Overview

overview

10

Static

static

27938e3991...45.exe

windows7_x64

10

27938e3991...45.exe

windows10-2004_x64

6

Sharing

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General

  • Target

    27938e39910afbdc569c8a629736b4c0bbfdf2573d01d12664bf05661074df45

  • Size

    994KB

  • Sample

    220524-sxg8hsbfcr

  • MD5

    87b19be58879f1fc7052851a1a9192ff

  • SHA1

    ec586f8577f60677e9fc2ca9fe53174169f19c60

  • SHA256

    27938e39910afbdc569c8a629736b4c0bbfdf2573d01d12664bf05661074df45

  • SHA512

    1fcab9718ba6b2011e50a64ce59b03cb8a69cb523d4ad7dac56b1bc9e95740da38cab01311c0e591e341dfd8e87f040dbe00b21e95077c19172b770bde9b0cc7

Score
10/10
massloggercollectionpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\79FE0CC911\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 7 Ultimate 64bit CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/24/2022 4:13:15 PM MassLogger Started: 5/24/2022 4:13:04 PM Interval: 2 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe As Administrator: True

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    info@aksayyanggin.com
  • Password:
    1234567890$$

Targets

    • Target

      27938e39910afbdc569c8a629736b4c0bbfdf2573d01d12664bf05661074df45

    • Size

      994KB

    • MD5

      87b19be58879f1fc7052851a1a9192ff

    • SHA1

      ec586f8577f60677e9fc2ca9fe53174169f19c60

    • SHA256

      27938e39910afbdc569c8a629736b4c0bbfdf2573d01d12664bf05661074df45

    • SHA512

      1fcab9718ba6b2011e50a64ce59b03cb8a69cb523d4ad7dac56b1bc9e95740da38cab01311c0e591e341dfd8e87f040dbe00b21e95077c19172b770bde9b0cc7

    Score
    10/10
    massloggercollectionpersistenceransomwarespywarestealer

    • MassLogger

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

      stealerspywaremasslogger

    • MassLogger log file

      Detects a log file produced by MassLogger.

    • Checks computer location settings

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

    • 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

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks