General

  • Target

    10fa69c12a7a433da024600a736e659323276015e79824e45cd6eb9cacfc442a.exe

  • Size

    698KB

  • Sample

    240420-be4v5acc33

  • MD5

    adf620aba1bbc1fcd60ac711b56d2d46

  • SHA1

    edcda5c4d22266c12511c657f7e13edf9ee21975

  • SHA256

    10fa69c12a7a433da024600a736e659323276015e79824e45cd6eb9cacfc442a

  • SHA512

    b8d85be28ebe54f616a7e306e1c6758cd04f0dbf30d94b2f4e208dc587d7f86c48027dbeda632f9cfb633166651c3453ae10f662da39ef537c529c64f69b8acb

  • SSDEEP

    12288:2BxmN0shqeQGBYyLg8x7AcAYpg1m/0LYGbPBsfrw0gIdnoxRosCeEOl+GvmotQT:Ux20od/g8GygcBse80gQoxRomEiDMT

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.victorytrans.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Chienthang30f99

Targets

    • Target

      10fa69c12a7a433da024600a736e659323276015e79824e45cd6eb9cacfc442a.exe

    • Size

      698KB

    • MD5

      adf620aba1bbc1fcd60ac711b56d2d46

    • SHA1

      edcda5c4d22266c12511c657f7e13edf9ee21975

    • SHA256

      10fa69c12a7a433da024600a736e659323276015e79824e45cd6eb9cacfc442a

    • SHA512

      b8d85be28ebe54f616a7e306e1c6758cd04f0dbf30d94b2f4e208dc587d7f86c48027dbeda632f9cfb633166651c3453ae10f662da39ef537c529c64f69b8acb

    • SSDEEP

      12288:2BxmN0shqeQGBYyLg8x7AcAYpg1m/0LYGbPBsfrw0gIdnoxRosCeEOl+GvmotQT:Ux20od/g8GygcBse80gQoxRomEiDMT

    • 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 SmartAssembly

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • 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