General

  • Target

    Nghgisxtb.exe

  • Size

    407KB

  • Sample

    231205-t594yacg88

  • MD5

    913aa7a8d382f9195e8057f5592e47a9

  • SHA1

    538ea79a057fb8c0bd4f02c697fbefcffef87947

  • SHA256

    8879bff7f26b389b8d375928fc6095a3847f8602e00822e3f2f67705e2d85cc0

  • SHA512

    ef731541817fac134955e1e5bd632d78e5ac6b3aa9b148b4a5fb6f1acbda91c397a6f21665d91313a9d41ad2973ac0bd26f6784885f061d30d5e139503eb0ba6

  • SSDEEP

    12288:vTz+p0qIUakJE3iQ6ZeJfTSK7An9/dhiWSI:vTz+p0qIUakJKixZeZ8/dlS

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Nghgisxtb.exe

    • Size

      407KB

    • MD5

      913aa7a8d382f9195e8057f5592e47a9

    • SHA1

      538ea79a057fb8c0bd4f02c697fbefcffef87947

    • SHA256

      8879bff7f26b389b8d375928fc6095a3847f8602e00822e3f2f67705e2d85cc0

    • SHA512

      ef731541817fac134955e1e5bd632d78e5ac6b3aa9b148b4a5fb6f1acbda91c397a6f21665d91313a9d41ad2973ac0bd26f6784885f061d30d5e139503eb0ba6

    • SSDEEP

      12288:vTz+p0qIUakJE3iQ6ZeJfTSK7An9/dhiWSI:vTz+p0qIUakJKixZeZ8/dlS

    • AgentTesla

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

    • 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