General

  • Target

    81982f45f90c69f5fbdf0bb34273a99c1a9d1d8b1b51a307cb4b3dfa829bae62

  • Size

    495KB

  • Sample

    220525-bl7klahgap

  • MD5

    23060ccfc90d21321420bda396ce8f8e

  • SHA1

    69239688b9089a3ba073bf88e0fc60c9bbe0efcc

  • SHA256

    81982f45f90c69f5fbdf0bb34273a99c1a9d1d8b1b51a307cb4b3dfa829bae62

  • SHA512

    a45c413e5cba8e09c7f418af7c74070178c94acea4433ce240c0f8f1d961eab65dd52288a9b7dfbb479080486ba847b661cbcfe39bc9b7a209c91599f6b9424d

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v2.0.0.0 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 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: 5/25/2022 3:17:23 AM MassLogger Started: 5/25/2022 3:17:11 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\81982f45f90c69f5fbdf0bb34273a99c1a9d1d8b1b51a307cb4b3dfa829bae62.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Targets

    • Target

      81982f45f90c69f5fbdf0bb34273a99c1a9d1d8b1b51a307cb4b3dfa829bae62

    • Size

      495KB

    • MD5

      23060ccfc90d21321420bda396ce8f8e

    • SHA1

      69239688b9089a3ba073bf88e0fc60c9bbe0efcc

    • SHA256

      81982f45f90c69f5fbdf0bb34273a99c1a9d1d8b1b51a307cb4b3dfa829bae62

    • SHA512

      a45c413e5cba8e09c7f418af7c74070178c94acea4433ce240c0f8f1d961eab65dd52288a9b7dfbb479080486ba847b661cbcfe39bc9b7a209c91599f6b9424d

    • 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

    • Looks up external IP address via web service

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

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