General

  • Target

    a856e5350e746c93706bb1ab5ea9ecf205fa1ac10c4363a248cd8b9ef456e66c

  • Size

    844KB

  • Sample

    220521-negf2sgffn

  • MD5

    6ca3db45bf4a118df5ede9f6cf474733

  • SHA1

    c09f78352b5c75babf80eee33b0bb23403ea5da1

  • SHA256

    a856e5350e746c93706bb1ab5ea9ecf205fa1ac10c4363a248cd8b9ef456e66c

  • SHA512

    4aa0944418972bc11d3c2764ad57e41fa8a18bf6041da3a3fe0b4c98c26d71df88dd85e36b525061bc6bc0e8443a34e6b67e25cf5fd083f2b6d4af698ea4a1bf

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.6.0 ################################################################# ### 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: 5/21/2022 11:36:49 AM MassLogger Started: 5/21/2022 11:36:42 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Order inquiry skmt042.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.samlogistics.pk
  • Port:
    587
  • Username:
    imp@samlogistics.pk
  • Password:
    Seaimport121@

Targets

    • Target

      Order inquiry skmt042.exe

    • Size

      886KB

    • MD5

      293669a0b90d7bc20d639c077517ef93

    • SHA1

      dbe8051a4f25ee4716297a36295cafb4e46c951c

    • SHA256

      f6df04b1b109a5d525073529a3877c3df598f9fcb62278a82412fc7736ed1ba7

    • SHA512

      1fbd62362ff5769bb07557a498c85eab818e4916a33aab2cc65dee5566ae3a6bc6b0761e943ea7d2551a70f7609881b8d3c23c1f69a60751ff1c80749079165a

    • 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.

    • Modifies visibility of file extensions in Explorer

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Hidden Files and Directories

1
T1158

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks