General

  • Target

    e97eb4c69c852bc11196e42af00aac74903f6093f253bdab650df2c747df1087

  • Size

    970KB

  • Sample

    220418-my46safeg4

  • MD5

    4dec4e571974acfd903c9c9e6d554e19

  • SHA1

    b7503c0e814605983b0b896dc71f354be2f410a2

  • SHA256

    e97eb4c69c852bc11196e42af00aac74903f6093f253bdab650df2c747df1087

  • SHA512

    089772ffba6de7c359b1cb8c49b1cd6b6c002a932c01bf74f49023df515ae241429821184cc59e168e52e003730f89706b148c716954a00594b70f603aa0969d

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    vbdftvthblxjhmhi

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    vbdftvthblxjhmhi

Targets

    • Target

      e97eb4c69c852bc11196e42af00aac74903f6093f253bdab650df2c747df1087

    • Size

      970KB

    • MD5

      4dec4e571974acfd903c9c9e6d554e19

    • SHA1

      b7503c0e814605983b0b896dc71f354be2f410a2

    • SHA256

      e97eb4c69c852bc11196e42af00aac74903f6093f253bdab650df2c747df1087

    • SHA512

      089772ffba6de7c359b1cb8c49b1cd6b6c002a932c01bf74f49023df515ae241429821184cc59e168e52e003730f89706b148c716954a00594b70f603aa0969d

    • Matiex

      Matiex is a keylogger and infostealer first seen in July 2020.

    • Matiex Main Payload

    • Checks computer location settings

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

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks