General

  • Target

    DST261234.exe

  • Size

    572KB

  • Sample

    200716-lpvp53nm2a

  • MD5

    a5375147434baba2a3eb32606e9931b5

  • SHA1

    aa1ef84f0918adb4682452221772eb6a61c3618b

  • SHA256

    24a00145d774f6aac5b11be0188c88f4b9485e626f464e94bb355db0e2ad0f93

  • SHA512

    a6f72a783c18f97e3fdaaef23b9634c8b15bf46d8b393cb87490d55de8fbb535724e04904881a98038cca1108c5ccf8b6d1fff32e345e502d9941c29910732c2

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.blackpearl-tours.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    black@123instanbul

Targets

    • Target

      DST261234.exe

    • Size

      572KB

    • MD5

      a5375147434baba2a3eb32606e9931b5

    • SHA1

      aa1ef84f0918adb4682452221772eb6a61c3618b

    • SHA256

      24a00145d774f6aac5b11be0188c88f4b9485e626f464e94bb355db0e2ad0f93

    • SHA512

      a6f72a783c18f97e3fdaaef23b9634c8b15bf46d8b393cb87490d55de8fbb535724e04904881a98038cca1108c5ccf8b6d1fff32e345e502d9941c29910732c2

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks