Analysis

  • max time kernel
    149s
  • max time network
    153s
  • 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 08:30

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 32 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:4944
    • 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:4544
    • 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:3912
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9A1D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3088
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1516
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:4136
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
            PID:4756
          • 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:2740
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /create /f /tn "AGP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA028.tmp"
              3⤵
              • Creates scheduled task(s)
              PID:4368
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /create /f /tn "AGP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA682.tmp"
              3⤵
              • Creates scheduled task(s)
              PID:3988

        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

          38a688f2db6a8ec2f7262cb5bf4a8461

          SHA1

          4bcc6ea79f94ea41f1fa1649db8725a2baea1338

          SHA256

          9216dcc9bbb0ee7c59a3cf4e2d278a5ad3a78fd47ca596025343dd5ee399468a

          SHA512

          ab7078a7be76807f570bfb392714478742dd64bdf844b2dc382a55ee3718cc615e3a73ccc1e471d882c0e3046711d977d23282032634fe724004f03bb4aa7661

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0pjb5hcl.2r5.ps1
          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp9A1D.tmp
          Filesize

          1KB

          MD5

          b196f968b0d5cf29b66132ec32c43639

          SHA1

          6eb793678b3b221b49641476a3e2424767a02787

          SHA256

          f8f0cb8d6b1e45a9527cd1ab597546e81901020bcc03da82ea9036ba17078010

          SHA512

          3d124b1418014e8765e0bf320f7c9a96c67b0265ad855ebf782e2b5dd17d3be28f022e408ccce8a7d9f44f5681eff3676f3117ce25348b5266c80104e4eee816

        • C:\Users\Admin\AppData\Local\Temp\tmpA028.tmp
          Filesize

          1KB

          MD5

          8cad1b41587ced0f1e74396794f31d58

          SHA1

          11054bf74fcf5e8e412768035e4dae43aa7b710f

          SHA256

          3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

          SHA512

          99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

        • C:\Users\Admin\AppData\Local\Temp\tmpA682.tmp
          Filesize

          1KB

          MD5

          7a81ae69c04c8d95261eb5f490b7f869

          SHA1

          9f4f484d306fea15b2e7f9f16db660833bb1f8ce

          SHA256

          ce3933e772f663a834335cc2071e5e7b2d49a065b51d84a259054b8ef663e785

          SHA512

          8260ab83106752a488e164bbed63ef334d34399bc9a5c09a0cfceba6aef48eafe5c64e4dfbd353ac3edfff2523b16c2b0287d34833a293c4436e068fae656de8

        • memory/2740-62-0x0000000006C50000-0x0000000006C5A000-memory.dmp
          Filesize

          40KB

        • memory/2740-59-0x0000000005B30000-0x0000000005B3A000-memory.dmp
          Filesize

          40KB

        • memory/2740-61-0x0000000005D10000-0x0000000005D2E000-memory.dmp
          Filesize

          120KB

        • memory/2740-60-0x0000000005B40000-0x0000000005B4C000-memory.dmp
          Filesize

          48KB

        • memory/2740-27-0x0000000000400000-0x000000000043A000-memory.dmp
          Filesize

          232KB

        • memory/3912-63-0x0000000006C80000-0x0000000006CB2000-memory.dmp
          Filesize

          200KB

        • memory/3912-94-0x0000000007120000-0x0000000007128000-memory.dmp
          Filesize

          32KB

        • memory/3912-87-0x0000000006E00000-0x0000000006E1A000-memory.dmp
          Filesize

          104KB

        • memory/3912-64-0x0000000075550000-0x000000007559C000-memory.dmp
          Filesize

          304KB

        • memory/3912-76-0x00000000060A0000-0x00000000060BE000-memory.dmp
          Filesize

          120KB

        • memory/3912-86-0x0000000007440000-0x0000000007ABA000-memory.dmp
          Filesize

          6.5MB

        • memory/3912-88-0x0000000006E70000-0x0000000006E7A000-memory.dmp
          Filesize

          40KB

        • memory/3912-90-0x0000000007000000-0x0000000007011000-memory.dmp
          Filesize

          68KB

        • memory/3912-53-0x0000000006010000-0x000000000605C000-memory.dmp
          Filesize

          304KB

        • memory/3912-50-0x0000000005AC0000-0x0000000005ADE000-memory.dmp
          Filesize

          120KB

        • memory/3912-25-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/3912-102-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/3912-93-0x0000000007140000-0x000000000715A000-memory.dmp
          Filesize

          104KB

        • memory/3912-39-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/4544-23-0x0000000005640000-0x00000000056A6000-memory.dmp
          Filesize

          408KB

        • memory/4544-24-0x00000000056B0000-0x0000000005716000-memory.dmp
          Filesize

          408KB

        • memory/4544-28-0x0000000005F00000-0x0000000006254000-memory.dmp
          Filesize

          3.3MB

        • memory/4544-22-0x00000000055A0000-0x00000000055C2000-memory.dmp
          Filesize

          136KB

        • memory/4544-85-0x0000000007770000-0x0000000007813000-memory.dmp
          Filesize

          652KB

        • memory/4544-92-0x0000000007AB0000-0x0000000007AC4000-memory.dmp
          Filesize

          80KB

        • memory/4544-91-0x0000000007AA0000-0x0000000007AAE000-memory.dmp
          Filesize

          56KB

        • memory/4544-101-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/4544-89-0x0000000007AF0000-0x0000000007B86000-memory.dmp
          Filesize

          600KB

        • memory/4544-21-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/4544-15-0x0000000002C40000-0x0000000002C76000-memory.dmp
          Filesize

          216KB

        • memory/4544-74-0x0000000075550000-0x000000007559C000-memory.dmp
          Filesize

          304KB

        • memory/4544-19-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/4544-18-0x00000000057B0000-0x0000000005DD8000-memory.dmp
          Filesize

          6.2MB

        • memory/4544-17-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/4944-26-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/4944-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp
          Filesize

          4KB

        • memory/4944-3-0x00000000057B0000-0x0000000005842000-memory.dmp
          Filesize

          584KB

        • memory/4944-4-0x0000000005970000-0x000000000597A000-memory.dmp
          Filesize

          40KB

        • memory/4944-5-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/4944-6-0x0000000005CA0000-0x0000000005CBE000-memory.dmp
          Filesize

          120KB

        • memory/4944-7-0x0000000005CF0000-0x0000000005D00000-memory.dmp
          Filesize

          64KB

        • memory/4944-8-0x0000000005D20000-0x0000000005D36000-memory.dmp
          Filesize

          88KB

        • memory/4944-40-0x0000000074CD0000-0x0000000075480000-memory.dmp
          Filesize

          7.7MB

        • memory/4944-9-0x0000000007150000-0x00000000071CC000-memory.dmp
          Filesize

          496KB

        • memory/4944-2-0x0000000005D60000-0x0000000006304000-memory.dmp
          Filesize

          5.6MB

        • memory/4944-1-0x0000000000CC0000-0x0000000000DB2000-memory.dmp
          Filesize

          968KB

        • memory/4944-10-0x00000000097C0000-0x000000000985C000-memory.dmp
          Filesize

          624KB

        • memory/4944-16-0x0000000074CDE000-0x0000000074CDF000-memory.dmp
          Filesize

          4KB