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Analysis

  • max time kernel
    147s
  • 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, 08:34

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:2804
    • 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:3784
    • 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:3700
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8ACB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3128
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:4016
      • 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:2096
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8F4F.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1828
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9309.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2836

    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

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

      Filesize

      18KB

      MD5

      7aff546d3ae4bdca5c52f10c5066098c

      SHA1

      ed5a69f8bcb7f4bb79801505de65e571746fb02c

      SHA256

      17408ea57ee0f7029755702f1412a0f80ffbf7fe77cc4c1e6f584903c4e8657d

      SHA512

      49575c1420feff8cf82569f5fba7add0f685def8d6759b8681b4e33201464fe177744983d455ccb5fdc64cd1d6f864d2034fba3a288a5b1f30762fdfe259dd6d

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_31ske0yh.24v.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp8ACB.tmp

      Filesize

      1KB

      MD5

      eb191f331a938125005e0de35289d1be

      SHA1

      9f036798936f34fa5b483f4e47f3ee80afb72b23

      SHA256

      04e80553000a88cae1b459ac57cc5977a59766c001d0223a5ff19b7a44a96cd6

      SHA512

      fbc9bc540c2d420541adba4f15523d0b17045c5833eb9b7d2163c4c95d737a5045a18f3f8cbc7a5b0455df8e06d8f20ccbb0ca85acd0f48b886a19b96122f014

    • C:\Users\Admin\AppData\Local\Temp\tmp8F4F.tmp

      Filesize

      1KB

      MD5

      8cad1b41587ced0f1e74396794f31d58

      SHA1

      11054bf74fcf5e8e412768035e4dae43aa7b710f

      SHA256

      3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

      SHA512

      99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

    • C:\Users\Admin\AppData\Local\Temp\tmp9309.tmp

      Filesize

      1KB

      MD5

      2271642ca970891700e3f48439739ed8

      SHA1

      cd472df2349f7db9e1e460d0ee28acd97b8a8793

      SHA256

      7aba66abbcb0b13455609174db23aed495a9adbef0e0acd28baa9c92445eda68

      SHA512

      4669a4ef8ec28cdb852ffc1401576b1bf9a9d837797d7d92bc88c18b3097404f36854e50167b309706fef400cabc43c876569ce2797ba85eb169a2783b8fe807

    • memory/2096-47-0x0000000000400000-0x000000000043A000-memory.dmp

      Filesize

      232KB

    • memory/2096-60-0x0000000006160000-0x000000000616C000-memory.dmp

      Filesize

      48KB

    • memory/2096-59-0x00000000054B0000-0x00000000054BA000-memory.dmp

      Filesize

      40KB

    • memory/2096-61-0x0000000006170000-0x000000000618E000-memory.dmp

      Filesize

      120KB

    • memory/2096-62-0x00000000062C0000-0x00000000062CA000-memory.dmp

      Filesize

      40KB

    • memory/2804-26-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/2804-2-0x0000000005EC0000-0x0000000006464000-memory.dmp

      Filesize

      5.6MB

    • memory/2804-6-0x00000000059C0000-0x00000000059DE000-memory.dmp

      Filesize

      120KB

    • memory/2804-5-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/2804-1-0x0000000000D30000-0x0000000000E22000-memory.dmp

      Filesize

      968KB

    • memory/2804-8-0x0000000005B80000-0x0000000005B96000-memory.dmp

      Filesize

      88KB

    • memory/2804-9-0x0000000006D50000-0x0000000006DCC000-memory.dmp

      Filesize

      496KB

    • memory/2804-49-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/2804-7-0x0000000005B50000-0x0000000005B60000-memory.dmp

      Filesize

      64KB

    • memory/2804-4-0x00000000058C0000-0x00000000058CA000-memory.dmp

      Filesize

      40KB

    • memory/2804-3-0x0000000005800000-0x0000000005892000-memory.dmp

      Filesize

      584KB

    • memory/2804-10-0x0000000009490000-0x000000000952C000-memory.dmp

      Filesize

      624KB

    • memory/2804-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

      Filesize

      4KB

    • memory/2804-16-0x00000000744DE000-0x00000000744DF000-memory.dmp

      Filesize

      4KB

    • memory/3700-100-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/3700-46-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/3700-65-0x0000000070B80000-0x0000000070BCC000-memory.dmp

      Filesize

      304KB

    • memory/3700-21-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/3700-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/3700-94-0x0000000007310000-0x0000000007318000-memory.dmp

      Filesize

      32KB

    • memory/3784-23-0x0000000005940000-0x00000000059A6000-memory.dmp

      Filesize

      408KB

    • memory/3784-54-0x0000000006C20000-0x0000000006C6C000-memory.dmp

      Filesize

      304KB

    • memory/3784-52-0x0000000006890000-0x00000000068AE000-memory.dmp

      Filesize

      120KB

    • memory/3784-22-0x00000000058A0000-0x00000000058C2000-memory.dmp

      Filesize

      136KB

    • memory/3784-27-0x0000000006240000-0x0000000006594000-memory.dmp

      Filesize

      3.3MB

    • memory/3784-24-0x0000000006090000-0x00000000060F6000-memory.dmp

      Filesize

      408KB

    • memory/3784-63-0x0000000006E80000-0x0000000006EB2000-memory.dmp

      Filesize

      200KB

    • memory/3784-64-0x0000000070B80000-0x0000000070BCC000-memory.dmp

      Filesize

      304KB

    • memory/3784-84-0x0000000006E20000-0x0000000006E3E000-memory.dmp

      Filesize

      120KB

    • memory/3784-85-0x0000000007A70000-0x0000000007B13000-memory.dmp

      Filesize

      652KB

    • memory/3784-86-0x00000000081F0000-0x000000000886A000-memory.dmp

      Filesize

      6.5MB

    • memory/3784-87-0x0000000007BA0000-0x0000000007BBA000-memory.dmp

      Filesize

      104KB

    • memory/3784-88-0x0000000007C10000-0x0000000007C1A000-memory.dmp

      Filesize

      40KB

    • memory/3784-89-0x0000000007E20000-0x0000000007EB6000-memory.dmp

      Filesize

      600KB

    • memory/3784-90-0x0000000007DA0000-0x0000000007DB1000-memory.dmp

      Filesize

      68KB

    • memory/3784-91-0x0000000007DD0000-0x0000000007DDE000-memory.dmp

      Filesize

      56KB

    • memory/3784-92-0x0000000007DE0000-0x0000000007DF4000-memory.dmp

      Filesize

      80KB

    • memory/3784-93-0x0000000007EE0000-0x0000000007EFA000-memory.dmp

      Filesize

      104KB

    • memory/3784-19-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/3784-17-0x0000000005A60000-0x0000000006088000-memory.dmp

      Filesize

      6.2MB

    • memory/3784-18-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/3784-101-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/3784-15-0x0000000002FA0000-0x0000000002FD6000-memory.dmp

      Filesize

      216KB