Overview

overview

10

Static

static

1

COTIZACIÓN.js

windows10-2004-x64

10

COTIZACIÓN.js

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    68MAmGem1369255.zip
  • Size 2.5MB
  • Sample260922-rylfwsvxcs
  • SHA256 bf7b8834e470d1fa310f0b58467c38edd897177864fb634359ac4ca789dd2ac7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
massloggercollectiondiscoveryexecutionpersistencespywarestealer

Malware Config

Extracted

Family

  • masslogger

Attributes
  • exfiltration_mode

    #SMTPEnabled

  • expire_time_date

    00-00-0000

  • host_password

    h5?hTg004_131

  • host_port

    587

  • host_receiver

    [email protected]

  • host_sender

    [email protected]

  • host_server

    mail.ciccarelli.com.ar

  • ssl_slate

    False

Targets

    • Target
      COTIZACIÓN.JS
    • Size 3.9MB
    • SHA256 8c2a616961c1ac3c67441c5eef688e536999aacb0161009a584c74f36bc6bcc7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    collectiondiscoveryexecutionmassloggerpersistencespywarestealer

    • Family: MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

      stealerspywaremasslogger

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

      spywarestealer

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses Microsoft Outlook profiles

      collection

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

      discovery

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

JavaScript

1
T1059.007

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Command and Control

Exfiltration

Impact

Tasks