General

  • Target

    f8a2b40eb0047a75223c29102904c1404f17d05ec2f6f775b9c1d1c53a98c509

  • Size

    3.5MB

  • Sample

    220415-s9166abdg8

  • MD5

    81fa89f38a91667c53cde89953e481bb

  • SHA1

    72dc08641ef8b25ddfbba2d2d8152bf919cdda94

  • SHA256

    f8a2b40eb0047a75223c29102904c1404f17d05ec2f6f775b9c1d1c53a98c509

  • SHA512

    579c4753f66e880f0cf6b52b8cac15cb2f2f28e6f799ae5f82808842e764b3de073085c9ac43bfc093af074fbb83e24dc295c2b34c1d6372799a0fae7ca752ed

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\8236ADF044\Log.txt

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 4/15/2022 7:43:13 PM MassLogger Started: 4/15/2022 7:43:10 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\f8a2b40eb0047a75223c29102904c1404f17d05ec2f6f775b9c1d1c53a98c509.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Downloader ||> Disabled <|| Binder ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> 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 ||> NA

Targets

    • Target

      f8a2b40eb0047a75223c29102904c1404f17d05ec2f6f775b9c1d1c53a98c509

    • Size

      3.5MB

    • MD5

      81fa89f38a91667c53cde89953e481bb

    • SHA1

      72dc08641ef8b25ddfbba2d2d8152bf919cdda94

    • SHA256

      f8a2b40eb0047a75223c29102904c1404f17d05ec2f6f775b9c1d1c53a98c509

    • SHA512

      579c4753f66e880f0cf6b52b8cac15cb2f2f28e6f799ae5f82808842e764b3de073085c9ac43bfc093af074fbb83e24dc295c2b34c1d6372799a0fae7ca752ed

    • 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

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks