General

  • Target

    c0917d27811cdd7a7c1267f87cf6135915adbfc7fd4a3f6e74998eef74fae31e

  • Size

    432KB

  • Sample

    220520-fs92hseabm

  • MD5

    937a447b796d4ed07f668c09a18e35a8

  • SHA1

    bd868b33a905906f46bee0ed427e064313d7b6ef

  • SHA256

    c0917d27811cdd7a7c1267f87cf6135915adbfc7fd4a3f6e74998eef74fae31e

  • SHA512

    8e3f6d69ee373dc8ca8d74d8449c0289a6622507123d4133df2d6fd8e51687314c195004fc82502960327aeca0662fc59819c813b94b596b2eea56fa66594fb3

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\781F780B4E\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.51 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: 5/20/2022 5:46:36 AM MassLogger Started: 5/20/2022 5:46:33 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\RegAsm.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> 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 ||> Disabled

Targets

    • Target

      Ekstre.exe

    • Size

      1.2MB

    • MD5

      4fa8f3fb34c79b408d7c511c892358cf

    • SHA1

      eded4cc6941f2ebf7d9b08bc98d05190c4d9e054

    • SHA256

      9343011118ad09e9a63a24adb5cc08f406ffc927230b1be998cb263ebf23eedd

    • SHA512

      832d9aaa4806edfdafba5fbcd6b46be87a9432ba5f56328b8254a8a8c2d0d5176a0eb2570c3fa36c0e0a94c27f9d28165e824bcd7249defabac6454b963633a8

    • MassLogger

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

    • MassLogger Main Payload

    • MassLogger log file

      Detects a log file produced by MassLogger.

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks