General

  • Target

    968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe

  • Size

    637KB

  • Sample

    240530-brwqaaac73

  • MD5

    1e5cf68be8be84206025810b3e0b1454

  • SHA1

    69ccfa76796e58b9ebd30c1928d00f02caa60cac

  • SHA256

    968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605

  • SHA512

    2ddfcbb652358cafedb962c704316aa651bf0809f0e38dec4d8bf764733f5b9ca8756ea64ed03c4294285d43e49f7cb5a70fb98f29d9e382438beac71d498759

  • SSDEEP

    12288:zrKj8uwR0PbmCkq2AhEPQb39hcW1WLNKUqdLiCvgMEmCwDe3G:z2AuwR0PbmCjhEP0xiBM+bMi2

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe

    • Size

      637KB

    • MD5

      1e5cf68be8be84206025810b3e0b1454

    • SHA1

      69ccfa76796e58b9ebd30c1928d00f02caa60cac

    • SHA256

      968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605

    • SHA512

      2ddfcbb652358cafedb962c704316aa651bf0809f0e38dec4d8bf764733f5b9ca8756ea64ed03c4294285d43e49f7cb5a70fb98f29d9e382438beac71d498759

    • SSDEEP

      12288:zrKj8uwR0PbmCkq2AhEPQb39hcW1WLNKUqdLiCvgMEmCwDe3G:z2AuwR0PbmCjhEP0xiBM+bMi2

    • 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 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

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks