General

  • Target

    c11fd5e849339af078eb9ff7344b4d45f8d86e45a11285142ecfe28fbd01b243

  • Size

    336KB

  • Sample

    240430-bepffaff45

  • MD5

    fc69aae977bd3c5a56d4acce831dbac2

  • SHA1

    fb86b1fca4340e6ac163aeb638acd83dff4f52f5

  • SHA256

    c11fd5e849339af078eb9ff7344b4d45f8d86e45a11285142ecfe28fbd01b243

  • SHA512

    ea24470a046528a8649e64658f49a85543820e807437eb0ff79a1e92232641f2b215b46fc7fa2b57f4074ea3b9e3be42463c23ae832dbcaf1319cb91cf5dc4c5

  • SSDEEP

    6144:2EXaFJkKXiDU7wI4wdY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbVy4MINAwKY:2AaFiKXKPwk3bVy4MIKwKBZ5QjKss

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      c11fd5e849339af078eb9ff7344b4d45f8d86e45a11285142ecfe28fbd01b243

    • Size

      336KB

    • MD5

      fc69aae977bd3c5a56d4acce831dbac2

    • SHA1

      fb86b1fca4340e6ac163aeb638acd83dff4f52f5

    • SHA256

      c11fd5e849339af078eb9ff7344b4d45f8d86e45a11285142ecfe28fbd01b243

    • SHA512

      ea24470a046528a8649e64658f49a85543820e807437eb0ff79a1e92232641f2b215b46fc7fa2b57f4074ea3b9e3be42463c23ae832dbcaf1319cb91cf5dc4c5

    • SSDEEP

      6144:2EXaFJkKXiDU7wI4wdY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbVy4MINAwKY:2AaFiKXKPwk3bVy4MIKwKBZ5QjKss

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Abuses OpenXML format to download file from external location

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • 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 Enterprise v15

Tasks