General

  • Target

    bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be

  • Size

    923KB

  • Sample

    220524-ve1m9aabe8

  • MD5

    22a544c96d4373c1bb70ab10616d6dfc

  • SHA1

    24d6958135e39dd8ac536ebc6385f200566cfa11

  • SHA256

    bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be

  • SHA512

    9530ec552ef5380087161157530f5d9b5c8640d656e962e733b7c94cfa646e1f861cccbcb6a4cd583801e5d4a6b258a2a931b28f07edeb353b6eb8ba223947f2

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.4.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 7 Ultimate 64bit CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/24/2022 5:30:26 PM MassLogger Started: 5/24/2022 5:30:19 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Targets

    • Target

      bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be

    • Size

      923KB

    • MD5

      22a544c96d4373c1bb70ab10616d6dfc

    • SHA1

      24d6958135e39dd8ac536ebc6385f200566cfa11

    • SHA256

      bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be

    • SHA512

      9530ec552ef5380087161157530f5d9b5c8640d656e962e733b7c94cfa646e1f861cccbcb6a4cd583801e5d4a6b258a2a931b28f07edeb353b6eb8ba223947f2

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    • MassLogger

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

    • 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.

    • 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

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Tasks