Overview

overview

10

Static

static

1

NTS_eTaxIn...df.exe

windows7-x64

10

NTS_eTaxIn...df.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    NTS_eTaxInvoice 3-2-2023·pdf.exe

  • Size

    332KB

  • Sample

    230203-bstx3sch6s

  • MD5

    a8cd6b4bb8c742162581ed1a314cfe9f

  • SHA1

    dfc294e2ff0938e470621cbe35fecbf5eb75c631

  • SHA256

    c18236bbfdf439b697501aaba8a7f8878902d412e2aa0f23df20161eb500f158

  • SHA512

    cfe27e7ec63881b64b431275cd59995850e13f7d9dba99c8f69c34462610805149246c78a30f7c62e9aa3533b8c7e1143f9e9705c1142c416ce07a2baecf5345

  • SSDEEP

    6144:twq3NpWyFr7S0HFwnNHF6KzMw4y7H2C00LUfGAqOolFhNHdKCeebZRueNk8K:tzayFfDwNgoMAz5UfGaMhNQ/6ZRueZK

Score
10/10
guloadernanocorecollectiondownloaderevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

masterpat0nms672ns.duckdns.org:3498

Mutex

e277811f-20a3-49b6-ae15-cbb22e96ee2f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2022-11-13T22:04:22.529311336Z

  • 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

    3498

  • default_group

    Default

  • 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

    e277811f-20a3-49b6-ae15-cbb22e96ee2f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    masterpat0nms672ns.duckdns.org

  • primary_dns_server

    masterpat0nms672ns.duckdns.org

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    15

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      NTS_eTaxInvoice 3-2-2023·pdf.exe

    • Size

      332KB

    • MD5

      a8cd6b4bb8c742162581ed1a314cfe9f

    • SHA1

      dfc294e2ff0938e470621cbe35fecbf5eb75c631

    • SHA256

      c18236bbfdf439b697501aaba8a7f8878902d412e2aa0f23df20161eb500f158

    • SHA512

      cfe27e7ec63881b64b431275cd59995850e13f7d9dba99c8f69c34462610805149246c78a30f7c62e9aa3533b8c7e1143f9e9705c1142c416ce07a2baecf5345

    • SSDEEP

      6144:twq3NpWyFr7S0HFwnNHF6KzMw4y7H2C00LUfGAqOolFhNHdKCeebZRueNk8K:tzayFfDwNgoMAz5UfGaMhNQ/6ZRueZK

    Score
    10/10
    guloadernanocoredownloaderkeyloggerpersistencespywarestealertrojancollectionevasion

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

      keyloggertrojanstealerspywarenanocore

    • UAC bypass

      evasiontrojan

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook accounts

      collection

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Bypass User Account Control

1
T1088

Scheduled Task

1
T1053

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Scripting

1
T1064

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks