General

  • Target

    e06817ec3e144f7aa91773c9f6df1cb66fea5c5aaa224875582bbbe0e95063df

  • Size

    709KB

  • Sample

    250128-blevkssjcy

  • MD5

    a9b9eec5ecbfd819e5d21eca58f269d9

  • SHA1

    163e1389e710852e7a30e30e7265773e82ecb6e6

  • SHA256

    e06817ec3e144f7aa91773c9f6df1cb66fea5c5aaa224875582bbbe0e95063df

  • SHA512

    834edf8a3cf8a718a526298b8ec563403c7c692a177e3fe82ec4ce0ecaa9d2cdf27b94899052cc21a13638ba77cad44fb7e3d10da1e1316e3e08bca48ffdf36a

  • SSDEEP

    12288:4nwDKbummwOiGFImZg/1Fz3hFf94BFJJDff7ZRo+:4nwDKb+w1mZaCJJLf3

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      e06817ec3e144f7aa91773c9f6df1cb66fea5c5aaa224875582bbbe0e95063df

    • Size

      709KB

    • MD5

      a9b9eec5ecbfd819e5d21eca58f269d9

    • SHA1

      163e1389e710852e7a30e30e7265773e82ecb6e6

    • SHA256

      e06817ec3e144f7aa91773c9f6df1cb66fea5c5aaa224875582bbbe0e95063df

    • SHA512

      834edf8a3cf8a718a526298b8ec563403c7c692a177e3fe82ec4ce0ecaa9d2cdf27b94899052cc21a13638ba77cad44fb7e3d10da1e1316e3e08bca48ffdf36a

    • SSDEEP

      12288:4nwDKbummwOiGFImZg/1Fz3hFf94BFJJDff7ZRo+:4nwDKb+w1mZaCJJLf3

    • AgentTesla

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

    • Agenttesla family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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