General

  • Target

    d6a628fe234851cb3045421c715d20564d6838deeaa36385289e670e85f26daf

  • Size

    386KB

  • Sample

    220521-ndz7rsgfdr

  • MD5

    24d0e492ec508f017e50ca44c50fd437

  • SHA1

    35a0320aea5895e905961e1449eac1d76f2ef885

  • SHA256

    d6a628fe234851cb3045421c715d20564d6838deeaa36385289e670e85f26daf

  • SHA512

    fcaf2f571955e83487711ba957e79b2e6ffd7346a68935e7924a97605b93cb075a19c802cd38afa4e86648d0db66d220ec48cf20708501c0e859e56240cc42e3

Malware Config

Targets

    • Target

      News-Update.scr

    • Size

      566KB

    • MD5

      8db27a63baec87e325fe3245f6778790

    • SHA1

      c639dd9daf6f010142a37ef1fac0fbd8a00c3efd

    • SHA256

      8c254637c5c98fe6755a44e5ea6feba18d0a17c4ad53e8d791277390060c29e5

    • SHA512

      423c2b2d5400079f21025c5c2f0242aba1aeaa3fd9844b06678246e20fc65ae027dbad161ddbb2be10ca61fa992903b21e0d29cd3c415145b760e047377c1201

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • AgentTesla Payload

    • Checks computer location settings

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

    • 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

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks