Analysis

  • max time kernel
    148s
  • 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 08:34

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 16 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:2620
    • 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:2124
    • 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:3476
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA596.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4848
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1488
      • 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:1436
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "LAN Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAA78.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:5100
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "LAN Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAD29.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2280

    Network

    MITRE ATT&CK Enterprise v15

    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

      9ab1526fc6456bb614b09da13d59f9ee

      SHA1

      153fa6850c945591b8e5284df8b811009bd01166

      SHA256

      c458ae98c5231d5df78df10b87cb0fcdc2830157a3edcec072f079d8c4e60339

      SHA512

      8a152a8e6d763e99ccf0a414dc8de49bee74b313a32bbc93b39aba3a5e61aa15aca6540ff79d4adf3b1e24bbbc837d18020951f7ac9254d4856063c15b1ec0ab

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pwccaaxf.yse.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpA596.tmp

      Filesize

      1KB

      MD5

      67fe6cee1bc9e0d52a71aa406e6ddcca

      SHA1

      d86debd51eb72c04787bae21ada1ae1ccbf3760e

      SHA256

      d89b2de6b959feafc690e270cc6b9281b6923d1c31ceabebd925ac390d2ec819

      SHA512

      c8cea7a4c9c13bc1b6584b385fcfbce9e37c510937fe9c51a964323d2a8ee297f88463a170c60ab460390f36aa2d61d8d8a8a932590f985099ec0f673335935c

    • C:\Users\Admin\AppData\Local\Temp\tmpAA78.tmp

      Filesize

      1KB

      MD5

      8cad1b41587ced0f1e74396794f31d58

      SHA1

      11054bf74fcf5e8e412768035e4dae43aa7b710f

      SHA256

      3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

      SHA512

      99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

    • C:\Users\Admin\AppData\Local\Temp\tmpAD29.tmp

      Filesize

      1KB

      MD5

      ecf141ec69adbb2a5c3dd5c85cd0ec39

      SHA1

      0ad224632fa58d103142c05c44a142f3d7208291

      SHA256

      64d8cfa0b25afee269839cd5fc0b66e5643bc318e5f4d3ce1b9dba2456c83316

      SHA512

      4821b062d6672f3ed07833cfd7ab9abb533850b451b632d781fbfad8238fcd5ac52855f1f239547ae2d1c1477959f022430302a75cfd3c19a8473af72a1ef201

    • memory/1436-63-0x0000000006180000-0x000000000618A000-memory.dmp

      Filesize

      40KB

    • memory/1436-60-0x00000000051E0000-0x00000000051EA000-memory.dmp

      Filesize

      40KB

    • memory/1436-61-0x00000000051F0000-0x00000000051FC000-memory.dmp

      Filesize

      48KB

    • memory/1436-62-0x0000000006050000-0x000000000606E000-memory.dmp

      Filesize

      120KB

    • memory/1436-45-0x0000000000400000-0x000000000043A000-memory.dmp

      Filesize

      232KB

    • memory/2124-75-0x0000000006E60000-0x0000000006E7E000-memory.dmp

      Filesize

      120KB

    • memory/2124-64-0x0000000006E80000-0x0000000006EB2000-memory.dmp

      Filesize

      200KB

    • memory/2124-17-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-18-0x0000000004E90000-0x00000000054B8000-memory.dmp

      Filesize

      6.2MB

    • memory/2124-19-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-15-0x0000000002400000-0x0000000002436000-memory.dmp

      Filesize

      216KB

    • memory/2124-102-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-94-0x0000000007370000-0x000000000738A000-memory.dmp

      Filesize

      104KB

    • memory/2124-24-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-26-0x0000000005720000-0x0000000005A74000-memory.dmp

      Filesize

      3.3MB

    • memory/2124-91-0x0000000007230000-0x0000000007241000-memory.dmp

      Filesize

      68KB

    • memory/2124-88-0x0000000007030000-0x000000000704A000-memory.dmp

      Filesize

      104KB

    • memory/2124-76-0x0000000006ED0000-0x0000000006F73000-memory.dmp

      Filesize

      652KB

    • memory/2124-65-0x0000000075A10000-0x0000000075A5C000-memory.dmp

      Filesize

      304KB

    • memory/2620-7-0x00000000052E0000-0x00000000052F0000-memory.dmp

      Filesize

      64KB

    • memory/2620-0-0x000000007519E000-0x000000007519F000-memory.dmp

      Filesize

      4KB

    • memory/2620-1-0x00000000003B0000-0x00000000004A2000-memory.dmp

      Filesize

      968KB

    • memory/2620-2-0x0000000005390000-0x0000000005934000-memory.dmp

      Filesize

      5.6MB

    • memory/2620-10-0x0000000008AC0000-0x0000000008B5C000-memory.dmp

      Filesize

      624KB

    • memory/2620-9-0x0000000006420000-0x000000000649C000-memory.dmp

      Filesize

      496KB

    • memory/2620-8-0x0000000005310000-0x0000000005326000-memory.dmp

      Filesize

      88KB

    • memory/2620-16-0x000000007519E000-0x000000007519F000-memory.dmp

      Filesize

      4KB

    • memory/2620-6-0x0000000005190000-0x00000000051AE000-memory.dmp

      Filesize

      120KB

    • memory/2620-4-0x0000000004F50000-0x0000000004F5A000-memory.dmp

      Filesize

      40KB

    • memory/2620-5-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/2620-3-0x0000000004E90000-0x0000000004F22000-memory.dmp

      Filesize

      584KB

    • memory/2620-48-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/2620-50-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/3476-77-0x0000000075A10000-0x0000000075A5C000-memory.dmp

      Filesize

      304KB

    • memory/3476-52-0x0000000006140000-0x000000000615E000-memory.dmp

      Filesize

      120KB

    • memory/3476-46-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/3476-87-0x0000000007AA0000-0x000000000811A000-memory.dmp

      Filesize

      6.5MB

    • memory/3476-55-0x00000000061D0000-0x000000000621C000-memory.dmp

      Filesize

      304KB

    • memory/3476-89-0x00000000074D0000-0x00000000074DA000-memory.dmp

      Filesize

      40KB

    • memory/3476-90-0x00000000076E0000-0x0000000007776000-memory.dmp

      Filesize

      600KB

    • memory/3476-49-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/3476-92-0x0000000007690000-0x000000000769E000-memory.dmp

      Filesize

      56KB

    • memory/3476-93-0x00000000076A0000-0x00000000076B4000-memory.dmp

      Filesize

      80KB

    • memory/3476-22-0x0000000005210000-0x0000000005276000-memory.dmp

      Filesize

      408KB

    • memory/3476-95-0x0000000007780000-0x0000000007788000-memory.dmp

      Filesize

      32KB

    • memory/3476-101-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/3476-21-0x0000000005070000-0x0000000005092000-memory.dmp

      Filesize

      136KB

    • memory/3476-25-0x0000000075190000-0x0000000075940000-memory.dmp

      Filesize

      7.7MB

    • memory/3476-23-0x00000000058C0000-0x0000000005926000-memory.dmp

      Filesize

      408KB