General

  • Target

    f575c056887b83a921d8f618a9f7e0b4_JaffaCakes118

  • Size

    654KB

  • Sample

    240925-hwcxas1hlq

  • MD5

    f575c056887b83a921d8f618a9f7e0b4

  • SHA1

    e8a5444eec1b2eb4c9a634f378412ebe3b08d7c8

  • SHA256

    ddb4d7efe5f833597322678e85ccb43206f757624e55fa7dcadab6d398f8afea

  • SHA512

    54ad109e27c1ed9ecebd623bafd4df8c92bd92d98e52152d7ca9da2beadbf5303d6bedf72872982c90ff2b36aaa3b82c384b59c9cfd4b11f703d56377333a476

  • SSDEEP

    12288:TK2W/SrQ6mBx89jy+8O2zKDne2wKwXmB+ba:e2SSrLms5y+l2uDnJwY

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.shirdilog.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    SL094521

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.shirdilog.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    SL094521

Targets

    • Target

      f575c056887b83a921d8f618a9f7e0b4_JaffaCakes118

    • Size

      654KB

    • MD5

      f575c056887b83a921d8f618a9f7e0b4

    • SHA1

      e8a5444eec1b2eb4c9a634f378412ebe3b08d7c8

    • SHA256

      ddb4d7efe5f833597322678e85ccb43206f757624e55fa7dcadab6d398f8afea

    • SHA512

      54ad109e27c1ed9ecebd623bafd4df8c92bd92d98e52152d7ca9da2beadbf5303d6bedf72872982c90ff2b36aaa3b82c384b59c9cfd4b11f703d56377333a476

    • SSDEEP

      12288:TK2W/SrQ6mBx89jy+8O2zKDne2wKwXmB+ba:e2SSrLms5y+l2uDnJwY

    • AgentTesla

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

    • 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.

    • 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.

    • Windows security modification

    • 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