General

  • Target

    40396e0b47a75f9c6c49a7b1b0d4b71b4999c1ffbfc6c4053e7d5606de75169b

  • Size

    673KB

  • Sample

    220524-zy4lgagcc9

  • MD5

    f4f631e39cbe07cd2c95f0095b50fb3d

  • SHA1

    b4921da5ae410b94e6c1c5087f0635a001875821

  • SHA256

    40396e0b47a75f9c6c49a7b1b0d4b71b4999c1ffbfc6c4053e7d5606de75169b

  • SHA512

    a76d6809ab4d798a12a55d260fc74cc2259aea73ae33137fc15c09e2064ffeb644d45115e4bce724110ae480b12bda6ff2643ca6ccc494039560c17adaae38c8

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/24/2022 11:10:05 PM MassLogger Started: 5/24/2022 11:09:57 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\40396e0b47a75f9c6c49a7b1b0d4b71b4999c1ffbfc6c4053e7d5606de75169b.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> Disabled <|| Bot Killer ||> Disabled <|| Window Searcher ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> Disabled

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    tonyrikardo@yandex.com
  • Password:
    akachukwu123@

Targets

    • Target

      40396e0b47a75f9c6c49a7b1b0d4b71b4999c1ffbfc6c4053e7d5606de75169b

    • Size

      673KB

    • MD5

      f4f631e39cbe07cd2c95f0095b50fb3d

    • SHA1

      b4921da5ae410b94e6c1c5087f0635a001875821

    • SHA256

      40396e0b47a75f9c6c49a7b1b0d4b71b4999c1ffbfc6c4053e7d5606de75169b

    • SHA512

      a76d6809ab4d798a12a55d260fc74cc2259aea73ae33137fc15c09e2064ffeb644d45115e4bce724110ae480b12bda6ff2643ca6ccc494039560c17adaae38c8

    • MassLogger

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

    • 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.

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks