General

  • Target

    Remittance Advice.exe

  • Size

    858KB

  • Sample

    240517-fbnryshh87

  • MD5

    503a5a36a040a757c1e015009d86afc4

  • SHA1

    8104163e42cb6dd4bc9fa7de98f469df311dd553

  • SHA256

    09c2bde39a42e15cf277c4d992c091a5832a396cf314345e9c233d786dc3438a

  • SHA512

    f4cbb3e81d4c150e36a4b7deec4735422f26b7879c7b6c1cb41f9482dc10ec6182432214ff9a7a5d53d9cf63fb9b2ae0c4da98a59d72b69d7750ef09ee579e57

  • SSDEEP

    12288:Uc9HlMvnOgEPjxpbmoquAAV5eXowzUzAmw6xDsmqBYB+ZrFI7bBv9KlgMi:LenOg6jxpfVPYU6msmWNCbBvclgN

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Remittance Advice.exe

    • Size

      858KB

    • MD5

      503a5a36a040a757c1e015009d86afc4

    • SHA1

      8104163e42cb6dd4bc9fa7de98f469df311dd553

    • SHA256

      09c2bde39a42e15cf277c4d992c091a5832a396cf314345e9c233d786dc3438a

    • SHA512

      f4cbb3e81d4c150e36a4b7deec4735422f26b7879c7b6c1cb41f9482dc10ec6182432214ff9a7a5d53d9cf63fb9b2ae0c4da98a59d72b69d7750ef09ee579e57

    • SSDEEP

      12288:Uc9HlMvnOgEPjxpbmoquAAV5eXowzUzAmw6xDsmqBYB+ZrFI7bBv9KlgMi:LenOg6jxpfVPYU6msmWNCbBvclgN

    • AgentTesla

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

    • 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