Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-11-2024 07:10

General

  • Target

    1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe

  • Size

    767KB

  • MD5

    1ee4aca2ed3fbc7d17f8a86c751c1cc2

  • SHA1

    79fdfd56292f04c800afaa837b445e780355f3fb

  • SHA256

    a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80

  • SHA512

    2aa63b5a446b06d0e1149935ab3ea4803d797355ae4ac092abd5c3e7395bc9bb1dcd56f4489b144bffea42c916f9b22be250a09fd22634ba8de04a054cb7a910

  • SSDEEP

    12288:WAghZfmc9iuf6+U4yE4tbq8OzrO3D3GY76d0QQ9qUqkhwHGnpaU:bg/fz16+HyAziX700QQ9dqkhGsZ

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\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe
    "C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2800
    • 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\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4128
    • C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe
      "C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.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:808
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "LAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpECC1.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3632
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "LAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF463.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_frpnnw5q.d5p.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpECC1.tmp

    Filesize

    1KB

    MD5

    b7d9947c750fca37238cafd7f7757d04

    SHA1

    e1357883a9111f6be61d965cd9cfa549ade76028

    SHA256

    088fec6dd30bb05c34167b74e596e811ef2bc120b75393bfeae9115cdb3226bd

    SHA512

    878a8b4c1c2e150a4da4b5e79f28f3cbcf07dd7b501465fe59d2ce1e41b66131562f32c6461a153750bd8daf30feeba654d0d8d923e8185c4b7cf9746ad8915e

  • C:\Users\Admin\AppData\Local\Temp\tmpF463.tmp

    Filesize

    1KB

    MD5

    6b30dba7972c92c9a1b881e88c108b15

    SHA1

    f76207985cc5a1f70edb2fb5bd45678f195a4564

    SHA256

    578f5b0ff051f02f8e0a67fc3424dad554fa9489875475ea624fbb63eabfcbf7

    SHA512

    e3dd368937f863cb07453de12173580fb63b8d3983db7119c24860f227c89ded76401c47607f5b1134d215d46fe2b40d4bc3d7299374f1e8abecdeaefc7b9099

  • memory/808-41-0x0000000005050000-0x000000000505A000-memory.dmp

    Filesize

    40KB

  • memory/808-14-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/808-61-0x00000000053F0000-0x0000000005402000-memory.dmp

    Filesize

    72KB

  • memory/808-63-0x0000000006810000-0x000000000681E000-memory.dmp

    Filesize

    56KB

  • memory/808-72-0x00000000068E0000-0x00000000068F4000-memory.dmp

    Filesize

    80KB

  • memory/808-71-0x00000000068B0000-0x00000000068DE000-memory.dmp

    Filesize

    184KB

  • memory/808-70-0x00000000068A0000-0x00000000068AE000-memory.dmp

    Filesize

    56KB

  • memory/808-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/808-69-0x0000000006880000-0x0000000006894000-memory.dmp

    Filesize

    80KB

  • memory/808-68-0x0000000006860000-0x0000000006870000-memory.dmp

    Filesize

    64KB

  • memory/808-43-0x0000000005340000-0x000000000534A000-memory.dmp

    Filesize

    40KB

  • memory/808-42-0x0000000005060000-0x000000000507E000-memory.dmp

    Filesize

    120KB

  • memory/808-92-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/808-91-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/808-64-0x0000000006820000-0x0000000006832000-memory.dmp

    Filesize

    72KB

  • memory/808-65-0x0000000006830000-0x000000000683C000-memory.dmp

    Filesize

    48KB

  • memory/808-66-0x0000000006840000-0x000000000684E000-memory.dmp

    Filesize

    56KB

  • memory/808-24-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/808-62-0x00000000067F0000-0x000000000680A000-memory.dmp

    Filesize

    104KB

  • memory/808-67-0x0000000006850000-0x0000000006864000-memory.dmp

    Filesize

    80KB

  • memory/2800-4-0x0000000005560000-0x000000000556A000-memory.dmp

    Filesize

    40KB

  • memory/2800-2-0x0000000005AF0000-0x0000000006094000-memory.dmp

    Filesize

    5.6MB

  • memory/2800-1-0x00000000009F0000-0x0000000000AB6000-memory.dmp

    Filesize

    792KB

  • memory/2800-3-0x0000000005490000-0x0000000005522000-memory.dmp

    Filesize

    584KB

  • memory/2800-0-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

    Filesize

    4KB

  • memory/2800-15-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2800-5-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2800-10-0x0000000002DB0000-0x0000000002E2A000-memory.dmp

    Filesize

    488KB

  • memory/2800-9-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2800-8-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

    Filesize

    4KB

  • memory/2800-7-0x0000000006920000-0x000000000693C000-memory.dmp

    Filesize

    112KB

  • memory/2800-6-0x00000000057D0000-0x000000000586C000-memory.dmp

    Filesize

    624KB

  • memory/4128-16-0x0000000002210000-0x0000000002246000-memory.dmp

    Filesize

    216KB

  • memory/4128-59-0x0000000006B40000-0x0000000006BE3000-memory.dmp

    Filesize

    652KB

  • memory/4128-58-0x00000000060F0000-0x000000000610E000-memory.dmp

    Filesize

    120KB

  • memory/4128-48-0x0000000070B40000-0x0000000070B8C000-memory.dmp

    Filesize

    304KB

  • memory/4128-47-0x0000000006B00000-0x0000000006B32000-memory.dmp

    Filesize

    200KB

  • memory/4128-45-0x0000000005B70000-0x0000000005BBC000-memory.dmp

    Filesize

    304KB

  • memory/4128-44-0x0000000005B40000-0x0000000005B5E000-memory.dmp

    Filesize

    120KB

  • memory/4128-36-0x00000000054F0000-0x0000000005844000-memory.dmp

    Filesize

    3.3MB

  • memory/4128-23-0x0000000005340000-0x00000000053A6000-memory.dmp

    Filesize

    408KB

  • memory/4128-25-0x00000000053B0000-0x0000000005416000-memory.dmp

    Filesize

    408KB

  • memory/4128-22-0x0000000004B60000-0x0000000004B82000-memory.dmp

    Filesize

    136KB

  • memory/4128-19-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4128-73-0x00000000074A0000-0x0000000007B1A000-memory.dmp

    Filesize

    6.5MB

  • memory/4128-74-0x0000000006E60000-0x0000000006E7A000-memory.dmp

    Filesize

    104KB

  • memory/4128-75-0x0000000006ED0000-0x0000000006EDA000-memory.dmp

    Filesize

    40KB

  • memory/4128-76-0x00000000070E0000-0x0000000007176000-memory.dmp

    Filesize

    600KB

  • memory/4128-78-0x0000000007060000-0x0000000007071000-memory.dmp

    Filesize

    68KB

  • memory/4128-79-0x0000000007090000-0x000000000709E000-memory.dmp

    Filesize

    56KB

  • memory/4128-80-0x00000000070A0000-0x00000000070B4000-memory.dmp

    Filesize

    80KB

  • memory/4128-81-0x00000000071A0000-0x00000000071BA000-memory.dmp

    Filesize

    104KB

  • memory/4128-82-0x0000000007180000-0x0000000007188000-memory.dmp

    Filesize

    32KB

  • memory/4128-90-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4128-18-0x0000000004C10000-0x0000000005238000-memory.dmp

    Filesize

    6.2MB

  • memory/4128-17-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB