General

  • Target

    Swift.doc

  • Size

    651KB

  • Sample

    240925-nm94bssgnq

  • MD5

    2c9c398b48a5dd09677fcc4e1fd801e1

  • SHA1

    99a62ef8e1088516c1b9dc497d3f92a2eb455e85

  • SHA256

    63a8fc1247dd5615235428bfe7eeed1abea8a1199071649cf575f43012dfcfdd

  • SHA512

    b11b9705d46eab703c1f90d4f170630b6aa8f5b26756bc416e9a8f960de9193653f5eb17f0f3bb6720a09736ed12e6a1371a8c4b952d1c83727ce14a347700e2

  • SSDEEP

    6144:6wAYwAYwAYwAYwAnvAJ1pqGUoD4mZEvOWd5MxIpu6:bJa

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Swift.doc

    • Size

      651KB

    • MD5

      2c9c398b48a5dd09677fcc4e1fd801e1

    • SHA1

      99a62ef8e1088516c1b9dc497d3f92a2eb455e85

    • SHA256

      63a8fc1247dd5615235428bfe7eeed1abea8a1199071649cf575f43012dfcfdd

    • SHA512

      b11b9705d46eab703c1f90d4f170630b6aa8f5b26756bc416e9a8f960de9193653f5eb17f0f3bb6720a09736ed12e6a1371a8c4b952d1c83727ce14a347700e2

    • SSDEEP

      6144:6wAYwAYwAYwAYwAnvAJ1pqGUoD4mZEvOWd5MxIpu6:bJa

    • AgentTesla

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks