Analysis

  • max time kernel
    148s
  • max time network
    158s
  • 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 08:27

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:3976
    • 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:3232
    • 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:1612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpACDA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4684
    • 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:4580
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB47B.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4404
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBAD5.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:3276

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

    66ff273be01a9f8ecf83728aacfa8fe9

    SHA1

    e251f2d7018fed56847c7c7448fe517c4bb3a192

    SHA256

    6fa34a76659c94436690b12967db4723b199764560f88625d191ab193d800ac3

    SHA512

    353c2c8fccc94d6892561c92a034ac2c64148c3a13afff08ccdbfd870d1835234e6911cf25734e73e833ccce38fadf85c10635d23a5fb163933d215aa78bc5d2

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q0ee5k4a.0z5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    1KB

    MD5

    b7304fae98f79cca9a46e35ea6295e70

    SHA1

    c5728f90dc7eac1d991beb6b145a15acffe88f4b

    SHA256

    5af6ba12665361e283e4affac08134f50e2a855aa0e901554d5d906acb375305

    SHA512

    4accba4d47714ddcd52d2cf33c5af476933ec4b47b1a871f35e4760c6a8ec77875149c6e8afa8f0f10a83ba0adf0a684fcaf545af8b9a2129018b12e94a582af

  • C:\Users\Admin\AppData\Local\Temp\tmpB47B.tmp

    Filesize

    1KB

    MD5

    8cad1b41587ced0f1e74396794f31d58

    SHA1

    11054bf74fcf5e8e412768035e4dae43aa7b710f

    SHA256

    3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

    SHA512

    99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

  • C:\Users\Admin\AppData\Local\Temp\tmpBAD5.tmp

    Filesize

    1KB

    MD5

    a77c223a0fc492dccd6fb9975f7a8766

    SHA1

    5e813636ae9b8138d78919348a5da3a6e8bd74b5

    SHA256

    589df7325d42409c50827600fedb240171ee4bdab85916474a37800c2382829e

    SHA512

    315cea8fde3c594404f5d3c96c710af1214cff6d08ccdb40634a739e108ff810e02624735a2b8c3e3720157b4a55327f317c3c23c3a681b46b9ab0f19060f7c0

  • memory/1612-89-0x00000000070C0000-0x0000000007156000-memory.dmp

    Filesize

    600KB

  • memory/1612-88-0x0000000006C50000-0x0000000006C5A000-memory.dmp

    Filesize

    40KB

  • memory/1612-76-0x0000000070020000-0x000000007006C000-memory.dmp

    Filesize

    304KB

  • memory/1612-20-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/1612-92-0x0000000007030000-0x0000000007044000-memory.dmp

    Filesize

    80KB

  • memory/1612-99-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/1612-33-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/1612-25-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3232-22-0x0000000005270000-0x0000000005292000-memory.dmp

    Filesize

    136KB

  • memory/3232-90-0x0000000007640000-0x0000000007651000-memory.dmp

    Filesize

    68KB

  • memory/3232-17-0x0000000005390000-0x00000000059B8000-memory.dmp

    Filesize

    6.2MB

  • memory/3232-18-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3232-24-0x00000000059C0000-0x0000000005A26000-memory.dmp

    Filesize

    408KB

  • memory/3232-93-0x0000000007780000-0x000000000779A000-memory.dmp

    Filesize

    104KB

  • memory/3232-91-0x0000000007670000-0x000000000767E000-memory.dmp

    Filesize

    56KB

  • memory/3232-31-0x0000000005AF0000-0x0000000005E44000-memory.dmp

    Filesize

    3.3MB

  • memory/3232-15-0x0000000002800000-0x0000000002836000-memory.dmp

    Filesize

    216KB

  • memory/3232-23-0x0000000005310000-0x0000000005376000-memory.dmp

    Filesize

    408KB

  • memory/3232-19-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3232-64-0x0000000070020000-0x000000007006C000-memory.dmp

    Filesize

    304KB

  • memory/3232-86-0x0000000007A90000-0x000000000810A000-memory.dmp

    Filesize

    6.5MB

  • memory/3232-49-0x0000000006120000-0x000000000613E000-memory.dmp

    Filesize

    120KB

  • memory/3232-50-0x00000000061B0000-0x00000000061FC000-memory.dmp

    Filesize

    304KB

  • memory/3232-87-0x0000000007440000-0x000000000745A000-memory.dmp

    Filesize

    104KB

  • memory/3232-75-0x0000000007140000-0x00000000071E3000-memory.dmp

    Filesize

    652KB

  • memory/3232-94-0x0000000007760000-0x0000000007768000-memory.dmp

    Filesize

    32KB

  • memory/3232-101-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3232-74-0x0000000006700000-0x000000000671E000-memory.dmp

    Filesize

    120KB

  • memory/3232-63-0x0000000007100000-0x0000000007132000-memory.dmp

    Filesize

    200KB

  • memory/3976-8-0x0000000005060000-0x0000000005076000-memory.dmp

    Filesize

    88KB

  • memory/3976-3-0x0000000004C60000-0x0000000004CF2000-memory.dmp

    Filesize

    584KB

  • memory/3976-2-0x0000000005210000-0x00000000057B4000-memory.dmp

    Filesize

    5.6MB

  • memory/3976-1-0x0000000000250000-0x0000000000342000-memory.dmp

    Filesize

    968KB

  • memory/3976-7-0x0000000005030000-0x0000000005040000-memory.dmp

    Filesize

    64KB

  • memory/3976-9-0x0000000006180000-0x00000000061FC000-memory.dmp

    Filesize

    496KB

  • memory/3976-51-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3976-10-0x0000000008850000-0x00000000088EC000-memory.dmp

    Filesize

    624KB

  • memory/3976-6-0x0000000004FE0000-0x0000000004FFE000-memory.dmp

    Filesize

    120KB

  • memory/3976-5-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3976-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

    Filesize

    4KB

  • memory/3976-16-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

    Filesize

    4KB

  • memory/3976-4-0x0000000004C00000-0x0000000004C0A000-memory.dmp

    Filesize

    40KB

  • memory/3976-32-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4580-47-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/4580-60-0x0000000005600000-0x000000000560C000-memory.dmp

    Filesize

    48KB

  • memory/4580-61-0x0000000006650000-0x000000000666E000-memory.dmp

    Filesize

    120KB

  • memory/4580-62-0x0000000006770000-0x000000000677A000-memory.dmp

    Filesize

    40KB

  • memory/4580-59-0x00000000055F0000-0x00000000055FA000-memory.dmp

    Filesize

    40KB