Analysis

  • max time kernel
    149s
  • max time network
    157s
  • 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 08:36

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:4312
    • 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:2188
    • 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:1696
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC60F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1556
    • 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:1544
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCDA0.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4612
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD041.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:3764

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

    3f5e347b366943449d460b251422fe6c

    SHA1

    75a55dcb77e9c41f40c70db28cdef1efa27adf0c

    SHA256

    6af2a43743eee400028f5238749023f62362b0b555db7c23b66d57def8c47a7c

    SHA512

    8b1c85770c1ea263e494ad7775788f5a9f4d26595f66680761d556a758566fec1d0551408b52f0f13d6845b31780105a7fb64148fd9bd51d1ba3eb5e767ecada

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jfb32yho.dch.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpC60F.tmp
    Filesize

    1KB

    MD5

    b196f968b0d5cf29b66132ec32c43639

    SHA1

    6eb793678b3b221b49641476a3e2424767a02787

    SHA256

    f8f0cb8d6b1e45a9527cd1ab597546e81901020bcc03da82ea9036ba17078010

    SHA512

    3d124b1418014e8765e0bf320f7c9a96c67b0265ad855ebf782e2b5dd17d3be28f022e408ccce8a7d9f44f5681eff3676f3117ce25348b5266c80104e4eee816

  • C:\Users\Admin\AppData\Local\Temp\tmpCDA0.tmp
    Filesize

    1KB

    MD5

    8cad1b41587ced0f1e74396794f31d58

    SHA1

    11054bf74fcf5e8e412768035e4dae43aa7b710f

    SHA256

    3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

    SHA512

    99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

  • C:\Users\Admin\AppData\Local\Temp\tmpD041.tmp
    Filesize

    1KB

    MD5

    7a81ae69c04c8d95261eb5f490b7f869

    SHA1

    9f4f484d306fea15b2e7f9f16db660833bb1f8ce

    SHA256

    ce3933e772f663a834335cc2071e5e7b2d49a065b51d84a259054b8ef663e785

    SHA512

    8260ab83106752a488e164bbed63ef334d34399bc9a5c09a0cfceba6aef48eafe5c64e4dfbd353ac3edfff2523b16c2b0287d34833a293c4436e068fae656de8

  • memory/1544-47-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1544-59-0x00000000056E0000-0x00000000056EA000-memory.dmp
    Filesize

    40KB

  • memory/1544-60-0x0000000005890000-0x000000000589C000-memory.dmp
    Filesize

    48KB

  • memory/1544-62-0x0000000006880000-0x000000000688A000-memory.dmp
    Filesize

    40KB

  • memory/1544-61-0x0000000006730000-0x000000000674E000-memory.dmp
    Filesize

    120KB

  • memory/1696-63-0x0000000007220000-0x0000000007252000-memory.dmp
    Filesize

    200KB

  • memory/1696-51-0x0000000006280000-0x00000000062CC000-memory.dmp
    Filesize

    304KB

  • memory/1696-50-0x0000000006260000-0x000000000627E000-memory.dmp
    Filesize

    120KB

  • memory/1696-64-0x0000000074C50000-0x0000000074C9C000-memory.dmp
    Filesize

    304KB

  • memory/1696-46-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/1696-39-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/1696-45-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/1696-44-0x0000000005DB0000-0x0000000006104000-memory.dmp
    Filesize

    3.3MB

  • memory/1696-100-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/1696-23-0x0000000005B40000-0x0000000005BA6000-memory.dmp
    Filesize

    408KB

  • memory/2188-18-0x0000000005870000-0x0000000005E98000-memory.dmp
    Filesize

    6.2MB

  • memory/2188-91-0x0000000007BD0000-0x0000000007BDE000-memory.dmp
    Filesize

    56KB

  • memory/2188-22-0x0000000005EA0000-0x0000000005F06000-memory.dmp
    Filesize

    408KB

  • memory/2188-20-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/2188-19-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/2188-101-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/2188-94-0x0000000007CC0000-0x0000000007CC8000-memory.dmp
    Filesize

    32KB

  • memory/2188-93-0x0000000007CE0000-0x0000000007CFA000-memory.dmp
    Filesize

    104KB

  • memory/2188-16-0x0000000002D50000-0x0000000002D86000-memory.dmp
    Filesize

    216KB

  • memory/2188-92-0x0000000007BE0000-0x0000000007BF4000-memory.dmp
    Filesize

    80KB

  • memory/2188-21-0x00000000055C0000-0x00000000055E2000-memory.dmp
    Filesize

    136KB

  • memory/2188-90-0x0000000007BA0000-0x0000000007BB1000-memory.dmp
    Filesize

    68KB

  • memory/2188-89-0x0000000007C20000-0x0000000007CB6000-memory.dmp
    Filesize

    600KB

  • memory/2188-88-0x0000000007A10000-0x0000000007A1A000-memory.dmp
    Filesize

    40KB

  • memory/2188-86-0x0000000007FE0000-0x000000000865A000-memory.dmp
    Filesize

    6.5MB

  • memory/2188-87-0x00000000079A0000-0x00000000079BA000-memory.dmp
    Filesize

    104KB

  • memory/2188-74-0x0000000074C50000-0x0000000074C9C000-memory.dmp
    Filesize

    304KB

  • memory/2188-84-0x0000000007610000-0x000000000762E000-memory.dmp
    Filesize

    120KB

  • memory/2188-85-0x0000000007640000-0x00000000076E3000-memory.dmp
    Filesize

    652KB

  • memory/4312-10-0x0000000009700000-0x000000000979C000-memory.dmp
    Filesize

    624KB

  • memory/4312-4-0x00000000057B0000-0x00000000057BA000-memory.dmp
    Filesize

    40KB

  • memory/4312-6-0x0000000006D10000-0x0000000006D2E000-memory.dmp
    Filesize

    120KB

  • memory/4312-7-0x0000000006D60000-0x0000000006D70000-memory.dmp
    Filesize

    64KB

  • memory/4312-8-0x0000000006D90000-0x0000000006DA6000-memory.dmp
    Filesize

    88KB

  • memory/4312-9-0x00000000070A0000-0x000000000711C000-memory.dmp
    Filesize

    496KB

  • memory/4312-5-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/4312-14-0x00000000743CE000-0x00000000743CF000-memory.dmp
    Filesize

    4KB

  • memory/4312-3-0x00000000056F0000-0x0000000005782000-memory.dmp
    Filesize

    584KB

  • memory/4312-49-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB

  • memory/4312-0-0x00000000743CE000-0x00000000743CF000-memory.dmp
    Filesize

    4KB

  • memory/4312-2-0x0000000005BF0000-0x0000000006194000-memory.dmp
    Filesize

    5.6MB

  • memory/4312-1-0x0000000000D50000-0x0000000000E42000-memory.dmp
    Filesize

    968KB

  • memory/4312-17-0x00000000743C0000-0x0000000074B70000-memory.dmp
    Filesize

    7.7MB