General

  • Target

    13d108fb33fd10ace8666b716c47d9c7c1533be63ad6bb844d5c27721fc6845e

  • Size

    794KB

  • Sample

    220524-tbrqhagfd7

  • MD5

    64bd02186fd41fbfa61ff28cd2da6be9

  • SHA1

    913f37e0a4eaf8c5c46591ac2353ebab34c63380

  • SHA256

    13d108fb33fd10ace8666b716c47d9c7c1533be63ad6bb844d5c27721fc6845e

  • SHA512

    3cac421d78d25e28e878329084af92621bc51473b297a408df8bd2db2412955e76d334edf5821307081302918898b90a6f9642207adfc035974760d5a794284a

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.7.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 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 4:27:30 PM MassLogger Started: 5/24/2022 4:27:24 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\13d108fb33fd10ace8666b716c47d9c7c1533be63ad6bb844d5c27721fc6845e.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Extracted

Credentials

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

Targets

    • Target

      13d108fb33fd10ace8666b716c47d9c7c1533be63ad6bb844d5c27721fc6845e

    • Size

      794KB

    • MD5

      64bd02186fd41fbfa61ff28cd2da6be9

    • SHA1

      913f37e0a4eaf8c5c46591ac2353ebab34c63380

    • SHA256

      13d108fb33fd10ace8666b716c47d9c7c1533be63ad6bb844d5c27721fc6845e

    • SHA512

      3cac421d78d25e28e878329084af92621bc51473b297a408df8bd2db2412955e76d334edf5821307081302918898b90a6f9642207adfc035974760d5a794284a

    • 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.

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • 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