Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 13:46

General

  • Target

    14239732dbddfe922c297fdeac56a062.exe

  • Size

    626KB

  • MD5

    14239732dbddfe922c297fdeac56a062

  • SHA1

    3f4f6454c4a2c1c5d1e10d5f841ce14eef00a785

  • SHA256

    1805439355f48464312b4f9c0e16301c5f211c204e197c2000e7342c8db95c00

  • SHA512

    87125027fe82df355f6461e540afbedc68372ff2b29ee1531d3c6f42144d993ee044b68488c8b0144cecd6c74cbd964f5445fee19954167e2301ff19e9e3e628

  • SSDEEP

    12288:glYifTsdxUde52iuVHaARloUgtGuFxmwk2BUY0Yk/a7LG1N7DpA:PiYd5uVHaAlhgtfvBUYuqLG1JDW

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newsddawork.3utilities.com:1620

maxlogs.webhop.me:1620

Mutex

1fa46b72-10f9-4da3-bc15-84dde165706d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    maxlogs.webhop.me

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-02-17T03:41:10.727034736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1620

  • default_group

    NewBin

  • 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

    1fa46b72-10f9-4da3-bc15-84dde165706d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newsddawork.3utilities.com

  • 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.

  • 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
  • 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\14239732dbddfe922c297fdeac56a062.exe
    "C:\Users\Admin\AppData\Local\Temp\14239732dbddfe922c297fdeac56a062.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dgKDUvhlvCiVpa.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4808
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dgKDUvhlvCiVpa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C49.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4740
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:4164

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fz4ewi0h.4rc.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp5C49.tmp
    Filesize

    1KB

    MD5

    60ab298fa3d650274e9c635652ff411b

    SHA1

    915bd7cf44fe67f72920bbe91b9343ed2a968a87

    SHA256

    35e9a6345d9bb7a27b27f694334bacef252f6fb9adafba82c9d498cf69d39cee

    SHA512

    a2dfc981001c07c13db7f0702026f6f9e54333cfee91088b3575d281c9cc23fb038e6f0e8fca67bb7b1a46ddd7f5727eebbeeed97b42270cb25a1ffa71b60d0d

  • memory/2356-6-0x0000000005950000-0x00000000059EC000-memory.dmp
    Filesize

    624KB

  • memory/2356-3-0x0000000005700000-0x0000000005792000-memory.dmp
    Filesize

    584KB

  • memory/2356-4-0x00000000056F0000-0x00000000056FA000-memory.dmp
    Filesize

    40KB

  • memory/2356-5-0x0000000074D50000-0x0000000075500000-memory.dmp
    Filesize

    7.7MB

  • memory/2356-2-0x0000000005C10000-0x00000000061B4000-memory.dmp
    Filesize

    5.6MB

  • memory/2356-7-0x0000000005BA0000-0x0000000005BBA000-memory.dmp
    Filesize

    104KB

  • memory/2356-8-0x0000000005BC0000-0x0000000005BD0000-memory.dmp
    Filesize

    64KB

  • memory/2356-9-0x0000000006C80000-0x0000000006CFA000-memory.dmp
    Filesize

    488KB

  • memory/2356-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp
    Filesize

    4KB

  • memory/2356-36-0x0000000074D50000-0x0000000075500000-memory.dmp
    Filesize

    7.7MB

  • memory/2356-1-0x0000000000D80000-0x0000000000E22000-memory.dmp
    Filesize

    648KB

  • memory/4164-68-0x0000000006800000-0x0000000006812000-memory.dmp
    Filesize

    72KB

  • memory/4164-69-0x0000000006810000-0x000000000682A000-memory.dmp
    Filesize

    104KB

  • memory/4164-89-0x0000000074D50000-0x0000000075500000-memory.dmp
    Filesize

    7.7MB

  • memory/4164-70-0x0000000006840000-0x000000000684E000-memory.dmp
    Filesize

    56KB

  • memory/4164-72-0x0000000006860000-0x000000000686C000-memory.dmp
    Filesize

    48KB

  • memory/4164-19-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/4164-75-0x0000000006890000-0x00000000068A0000-memory.dmp
    Filesize

    64KB

  • memory/4164-31-0x0000000074D50000-0x0000000075500000-memory.dmp
    Filesize

    7.7MB

  • memory/4164-76-0x00000000068B0000-0x00000000068C4000-memory.dmp
    Filesize

    80KB

  • memory/4164-77-0x00000000068D0000-0x00000000068DE000-memory.dmp
    Filesize

    56KB

  • memory/4164-78-0x00000000068E0000-0x000000000690E000-memory.dmp
    Filesize

    184KB

  • memory/4164-79-0x0000000006920000-0x0000000006934000-memory.dmp
    Filesize

    80KB

  • memory/4164-73-0x0000000006870000-0x000000000687E000-memory.dmp
    Filesize

    56KB

  • memory/4164-42-0x0000000005840000-0x000000000585E000-memory.dmp
    Filesize

    120KB

  • memory/4164-43-0x0000000005FB0000-0x0000000005FBA000-memory.dmp
    Filesize

    40KB

  • memory/4164-41-0x0000000005830000-0x000000000583A000-memory.dmp
    Filesize

    40KB

  • memory/4164-74-0x0000000006880000-0x0000000006894000-memory.dmp
    Filesize

    80KB

  • memory/4164-71-0x0000000006850000-0x0000000006862000-memory.dmp
    Filesize

    72KB

  • memory/4808-38-0x0000000005C50000-0x0000000005C9C000-memory.dmp
    Filesize

    304KB

  • memory/4808-46-0x0000000075600000-0x000000007564C000-memory.dmp
    Filesize

    304KB

  • memory/4808-58-0x0000000007520000-0x0000000007B9A000-memory.dmp
    Filesize

    6.5MB

  • memory/4808-59-0x0000000006EE0000-0x0000000006EFA000-memory.dmp
    Filesize

    104KB

  • memory/4808-60-0x0000000006F50000-0x0000000006F5A000-memory.dmp
    Filesize

    40KB

  • memory/4808-61-0x0000000007160000-0x00000000071F6000-memory.dmp
    Filesize

    600KB

  • memory/4808-62-0x00000000070E0000-0x00000000070F1000-memory.dmp
    Filesize

    68KB

  • memory/4808-63-0x0000000007110000-0x000000000711E000-memory.dmp
    Filesize

    56KB

  • memory/4808-64-0x0000000007120000-0x0000000007134000-memory.dmp
    Filesize

    80KB

  • memory/4808-65-0x0000000007220000-0x000000000723A000-memory.dmp
    Filesize

    104KB

  • memory/4808-66-0x0000000007200000-0x0000000007208000-memory.dmp
    Filesize

    32KB

  • memory/4808-56-0x00000000061A0000-0x00000000061BE000-memory.dmp
    Filesize

    120KB

  • memory/4808-14-0x00000000022A0000-0x00000000022D6000-memory.dmp
    Filesize

    216KB

  • memory/4808-57-0x0000000006BB0000-0x0000000006C53000-memory.dmp
    Filesize

    652KB

  • memory/4808-45-0x0000000006B70000-0x0000000006BA2000-memory.dmp
    Filesize

    200KB

  • memory/4808-37-0x0000000005BA0000-0x0000000005BBE000-memory.dmp
    Filesize

    120KB

  • memory/4808-22-0x0000000074D50000-0x0000000075500000-memory.dmp
    Filesize

    7.7MB

  • memory/4808-24-0x0000000074D50000-0x0000000075500000-memory.dmp
    Filesize

    7.7MB

  • memory/4808-17-0x0000000004CE0000-0x0000000005308000-memory.dmp
    Filesize

    6.2MB

  • memory/4808-25-0x0000000005580000-0x00000000058D4000-memory.dmp
    Filesize

    3.3MB

  • memory/4808-16-0x0000000074D50000-0x0000000075500000-memory.dmp
    Filesize

    7.7MB

  • memory/4808-18-0x0000000004BF0000-0x0000000004C12000-memory.dmp
    Filesize

    136KB

  • memory/4808-20-0x0000000005310000-0x0000000005376000-memory.dmp
    Filesize

    408KB

  • memory/4808-82-0x0000000074D50000-0x0000000075500000-memory.dmp
    Filesize

    7.7MB

  • memory/4808-21-0x0000000005480000-0x00000000054E6000-memory.dmp
    Filesize

    408KB