General

  • Target

    Revised Invoices.exe

  • Size

    641KB

  • Sample

    230920-mdp65ahf79

  • MD5

    d630d40985a9dec957e4bc6b0a6044fd

  • SHA1

    ec4033801c22381fe972d9169b7e4cb1fad5b11d

  • SHA256

    f95c7b22daed958ec9e957bc06ba3fa1b8c4973e57d8dcd3c89d3ad0c2dafaa4

  • SHA512

    e2d66afdcad8048e7eed93d4166ed47ca4b6f4933bcbd7a31075d85ea0052250cbe23a359693a169b858dbdb9a19fd413334ccbca2ae40736fffa74ddc7d5ba1

  • SSDEEP

    12288:zKRa7aLYFgtCUxqmf1pfYXExxbJfk0xrzgd/oeTEBr:c4aLYWkrWKUHb21A

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Revised Invoices.exe

    • Size

      641KB

    • MD5

      d630d40985a9dec957e4bc6b0a6044fd

    • SHA1

      ec4033801c22381fe972d9169b7e4cb1fad5b11d

    • SHA256

      f95c7b22daed958ec9e957bc06ba3fa1b8c4973e57d8dcd3c89d3ad0c2dafaa4

    • SHA512

      e2d66afdcad8048e7eed93d4166ed47ca4b6f4933bcbd7a31075d85ea0052250cbe23a359693a169b858dbdb9a19fd413334ccbca2ae40736fffa74ddc7d5ba1

    • SSDEEP

      12288:zKRa7aLYFgtCUxqmf1pfYXExxbJfk0xrzgd/oeTEBr:c4aLYWkrWKUHb21A

    • AgentTesla

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

    • 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 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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