General

  • Target

    00c3cff2f322142766af113e8aaeabb7fbb7ca7e98d60e6e254ef5e651a9e03a

  • Size

    827KB

  • Sample

    220521-a8mchabea5

  • MD5

    95233ba486d243274e960b9a7548e84b

  • SHA1

    00de4c48f019b108b61f1c0dd2ccc82232147ca9

  • SHA256

    00c3cff2f322142766af113e8aaeabb7fbb7ca7e98d60e6e254ef5e651a9e03a

  • SHA512

    7d33bed405c994f8b01a2ffa43815744d3b69ea14e0c178b6eeef7b28e54e739fc6e26a26a8f6e7295ce1f949f31400561546dd5258ef76f3afe27f1e1cfda89

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\3B8E3C2477\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 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: 5/21/2022 3:16:59 AM MassLogger Started: 5/21/2022 3:16:49 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Inquiry List Details.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> 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

      Inquiry List Details.exe

    • Size

      868KB

    • MD5

      18441e9c6156df94b21556dab4ef4701

    • SHA1

      25b9a51950b21e8d86b56770a9d23225b1a5e40e

    • SHA256

      fb248d3c4b08dd0bef37e565fbe078a57f13b5214b8cafeccf42bdd50767678d

    • SHA512

      3719e583e8703f950fa9dc0c62badc4781aa6b5f2c585b1817cfe7f6cba39ba9f89b7f3571350aad60fe50c24b9f9c37ab1e5672aaf9b0ebe1361fac4ce833c4

    • 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.

    • Checks computer location settings

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

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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