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General

  • Target

    1a87ce0a40d27b7f40a62532d1fad6d1d4dd970f53988b9e49b386874b77be2f

  • Size

    1.4MB

  • Sample

    250109-bq89zssjaw

  • MD5

    6b44e1ddf2b01804744b6804247c6786

  • SHA1

    3995d008866908ae3a1295280cc485e56fd4d55d

  • SHA256

    1a87ce0a40d27b7f40a62532d1fad6d1d4dd970f53988b9e49b386874b77be2f

  • SHA512

    606f10f60444b826fb1f4fa57bfe073267f6c87431f463bbe837cbbe99954ea25f198f27106f6451dc8c4d2426635eea529d0fe1e6e795f55af5ce8377b0eff0

  • SSDEEP

    24576:x0hKPbXZJ6qE3jZ1M2kDPeAJVsNFLXLav1RIAhjLoamMiX4lNmZg0YxegPbUIDPP:x0cUtaLd6FKjLoyEkmZ9Y14

Malware Config

Targets

    • Target

      1a87ce0a40d27b7f40a62532d1fad6d1d4dd970f53988b9e49b386874b77be2f

    • Size

      1.4MB

    • MD5

      6b44e1ddf2b01804744b6804247c6786

    • SHA1

      3995d008866908ae3a1295280cc485e56fd4d55d

    • SHA256

      1a87ce0a40d27b7f40a62532d1fad6d1d4dd970f53988b9e49b386874b77be2f

    • SHA512

      606f10f60444b826fb1f4fa57bfe073267f6c87431f463bbe837cbbe99954ea25f198f27106f6451dc8c4d2426635eea529d0fe1e6e795f55af5ce8377b0eff0

    • SSDEEP

      24576:x0hKPbXZJ6qE3jZ1M2kDPeAJVsNFLXLav1RIAhjLoamMiX4lNmZg0YxegPbUIDPP:x0cUtaLd6FKjLoyEkmZ9Y14

    • AgentTesla

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

    • Agenttesla family

    • Modifies Windows Defender Real-time Protection settings

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks