General

  • Target

    44a661eff11b329b93eccf84e1eb9383201f51ac7751873ca740b46d7493edaf

  • Size

    206KB

  • Sample

    220307-mwllnadec9

  • MD5

    386f1bf4e2814eeee955fa8003fb7753

  • SHA1

    5549b5b787a80012e9d6da305567a77d790cc9a4

  • SHA256

    44a661eff11b329b93eccf84e1eb9383201f51ac7751873ca740b46d7493edaf

  • SHA512

    fb05890dd28745f3c294a591394e86b8aed61bc7b7dd265ea3bc147303d2b95808cf02093c6c628cb02a6607909415a84a1819c7998c1ec5f0e98bc8852b4509

Malware Config

Extracted

Family

matiex

Credentials

Targets

    • Target

      44a661eff11b329b93eccf84e1eb9383201f51ac7751873ca740b46d7493edaf

    • Size

      206KB

    • MD5

      386f1bf4e2814eeee955fa8003fb7753

    • SHA1

      5549b5b787a80012e9d6da305567a77d790cc9a4

    • SHA256

      44a661eff11b329b93eccf84e1eb9383201f51ac7751873ca740b46d7493edaf

    • SHA512

      fb05890dd28745f3c294a591394e86b8aed61bc7b7dd265ea3bc147303d2b95808cf02093c6c628cb02a6607909415a84a1819c7998c1ec5f0e98bc8852b4509

    • 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

    • Adds Run key to start application

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks