General

  • Target

    f0faf23cab3010aa7bb768fd2bc8c10b134ac1186b4cdd117b2ae0c4938f2fc6

  • Size

    646KB

  • Sample

    250117-brerrsykbj

  • MD5

    05c0d616e1ef814e260223303889c1df

  • SHA1

    081b1c0ae796471b921cb95ef604ff9838934c96

  • SHA256

    f0faf23cab3010aa7bb768fd2bc8c10b134ac1186b4cdd117b2ae0c4938f2fc6

  • SHA512

    3c8d0a132967c217c456dffd1d3a96dad7423879fd9287f4c15bdd39818e6c6dc45f44de21d4a00a8152a5385b420ea2f4b2a6f633afeec5b1a7b94360a52c59

  • SSDEEP

    12288:T7EucaNZYwEvwxJ5zruZO+95T71x4fwH2Rldb5YXbRaCFgrdZdR+GYH:T7Eucav64X5zQO+/1+fwHm+X3FgrJ8GU

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      QUOTE-4K798387.exe

    • Size

      803KB

    • MD5

      dadd4986fcafad955331dec3ae804715

    • SHA1

      7f95220f014ee031086462bac70e9ac5630e4f32

    • SHA256

      62583c6e3b10aa18fb8e642559fe1815309c0bd2ad67203d7b653bc71c913f31

    • SHA512

      da3d62c5167433d107e172180756ead0018ebef18dd30b0c7efbfbcb0c7d9b03fe10a75b28c3cd4c19eaf12960e657eb4d57a4fdff930cea674e743e8dc85e92

    • SSDEEP

      24576:lwhV5xOerIdH6q8/PffH8kSh0t5XhO1BCxKWzJF:lwzO3AX/f5Sh0tnJxKW

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks