General

  • Target

    2e41ea890acc93ea21b2e353f795cee51609631260e3311c96c4a6f44fcf5332.exe

  • Size

    721KB

  • Sample

    240323-clwnrseg7z

  • MD5

    3aceb84dd8d5f903b26fbb9e3530513d

  • SHA1

    107bfbe77e9db7789673e0e321f2561116111c62

  • SHA256

    2e41ea890acc93ea21b2e353f795cee51609631260e3311c96c4a6f44fcf5332

  • SHA512

    69ccea9b468c55ca3ce0a2b9fa67ecc9dbaec5e938363137c54235909522d5a8ef301f332aa60f7c7ba9b35cd99ab5a8bf5176ac7cbebf69b22941374c089fe8

  • SSDEEP

    12288:co5vFoWdV8r4MXm33OdFfCxpY5NCQvjlnUhhaTgiMz:cojdVVMWHwfCg7CQblnUhh8Mz

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      2e41ea890acc93ea21b2e353f795cee51609631260e3311c96c4a6f44fcf5332.exe

    • Size

      721KB

    • MD5

      3aceb84dd8d5f903b26fbb9e3530513d

    • SHA1

      107bfbe77e9db7789673e0e321f2561116111c62

    • SHA256

      2e41ea890acc93ea21b2e353f795cee51609631260e3311c96c4a6f44fcf5332

    • SHA512

      69ccea9b468c55ca3ce0a2b9fa67ecc9dbaec5e938363137c54235909522d5a8ef301f332aa60f7c7ba9b35cd99ab5a8bf5176ac7cbebf69b22941374c089fe8

    • SSDEEP

      12288:co5vFoWdV8r4MXm33OdFfCxpY5NCQvjlnUhhaTgiMz:cojdVVMWHwfCg7CQblnUhh8Mz

    • AgentTesla

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

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • 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 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

    • Loads dropped DLL

    • 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.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target

      $PLUGINSDIR/System.dll

    • Size

      11KB

    • MD5

      3f176d1ee13b0d7d6bd92e1c7a0b9bae

    • SHA1

      fe582246792774c2c9dd15639ffa0aca90d6fd0b

    • SHA256

      fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

    • SHA512

      0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

    • SSDEEP

      192:OPtkumJX7zB22kGwfy0mtVgkCPOsX1un:/702k5qpdsXQn

    Score
    3/10

MITRE ATT&CK Enterprise v15

Tasks