6c9b2589868b05a7018ee95cdbb49cea90c3b5f3416790f868da

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lcwwqfww.vbd.ps1
        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp3D43.tmp
        Filesize

        1KB

        MD5

        ed722c99a3b93ffb2e3be231473a614f

        SHA1

        409f9eb538d1464dd6cde6454b265c0e97ec7fed

        SHA256

        929f0a9e5f79c8d122606f6cb50e606440fc34d992cbacce2252d7e7b92b777e

        SHA512

        84be0543388464177e38e36a6ac716f1eb405e4a3fe2b0c87387acbc87ce35e120ce57dd27b4ef727c7b41602835741889b1a3b5b57ff9d166197a603f36ebfe

      • C:\Users\Admin\AppData\Local\Temp\tmp487F.tmp
        Filesize

        1KB

        MD5

        93d357e6194c8eb8d0616a9f592cc4bf

        SHA1

        5cc3a3d95d82cb88f65cb6dc6c188595fa272808

        SHA256

        a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713

        SHA512

        4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

      • memory/1856-60-0x00000000052D0000-0x00000000052DC000-memory.dmp
        Filesize

        48KB

      • memory/1856-61-0x0000000005610000-0x000000000562E000-memory.dmp
        Filesize

        120KB

      • memory/1856-62-0x00000000063A0000-0x00000000063AA000-memory.dmp
        Filesize

        40KB

      • memory/1856-59-0x00000000052C0000-0x00000000052CA000-memory.dmp
        Filesize

        40KB

      • memory/1856-44-0x0000000000400000-0x000000000043A000-memory.dmp
        Filesize

        232KB

      • memory/2036-77-0x00000000074B0000-0x00000000074CA000-memory.dmp
        Filesize

        104KB

      • memory/2036-75-0x00000000073B0000-0x0000000007453000-memory.dmp
        Filesize

        652KB

      • memory/2036-16-0x0000000004BB0000-0x0000000004BE6000-memory.dmp
        Filesize

        216KB

      • memory/2036-100-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/2036-19-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/2036-18-0x0000000005310000-0x0000000005938000-memory.dmp
        Filesize

        6.2MB

      • memory/2036-20-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/2036-92-0x00000000076F0000-0x0000000007704000-memory.dmp
        Filesize

        80KB

      • memory/2036-90-0x00000000076B0000-0x00000000076C1000-memory.dmp
        Filesize

        68KB

      • memory/2036-23-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/2036-89-0x0000000007730000-0x00000000077C6000-memory.dmp
        Filesize

        600KB

      • memory/2036-25-0x00000000051C0000-0x00000000051E2000-memory.dmp
        Filesize

        136KB

      • memory/2036-26-0x00000000059B0000-0x0000000005A16000-memory.dmp
        Filesize

        408KB

      • memory/2036-27-0x0000000005B50000-0x0000000005BB6000-memory.dmp
        Filesize

        408KB

      • memory/2036-88-0x0000000007520000-0x000000000752A000-memory.dmp
        Filesize

        40KB

      • memory/2036-76-0x0000000007B00000-0x000000000817A000-memory.dmp
        Filesize

        6.5MB

      • memory/2036-63-0x0000000007170000-0x00000000071A2000-memory.dmp
        Filesize

        200KB

      • memory/2036-64-0x0000000070330000-0x000000007037C000-memory.dmp
        Filesize

        304KB

      • memory/2036-50-0x0000000006150000-0x000000000616E000-memory.dmp
        Filesize

        120KB

      • memory/2036-51-0x0000000006700000-0x000000000674C000-memory.dmp
        Filesize

        304KB

      • memory/2036-74-0x0000000007130000-0x000000000714E000-memory.dmp
        Filesize

        120KB

      • memory/2968-78-0x0000000070330000-0x000000007037C000-memory.dmp
        Filesize

        304KB

      • memory/2968-43-0x0000000006130000-0x0000000006484000-memory.dmp
        Filesize

        3.3MB

      • memory/2968-101-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/2968-94-0x0000000007DC0000-0x0000000007DC8000-memory.dmp
        Filesize

        32KB

      • memory/2968-93-0x0000000007DE0000-0x0000000007DFA000-memory.dmp
        Filesize

        104KB

      • memory/2968-21-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/2968-91-0x0000000007CD0000-0x0000000007CDE000-memory.dmp
        Filesize

        56KB

      • memory/2968-24-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/4540-49-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/4540-7-0x0000000005CD0000-0x0000000005CE0000-memory.dmp
        Filesize

        64KB

      • memory/4540-11-0x000000007535E000-0x000000007535F000-memory.dmp
        Filesize

        4KB

      • memory/4540-9-0x0000000006CC0000-0x0000000006D3C000-memory.dmp
        Filesize

        496KB

      • memory/4540-8-0x0000000005D00000-0x0000000005D16000-memory.dmp
        Filesize

        88KB

      • memory/4540-10-0x0000000009410000-0x00000000094AC000-memory.dmp
        Filesize

        624KB

      • memory/4540-5-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/4540-0-0x000000007535E000-0x000000007535F000-memory.dmp
        Filesize

        4KB

      • memory/4540-6-0x0000000005A60000-0x0000000005A7E000-memory.dmp
        Filesize

        120KB

      • memory/4540-3-0x0000000005820000-0x00000000058B2000-memory.dmp
        Filesize

        584KB

      • memory/4540-2-0x0000000005D30000-0x00000000062D4000-memory.dmp
        Filesize

        5.6MB

      • memory/4540-17-0x0000000075350000-0x0000000075B00000-memory.dmp
        Filesize

        7.7MB

      • memory/4540-1-0x0000000000CA0000-0x0000000000D92000-memory.dmp
        Filesize

        968KB

      • memory/4540-4-0x00000000057A0000-0x00000000057AA000-memory.dmp
        Filesize

        40KB