General

  • Target

    382292e13fba8db3e1e50b6d7e604274a70c07418e09fa9b3b1532b20df6c6d7

  • Size

    418KB

  • Sample

    220327-bhzqksbfb7

  • MD5

    1fb9ed11df573b8d7b760c35555303f8

  • SHA1

    0ff20a1f73b225c8efc056fd38bbc71b7110a666

  • SHA256

    382292e13fba8db3e1e50b6d7e604274a70c07418e09fa9b3b1532b20df6c6d7

  • SHA512

    7ab5dd57f8969570537e89397b8151e0f9eb3e99da73c53a403c0aa92806729a2bc7b9e35e9d669057e9a24d6bce20254dd6cc1937e545ec7db30c57c6f9af1d

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.diamondassetinvest.com/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    Kilimanjaro@123

Targets

    • Target

      382292e13fba8db3e1e50b6d7e604274a70c07418e09fa9b3b1532b20df6c6d7

    • Size

      418KB

    • MD5

      1fb9ed11df573b8d7b760c35555303f8

    • SHA1

      0ff20a1f73b225c8efc056fd38bbc71b7110a666

    • SHA256

      382292e13fba8db3e1e50b6d7e604274a70c07418e09fa9b3b1532b20df6c6d7

    • SHA512

      7ab5dd57f8969570537e89397b8151e0f9eb3e99da73c53a403c0aa92806729a2bc7b9e35e9d669057e9a24d6bce20254dd6cc1937e545ec7db30c57c6f9af1d

    • Matiex

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

    • Matiex Main Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Drops startup file

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • 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

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks