General

  • Target

    f0e38ba220616f3b94a5f71712d52817_JaffaCakes118

  • Size

    413KB

  • Sample

    240922-adr99ssakn

  • MD5

    f0e38ba220616f3b94a5f71712d52817

  • SHA1

    f59a1e433565255d52720f49ce0f4e52c29b78bf

  • SHA256

    e9dc15fdcf77dd8dde52392b63a79e43e39d85431434198f5103ced790f9034a

  • SHA512

    3d18bd099d2713382d7fa2b12ee4cc9f19e79392318d25e317708c5efa6c5c7bd943f20d3d11be1172b877f8f2b19e09ac5442dfafd1f4a3b1d71a77f3af3626

  • SSDEEP

    6144:6Axt05ERQ+3HwO0adBqsB9+U1eqjRISdJOyYge708qlv5/Mf76oAeEHm9E0:iESoZ4C9AWIzJgeCvlY5AeEKh

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.hegelman.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    B!c)MGg9

Targets

    • Target

      f0e38ba220616f3b94a5f71712d52817_JaffaCakes118

    • Size

      413KB

    • MD5

      f0e38ba220616f3b94a5f71712d52817

    • SHA1

      f59a1e433565255d52720f49ce0f4e52c29b78bf

    • SHA256

      e9dc15fdcf77dd8dde52392b63a79e43e39d85431434198f5103ced790f9034a

    • SHA512

      3d18bd099d2713382d7fa2b12ee4cc9f19e79392318d25e317708c5efa6c5c7bd943f20d3d11be1172b877f8f2b19e09ac5442dfafd1f4a3b1d71a77f3af3626

    • SSDEEP

      6144:6Axt05ERQ+3HwO0adBqsB9+U1eqjRISdJOyYge708qlv5/Mf76oAeEHm9E0:iESoZ4C9AWIzJgeCvlY5AeEKh

    • AgentTesla

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

    • AgentTesla payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

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

    • Drops file in Drivers directory

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

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

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • 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