Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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 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:4528
    • 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:4984
    • 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:3240
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9867.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1756
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:3660
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:1720
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
            PID:448
          • 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:2456
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /create /f /tn "DPI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9DD6.tmp"
              3⤵
              • Creates scheduled task(s)
              PID:1764
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /create /f /tn "DPI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA038.tmp"
              3⤵
              • Creates scheduled task(s)
              PID:3860

        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

          50d10e873cbc8a667c7271a19b4b036a

          SHA1

          edc48cc0d55ee7bdacf53719d607c7a99aa6c76f

          SHA256

          eee345c6c568b9ac4cfdb57b353d2ade88020559d5a2e34ab1c617e0a619b93a

          SHA512

          3008c34b37045c867566952ed0edff3b3ec7adf5cc4e3ef831a0d089245394efc0aeec15c71371cd19df7a1090faff5799480082f12ee44e9cee4341573aad5b

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yl1d3blw.sgv.ps1
          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp9867.tmp
          Filesize

          1KB

          MD5

          f7c5ed2cd473833b154217a52a430c51

          SHA1

          589d8d69330ed81aa7eab30717f4c384b80774c6

          SHA256

          f52d3cb7276344ea53186879470ef28cd1bd72838d711ec9630fe8c45a887cab

          SHA512

          9cd86b088fe15999de8a6027b379cd5a4c75267ee867fbaa01b52ae1a0a1bef099932bf7998a329c3721adc264f804b66581c23b1f42e65b2abcb9cb7478fd9a

        • C:\Users\Admin\AppData\Local\Temp\tmp9DD6.tmp
          Filesize

          1KB

          MD5

          8cad1b41587ced0f1e74396794f31d58

          SHA1

          11054bf74fcf5e8e412768035e4dae43aa7b710f

          SHA256

          3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

          SHA512

          99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

        • C:\Users\Admin\AppData\Local\Temp\tmpA038.tmp
          Filesize

          1KB

          MD5

          5fea24e883e06e4df6d240dc72abf2c5

          SHA1

          d778bf0f436141e02df4b421e8188abdcc9a84a4

          SHA256

          e858982f4ab3c74f7a8903eea18c0f73501a77273ae38b54d5c9dec997e79a66

          SHA512

          15afc2ffbbee14d28a5ff8dc8285d01c942147aada36fb33e31045a4e998769b51738bebe199bcad3462f918b535845a893aa2f80c84b9c795cd1fee4a327924

        • memory/2456-61-0x0000000005520000-0x000000000552C000-memory.dmp
          Filesize

          48KB

        • memory/2456-62-0x0000000005650000-0x000000000566E000-memory.dmp
          Filesize

          120KB

        • memory/2456-63-0x00000000058B0000-0x00000000058BA000-memory.dmp
          Filesize

          40KB

        • memory/2456-60-0x0000000005510000-0x000000000551A000-memory.dmp
          Filesize

          40KB

        • memory/2456-32-0x0000000000400000-0x000000000043A000-memory.dmp
          Filesize

          232KB

        • memory/3240-90-0x0000000007440000-0x00000000074D6000-memory.dmp
          Filesize

          600KB

        • memory/3240-87-0x0000000007800000-0x0000000007E7A000-memory.dmp
          Filesize

          6.5MB

        • memory/3240-101-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/3240-88-0x00000000071C0000-0x00000000071DA000-memory.dmp
          Filesize

          104KB

        • memory/3240-95-0x00000000074E0000-0x00000000074E8000-memory.dmp
          Filesize

          32KB

        • memory/3240-89-0x0000000007230000-0x000000000723A000-memory.dmp
          Filesize

          40KB

        • memory/3240-22-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/3240-75-0x0000000074F00000-0x0000000074F4C000-memory.dmp
          Filesize

          304KB

        • memory/3240-94-0x0000000007500000-0x000000000751A000-memory.dmp
          Filesize

          104KB

        • memory/3240-26-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/3240-48-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/3240-91-0x00000000073C0000-0x00000000073D1000-memory.dmp
          Filesize

          68KB

        • memory/4528-10-0x0000000006710000-0x00000000067AC000-memory.dmp
          Filesize

          624KB

        • memory/4528-7-0x0000000005540000-0x0000000005550000-memory.dmp
          Filesize

          64KB

        • memory/4528-0-0x000000007465E000-0x000000007465F000-memory.dmp
          Filesize

          4KB

        • memory/4528-50-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/4528-9-0x0000000006690000-0x000000000670C000-memory.dmp
          Filesize

          496KB

        • memory/4528-20-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/4528-8-0x0000000005570000-0x0000000005586000-memory.dmp
          Filesize

          88KB

        • memory/4528-16-0x000000007465E000-0x000000007465F000-memory.dmp
          Filesize

          4KB

        • memory/4528-4-0x0000000005130000-0x000000000513A000-memory.dmp
          Filesize

          40KB

        • memory/4528-5-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/4528-6-0x00000000053E0000-0x00000000053FE000-memory.dmp
          Filesize

          120KB

        • memory/4528-3-0x0000000005190000-0x0000000005222000-memory.dmp
          Filesize

          584KB

        • memory/4528-2-0x00000000056A0000-0x0000000005C44000-memory.dmp
          Filesize

          5.6MB

        • memory/4528-1-0x0000000000620000-0x0000000000712000-memory.dmp
          Filesize

          968KB

        • memory/4984-46-0x0000000006200000-0x0000000006554000-memory.dmp
          Filesize

          3.3MB

        • memory/4984-65-0x0000000074F00000-0x0000000074F4C000-memory.dmp
          Filesize

          304KB

        • memory/4984-64-0x0000000006E10000-0x0000000006E42000-memory.dmp
          Filesize

          200KB

        • memory/4984-79-0x0000000006E90000-0x0000000006EAE000-memory.dmp
          Filesize

          120KB

        • memory/4984-86-0x0000000007A60000-0x0000000007B03000-memory.dmp
          Filesize

          652KB

        • memory/4984-23-0x0000000005790000-0x00000000057B2000-memory.dmp
          Filesize

          136KB

        • memory/4984-51-0x0000000006860000-0x000000000687E000-memory.dmp
          Filesize

          120KB

        • memory/4984-52-0x0000000006A20000-0x0000000006A6C000-memory.dmp
          Filesize

          304KB

        • memory/4984-24-0x0000000005830000-0x0000000005896000-memory.dmp
          Filesize

          408KB

        • memory/4984-42-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/4984-92-0x0000000007DB0000-0x0000000007DBE000-memory.dmp
          Filesize

          56KB

        • memory/4984-93-0x0000000007DC0000-0x0000000007DD4000-memory.dmp
          Filesize

          80KB

        • memory/4984-25-0x00000000058A0000-0x0000000005906000-memory.dmp
          Filesize

          408KB

        • memory/4984-19-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/4984-17-0x0000000005910000-0x0000000005F38000-memory.dmp
          Filesize

          6.2MB

        • memory/4984-18-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB

        • memory/4984-15-0x00000000052A0000-0x00000000052D6000-memory.dmp
          Filesize

          216KB

        • memory/4984-102-0x0000000074650000-0x0000000074E00000-memory.dmp
          Filesize

          7.7MB