General

  • Target

    document1.xlsm.bat

  • Size

    2.5MB

  • Sample

    240508-tpwavacg8t

  • MD5

    b35dd1b0c0a8eacd45751dc8915c921b

  • SHA1

    69ec58d6a3fced2e8cf8afcad404e622f732ba64

  • SHA256

    35b1f297074282d80109a55ffa2250719618fb94d1ffb89f2af71088000e4842

  • SHA512

    c91063cfcd257d3e056c9625538106c27fbcf15963d1ab8c6fac5ef7ba90adfe14028dd1231157e9e8c4b2aaffa3a6995d78356bd70321999f4c3116332b2b8f

  • SSDEEP

    24576:B3tFuAl5/Sq8tSKHGvFu6n0RXTiRJQQ49ZJ7Mr1/rfU2fdvFShyJDgyxK5If6Yc0:9nKqoH36ncXsCyhAJXIyYCOi4bwFMV

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      document1.xlsm.bat

    • Size

      2.5MB

    • MD5

      b35dd1b0c0a8eacd45751dc8915c921b

    • SHA1

      69ec58d6a3fced2e8cf8afcad404e622f732ba64

    • SHA256

      35b1f297074282d80109a55ffa2250719618fb94d1ffb89f2af71088000e4842

    • SHA512

      c91063cfcd257d3e056c9625538106c27fbcf15963d1ab8c6fac5ef7ba90adfe14028dd1231157e9e8c4b2aaffa3a6995d78356bd70321999f4c3116332b2b8f

    • SSDEEP

      24576:B3tFuAl5/Sq8tSKHGvFu6n0RXTiRJQQ49ZJ7Mr1/rfU2fdvFShyJDgyxK5If6Yc0:9nKqoH36ncXsCyhAJXIyYCOi4bwFMV

    • AgentTesla

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

    • Detect ZGRat V1

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Executes dropped EXE

    • 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