Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-11-2024 04:03

General

  • Target

    e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe

  • Size

    831KB

  • MD5

    f9f3ee35f62eba494f4f755850617a85

  • SHA1

    2f01785e036cb476d67249bef9881b0116912309

  • SHA256

    e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870

  • SHA512

    6a44351b520b9a6869b695d1fe31aadd73dc099358ada5ace0882d883b94ff83ae990b247fb68f9cbb09f12f8bacc3202e5f4a0c90a4c2bad218254d263a97e9

  • SSDEEP

    24576:zq0qvumN3gUCTcpVfFBbsuYqwnB5t7UG4DL:zqwmtgUZpVgpqwn17eDL

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

66.63.187.113:1664

Mutex

a376f716-2f77-4943-a431-3a3bcb53b7c0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    66.63.187.113

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-08-05T03:49:33.827385136Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1664

  • default_group

    CAT

  • 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

    a376f716-2f77-4943-a431-3a3bcb53b7c0

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    66.63.187.113

  • primary_dns_server

    8.8.8.8

  • 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.

  • Nanocore family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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
  • Checks whether UAC is enabled 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe
    "C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3960
    • 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\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5044
    • C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe
      "C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3664
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD707.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4452
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD91B.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_on3ezr3e.2vw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpD707.tmp

    Filesize

    1KB

    MD5

    7a5b2999f1100d2c6783bba14fbd9c1a

    SHA1

    5823601acfe4e5da055eb2a42364b85cb894ce2f

    SHA256

    f41bc60f4470994c3841458440cdeaf105afea2b5984d8742f8da4375babf2c3

    SHA512

    cee623fe27d8b4ad31b53e1587194b5b3316632f05572033c538db6b21cc2ce73f128bd8eb6476e355650d6ffaf9a7c4aeda4e71f3c8bfb7bacb07875428679e

  • C:\Users\Admin\AppData\Local\Temp\tmpD91B.tmp

    Filesize

    1KB

    MD5

    0479d5f304ef2d7e3c15fb24a99f88c1

    SHA1

    8edbb1450a656fac5f5e96779ffe440ee8c1aec9

    SHA256

    112557c2b2d0c669a3b115129dc32f005341e965330fa8f2ad3e5de1926594bc

    SHA512

    537e8d87e5cd975f0e69bb145f81d6e9d7b0d82eed143ac351304ea38577137386a51fdb7357ec6d641eb04ff5f51e249bba2db8a4b5bf2934d561394a4a3f15

  • memory/3664-69-0x0000000006A80000-0x0000000006A94000-memory.dmp

    Filesize

    80KB

  • memory/3664-45-0x00000000062B0000-0x00000000062BA000-memory.dmp

    Filesize

    40KB

  • memory/3664-65-0x0000000006A20000-0x0000000006A3A000-memory.dmp

    Filesize

    104KB

  • memory/3664-67-0x0000000006A60000-0x0000000006A72000-memory.dmp

    Filesize

    72KB

  • memory/3664-68-0x0000000006A70000-0x0000000006A7E000-memory.dmp

    Filesize

    56KB

  • memory/3664-74-0x0000000006B10000-0x0000000006B24000-memory.dmp

    Filesize

    80KB

  • memory/3664-44-0x0000000006180000-0x000000000619E000-memory.dmp

    Filesize

    120KB

  • memory/3664-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3664-73-0x0000000006AE0000-0x0000000006B0E000-memory.dmp

    Filesize

    184KB

  • memory/3664-14-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3664-64-0x0000000006A10000-0x0000000006A22000-memory.dmp

    Filesize

    72KB

  • memory/3664-91-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3664-90-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3664-43-0x0000000005600000-0x000000000560A000-memory.dmp

    Filesize

    40KB

  • memory/3664-72-0x0000000006AD0000-0x0000000006ADE000-memory.dmp

    Filesize

    56KB

  • memory/3664-66-0x0000000006A50000-0x0000000006A5E000-memory.dmp

    Filesize

    56KB

  • memory/3664-70-0x0000000006A90000-0x0000000006AA0000-memory.dmp

    Filesize

    64KB

  • memory/3664-26-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3664-71-0x0000000006AA0000-0x0000000006AB4000-memory.dmp

    Filesize

    80KB

  • memory/3960-3-0x00000000050B0000-0x0000000005142000-memory.dmp

    Filesize

    584KB

  • memory/3960-5-0x0000000005150000-0x000000000515A000-memory.dmp

    Filesize

    40KB

  • memory/3960-2-0x00000000057C0000-0x0000000005D64000-memory.dmp

    Filesize

    5.6MB

  • memory/3960-16-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3960-4-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3960-1-0x00000000005F0000-0x00000000006C6000-memory.dmp

    Filesize

    856KB

  • memory/3960-10-0x0000000002AE0000-0x0000000002B5A000-memory.dmp

    Filesize

    488KB

  • memory/3960-9-0x00000000064E0000-0x00000000064FC000-memory.dmp

    Filesize

    112KB

  • memory/3960-8-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3960-7-0x000000007502E000-0x000000007502F000-memory.dmp

    Filesize

    4KB

  • memory/3960-0-0x000000007502E000-0x000000007502F000-memory.dmp

    Filesize

    4KB

  • memory/3960-6-0x0000000005430000-0x00000000054CC000-memory.dmp

    Filesize

    624KB

  • memory/5044-19-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/5044-60-0x0000000007590000-0x0000000007C0A000-memory.dmp

    Filesize

    6.5MB

  • memory/5044-61-0x0000000006CA0000-0x0000000006CBA000-memory.dmp

    Filesize

    104KB

  • memory/5044-62-0x0000000006F20000-0x0000000006F2A000-memory.dmp

    Filesize

    40KB

  • memory/5044-59-0x0000000006B90000-0x0000000006C33000-memory.dmp

    Filesize

    652KB

  • memory/5044-58-0x00000000060D0000-0x00000000060EE000-memory.dmp

    Filesize

    120KB

  • memory/5044-47-0x0000000006B50000-0x0000000006B82000-memory.dmp

    Filesize

    200KB

  • memory/5044-48-0x0000000070BE0000-0x0000000070C2C000-memory.dmp

    Filesize

    304KB

  • memory/5044-89-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/5044-38-0x0000000005B90000-0x0000000005BAE000-memory.dmp

    Filesize

    120KB

  • memory/5044-39-0x0000000006130000-0x000000000617C000-memory.dmp

    Filesize

    304KB

  • memory/5044-22-0x0000000004CE0000-0x0000000004D46000-memory.dmp

    Filesize

    408KB

  • memory/5044-32-0x00000000055B0000-0x0000000005904000-memory.dmp

    Filesize

    3.3MB

  • memory/5044-24-0x0000000005540000-0x00000000055A6000-memory.dmp

    Filesize

    408KB

  • memory/5044-20-0x0000000004BC0000-0x0000000004BE2000-memory.dmp

    Filesize

    136KB

  • memory/5044-75-0x0000000007130000-0x00000000071C6000-memory.dmp

    Filesize

    600KB

  • memory/5044-76-0x00000000070B0000-0x00000000070C1000-memory.dmp

    Filesize

    68KB

  • memory/5044-78-0x00000000070E0000-0x00000000070EE000-memory.dmp

    Filesize

    56KB

  • memory/5044-79-0x00000000070F0000-0x0000000007104000-memory.dmp

    Filesize

    80KB

  • memory/5044-80-0x00000000071F0000-0x000000000720A000-memory.dmp

    Filesize

    104KB

  • memory/5044-81-0x00000000071D0000-0x00000000071D8000-memory.dmp

    Filesize

    32KB

  • memory/5044-18-0x0000000004E10000-0x0000000005438000-memory.dmp

    Filesize

    6.2MB

  • memory/5044-17-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/5044-15-0x0000000000D70000-0x0000000000DA6000-memory.dmp

    Filesize

    216KB