Analysis

  • max time kernel
    148s
  • 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 08:29

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 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 23 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:988
    • 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:2940
    • 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:4560
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp97BC.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2720
    • 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:5024
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9DB7.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:624
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA0A6.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:8

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

    0712b4f8c16a9f12dd090fb4af1e3fdf

    SHA1

    95313028021f453bf76ce6717ec096f858736b4d

    SHA256

    489e28f8924b6ebfc63fb31456b855e8715114c32d3a43a534fbb7fb2b34594c

    SHA512

    32e67ffa0e312adda823ce6ec448d734bd56561f64689d874edee6720aff88aef153fdde9647c6b328b7aca79f2aa06d96f44a189414aeb4a5c6131fad6ebbb1

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oedvthug.n1u.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp97BC.tmp

    Filesize

    1KB

    MD5

    eb191f331a938125005e0de35289d1be

    SHA1

    9f036798936f34fa5b483f4e47f3ee80afb72b23

    SHA256

    04e80553000a88cae1b459ac57cc5977a59766c001d0223a5ff19b7a44a96cd6

    SHA512

    fbc9bc540c2d420541adba4f15523d0b17045c5833eb9b7d2163c4c95d737a5045a18f3f8cbc7a5b0455df8e06d8f20ccbb0ca85acd0f48b886a19b96122f014

  • C:\Users\Admin\AppData\Local\Temp\tmp9DB7.tmp

    Filesize

    1KB

    MD5

    8cad1b41587ced0f1e74396794f31d58

    SHA1

    11054bf74fcf5e8e412768035e4dae43aa7b710f

    SHA256

    3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

    SHA512

    99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

  • C:\Users\Admin\AppData\Local\Temp\tmpA0A6.tmp

    Filesize

    1KB

    MD5

    2271642ca970891700e3f48439739ed8

    SHA1

    cd472df2349f7db9e1e460d0ee28acd97b8a8793

    SHA256

    7aba66abbcb0b13455609174db23aed495a9adbef0e0acd28baa9c92445eda68

    SHA512

    4669a4ef8ec28cdb852ffc1401576b1bf9a9d837797d7d92bc88c18b3097404f36854e50167b309706fef400cabc43c876569ce2797ba85eb169a2783b8fe807

  • memory/988-5-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/988-18-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/988-8-0x0000000005A60000-0x0000000005A76000-memory.dmp

    Filesize

    88KB

  • memory/988-9-0x0000000006A70000-0x0000000006AEC000-memory.dmp

    Filesize

    496KB

  • memory/988-10-0x00000000090E0000-0x000000000917C000-memory.dmp

    Filesize

    624KB

  • memory/988-11-0x000000007503E000-0x000000007503F000-memory.dmp

    Filesize

    4KB

  • memory/988-6-0x00000000057D0000-0x00000000057EE000-memory.dmp

    Filesize

    120KB

  • memory/988-7-0x0000000005A30000-0x0000000005A40000-memory.dmp

    Filesize

    64KB

  • memory/988-26-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/988-4-0x00000000056A0000-0x00000000056AA000-memory.dmp

    Filesize

    40KB

  • memory/988-3-0x0000000005500000-0x0000000005592000-memory.dmp

    Filesize

    584KB

  • memory/988-2-0x0000000005AB0000-0x0000000006054000-memory.dmp

    Filesize

    5.6MB

  • memory/988-0-0x000000007503E000-0x000000007503F000-memory.dmp

    Filesize

    4KB

  • memory/988-1-0x0000000000B40000-0x0000000000C32000-memory.dmp

    Filesize

    968KB

  • memory/2940-49-0x00000000066D0000-0x00000000066EE000-memory.dmp

    Filesize

    120KB

  • memory/2940-74-0x00000000079F0000-0x0000000007A93000-memory.dmp

    Filesize

    652KB

  • memory/2940-29-0x00000000061A0000-0x0000000006206000-memory.dmp

    Filesize

    408KB

  • memory/2940-28-0x0000000006130000-0x0000000006196000-memory.dmp

    Filesize

    408KB

  • memory/2940-27-0x0000000005910000-0x0000000005932000-memory.dmp

    Filesize

    136KB

  • memory/2940-16-0x0000000002EC0000-0x0000000002EF6000-memory.dmp

    Filesize

    216KB

  • memory/2940-99-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2940-17-0x0000000005A90000-0x00000000060B8000-memory.dmp

    Filesize

    6.2MB

  • memory/2940-50-0x0000000006890000-0x00000000068DC000-memory.dmp

    Filesize

    304KB

  • memory/2940-20-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2940-19-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2940-93-0x0000000007E30000-0x0000000007E38000-memory.dmp

    Filesize

    32KB

  • memory/2940-92-0x0000000007E50000-0x0000000007E6A000-memory.dmp

    Filesize

    104KB

  • memory/2940-91-0x0000000007D50000-0x0000000007D64000-memory.dmp

    Filesize

    80KB

  • memory/2940-90-0x0000000007D40000-0x0000000007D4E000-memory.dmp

    Filesize

    56KB

  • memory/2940-62-0x0000000006DA0000-0x0000000006DD2000-memory.dmp

    Filesize

    200KB

  • memory/2940-73-0x0000000006D80000-0x0000000006D9E000-memory.dmp

    Filesize

    120KB

  • memory/2940-79-0x0000000007CF0000-0x0000000007D01000-memory.dmp

    Filesize

    68KB

  • memory/2940-63-0x00000000714C0000-0x000000007150C000-memory.dmp

    Filesize

    304KB

  • memory/2940-75-0x0000000008130000-0x00000000087AA000-memory.dmp

    Filesize

    6.5MB

  • memory/2940-76-0x0000000007AF0000-0x0000000007B0A000-memory.dmp

    Filesize

    104KB

  • memory/2940-77-0x0000000007B60000-0x0000000007B6A000-memory.dmp

    Filesize

    40KB

  • memory/2940-78-0x0000000007D70000-0x0000000007E06000-memory.dmp

    Filesize

    600KB

  • memory/4560-80-0x00000000714C0000-0x000000007150C000-memory.dmp

    Filesize

    304KB

  • memory/4560-22-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4560-100-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4560-23-0x0000000075030000-0x00000000757E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4560-30-0x00000000054D0000-0x0000000005824000-memory.dmp

    Filesize

    3.3MB

  • memory/5024-24-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/5024-60-0x0000000005860000-0x000000000587E000-memory.dmp

    Filesize

    120KB

  • memory/5024-61-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

    Filesize

    40KB

  • memory/5024-58-0x00000000055E0000-0x00000000055EA000-memory.dmp

    Filesize

    40KB

  • memory/5024-59-0x0000000005820000-0x000000000582C000-memory.dmp

    Filesize

    48KB