General

  • Target

    a30ef816bce43896b87dc946f00c0d75.bin

  • Size

    761KB

  • Sample

    240428-b3yn1sdf61

  • MD5

    d97e0fd5452c030ed75cb2e9835cba2b

  • SHA1

    e5d104d8fb3a5e75643ac31d8e01f5b312454cf5

  • SHA256

    04850af649dac3c9ef6ea1a4a3ca6244ae110a42443bee390c5c3414bbe840f2

  • SHA512

    9d4c86cdc761bb122ea6e3406dc015f510c34819a3319b5d58f732203997e044e507bf436528e1d8ae9b60f9f41e0d8aed07a0b01afaccd843ce1c52e30fae88

  • SSDEEP

    12288:jwIczI6CVB4/JZEXYbebVbeOT86NM7hlvF7ASrflUR58vWnQZOZuxHQURDj7wW85:8IesXYbeRvbNM9ltlrc2+3ZOPBj7q8nC

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Invoice.exe

    • Size

      822KB

    • MD5

      df0a67f2a0c162c5a5dee0a8fcd8ab22

    • SHA1

      07981693f5b38fa99a88aca0e13ba5b6022b1465

    • SHA256

      e62255f98543e0bb1abf017af13fd483e1382158021b7edde65fa55c1ad290cf

    • SHA512

      b62ea9a4710dfc855cfd47f2c0cb8787c9ea6b1159387431d1cc70b5989dd59086aaadd62e42fea9b21d28834b6ece20dc1715245762d026e48e315544529f75

    • SSDEEP

      12288:zPqnHvjNIrpf9rN/mc/CQw5PXdFPemY3kI26WE+34DO2IOxzV2SYm9nEix9H82rF:zyPjKr5BNDuXvfY0RfmIkzLNP5rJ

    • AgentTesla

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

    • Checks computer location settings

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

    • 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.

    • 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 Enterprise v15

Tasks