General

  • Target

    a5318d5d49120e3b41da2d53caee26a87428265e5746d0b6c148f427b387d42f.exe

  • Size

    2.7MB

  • Sample

    240612-cdyhdsycma

  • MD5

    7269810654d33ce8a56156ac27c52301

  • SHA1

    146c998fb828cc454952b38375f90557f1a6ea77

  • SHA256

    a5318d5d49120e3b41da2d53caee26a87428265e5746d0b6c148f427b387d42f

  • SHA512

    b249303fd6b8215de40c0cd7b4cbf0b5de735fad20ebc85cba7e0a807d561799d0beb3d84882497cdc207eb79d3c7451c66bc3f91d8a149ba4e7a5e8d448fdb7

  • SSDEEP

    49152:GJFEuQIt6uPRMH6dUopR74XIwxWveUlCja6EOXq/j478Y8an6Hx47WEf0+VHX:QdQII5H6SoX4YhvlCtEeq/0xAeV

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      a5318d5d49120e3b41da2d53caee26a87428265e5746d0b6c148f427b387d42f.exe

    • Size

      2.7MB

    • MD5

      7269810654d33ce8a56156ac27c52301

    • SHA1

      146c998fb828cc454952b38375f90557f1a6ea77

    • SHA256

      a5318d5d49120e3b41da2d53caee26a87428265e5746d0b6c148f427b387d42f

    • SHA512

      b249303fd6b8215de40c0cd7b4cbf0b5de735fad20ebc85cba7e0a807d561799d0beb3d84882497cdc207eb79d3c7451c66bc3f91d8a149ba4e7a5e8d448fdb7

    • SSDEEP

      49152:GJFEuQIt6uPRMH6dUopR74XIwxWveUlCja6EOXq/j478Y8an6Hx47WEf0+VHX:QdQII5H6SoX4YhvlCtEeq/0xAeV

    • 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

    • 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