General

  • Target

    file.exe

  • Size

    394KB

  • Sample

    221124-t1ykcafd38

  • MD5

    2a163403e00ba8afbe3c7a2e6df3e2e2

  • SHA1

    404038a796396209580a64a537b57695bbd9b175

  • SHA256

    4a8bba516cd171925cf36969b9e882c1029dbf88383463f9f646145f54fc35ef

  • SHA512

    6a7fdae05a3f2945ef2a8b87c1495dc00a69daa66355cd1009e0b924919f25314b47e541aefd1465c0ca6f2db0dc2b9796b056c1357aa67721ee044446d91187

  • SSDEEP

    6144:QBn12ZAxOykmTM3B8+EszGP2Raz6MlQBvN5JpENjKi7E1HyQlBZIs7Y8X8lkP:g2EcmfDsw2AH+7QYj1HyQJ37Ymj

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5655543251:AAF6zs8TWZ5wmyQhXrUZEpQjh6VaOy-aYoQ/

Targets

    • Target

      file.exe

    • Size

      394KB

    • MD5

      2a163403e00ba8afbe3c7a2e6df3e2e2

    • SHA1

      404038a796396209580a64a537b57695bbd9b175

    • SHA256

      4a8bba516cd171925cf36969b9e882c1029dbf88383463f9f646145f54fc35ef

    • SHA512

      6a7fdae05a3f2945ef2a8b87c1495dc00a69daa66355cd1009e0b924919f25314b47e541aefd1465c0ca6f2db0dc2b9796b056c1357aa67721ee044446d91187

    • SSDEEP

      6144:QBn12ZAxOykmTM3B8+EszGP2Raz6MlQBvN5JpENjKi7E1HyQlBZIs7Y8X8lkP:g2EcmfDsw2AH+7QYj1HyQJ37Ymj

    • AgentTesla

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks