General

  • Target

    3029eb76575a110e9bfeadcee488cb4db00d25da6d8529e48d49f2fee0770f80.exe

  • Size

    631KB

  • Sample

    240430-bkzhlafh55

  • MD5

    26aa84b983564ccd62143b164ffa7f62

  • SHA1

    df39b8d79ca797d9dc594f62d705682b4ec7d634

  • SHA256

    3029eb76575a110e9bfeadcee488cb4db00d25da6d8529e48d49f2fee0770f80

  • SHA512

    ebc73b0faeb5886ff5910fc69d93293de875098ffb66037508e70f1a8c922312952a5d8341aa856787e4ffa670fc01fb40b288c067dba4aaec5e7c886c74bcf6

  • SSDEEP

    12288:mZMAvNlMfHJ2zJWfs+Pk8xVv5x9+AeVmxgU5hT3ETB778Qm:jAw2zJWfs+s8HjnXgWhUTB0

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      3029eb76575a110e9bfeadcee488cb4db00d25da6d8529e48d49f2fee0770f80.exe

    • Size

      631KB

    • MD5

      26aa84b983564ccd62143b164ffa7f62

    • SHA1

      df39b8d79ca797d9dc594f62d705682b4ec7d634

    • SHA256

      3029eb76575a110e9bfeadcee488cb4db00d25da6d8529e48d49f2fee0770f80

    • SHA512

      ebc73b0faeb5886ff5910fc69d93293de875098ffb66037508e70f1a8c922312952a5d8341aa856787e4ffa670fc01fb40b288c067dba4aaec5e7c886c74bcf6

    • SSDEEP

      12288:mZMAvNlMfHJ2zJWfs+Pk8xVv5x9+AeVmxgU5hT3ETB778Qm:jAw2zJWfs+s8HjnXgWhUTB0

    • 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

    • 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.

    • Adds Run key to start application

    • 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