General

  • Target

    28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe

  • Size

    613KB

  • Sample

    240408-bj8d4scc2t

  • MD5

    9352aacc0cfc4705e987ad1170255ddc

  • SHA1

    ad1e5fd69da5dc4dbb443f17d0ed8de9c7ca3db5

  • SHA256

    28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800

  • SHA512

    834b1bf62ea973144a90296863cc8464d7f9d21d6d35a209c5b66982ecf08ccee93a34e8ccc0b75b939d7b505cf315dbfb4b4b5116802830a722ab0904ff5376

  • SSDEEP

    12288:WWJGd7DhfUeUP3f7U80wqRI3RK9GIAZE4AP8D1jJlMpdz+D84i9:HJC7DNQfg85qRvZAZ1nD1mz+Y9

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe

    • Size

      613KB

    • MD5

      9352aacc0cfc4705e987ad1170255ddc

    • SHA1

      ad1e5fd69da5dc4dbb443f17d0ed8de9c7ca3db5

    • SHA256

      28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800

    • SHA512

      834b1bf62ea973144a90296863cc8464d7f9d21d6d35a209c5b66982ecf08ccee93a34e8ccc0b75b939d7b505cf315dbfb4b4b5116802830a722ab0904ff5376

    • SSDEEP

      12288:WWJGd7DhfUeUP3f7U80wqRI3RK9GIAZE4AP8D1jJlMpdz+D84i9:HJC7DNQfg85qRvZAZ1nD1mz+Y9

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables packed with or use KoiVM

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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