General

  • Target

    bb3bc7994d092c3f510327cf6e11506fe17c0d6fae9ae220de12f5928a2c185e.exe

  • Size

    695KB

  • Sample

    240519-cbkthscd7w

  • MD5

    437e9708692c44b79a29cffb4f1bf035

  • SHA1

    eccca5de58ce88f41019cd75ab23a31133761a32

  • SHA256

    bb3bc7994d092c3f510327cf6e11506fe17c0d6fae9ae220de12f5928a2c185e

  • SHA512

    f31162f3fac03d2cd937e4f04918e935ccdbc9663bca1dca34392cccc5b6fff3ca9f619daaae0757625f24310ce07ee3125a74a47c0dc6ae547ecf7ba5a91e5c

  • SSDEEP

    12288:NdrLbDZaNRpGjoJMeYHXcYgFiXFt11o2PPMomBCLXkD9PdU7uWhqAawJsE6x8TAE:PLDZMRpGjoJMWYQiXFt19sBBAopd7WhP

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://eu-west-1.sftpcloud.io
  • Port:
    21
  • Username:
    dc2d3038d5c743319b4d84cc320c4fad
  • Password:
    xmFBI1ctaq8b1qv5SWZ3AOzpG1Yb6y2K

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    eu-west-1.sftpcloud.io
  • Port:
    21
  • Username:
    dc2d3038d5c743319b4d84cc320c4fad
  • Password:
    xmFBI1ctaq8b1qv5SWZ3AOzpG1Yb6y2K

Targets

    • Target

      bb3bc7994d092c3f510327cf6e11506fe17c0d6fae9ae220de12f5928a2c185e.exe

    • Size

      695KB

    • MD5

      437e9708692c44b79a29cffb4f1bf035

    • SHA1

      eccca5de58ce88f41019cd75ab23a31133761a32

    • SHA256

      bb3bc7994d092c3f510327cf6e11506fe17c0d6fae9ae220de12f5928a2c185e

    • SHA512

      f31162f3fac03d2cd937e4f04918e935ccdbc9663bca1dca34392cccc5b6fff3ca9f619daaae0757625f24310ce07ee3125a74a47c0dc6ae547ecf7ba5a91e5c

    • SSDEEP

      12288:NdrLbDZaNRpGjoJMeYHXcYgFiXFt11o2PPMomBCLXkD9PdU7uWhqAawJsE6x8TAE:PLDZMRpGjoJMWYQiXFt19sBBAopd7WhP

    • 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 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 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