General

  • Target

    a388448b2c597b32555757f009fab7e816349c3fb09899a873ea155596236bf7N.exe

  • Size

    727KB

  • Sample

    250120-k1d19s1qfy

  • MD5

    3ca5889359b328713a55e074e3456680

  • SHA1

    1ed6e6472b6b06a332fce43622c3e42f8d98ca4b

  • SHA256

    a388448b2c597b32555757f009fab7e816349c3fb09899a873ea155596236bf7

  • SHA512

    83f08d3be3b3e8200f555d6affd5ffb0aa7c8efafa41a81fac72dd86f659abd83f4fd7843b436d9361d82b2e1fc95e5cf951239ada13ff6be6d1c4361be2966d

  • SSDEEP

    6144:VWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N13724Ne:Vz7IFjvelQypyfy7z6u7+4D3724Ne

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Boy12345#

Targets

    • Target

      a388448b2c597b32555757f009fab7e816349c3fb09899a873ea155596236bf7N.exe

    • Size

      727KB

    • MD5

      3ca5889359b328713a55e074e3456680

    • SHA1

      1ed6e6472b6b06a332fce43622c3e42f8d98ca4b

    • SHA256

      a388448b2c597b32555757f009fab7e816349c3fb09899a873ea155596236bf7

    • SHA512

      83f08d3be3b3e8200f555d6affd5ffb0aa7c8efafa41a81fac72dd86f659abd83f4fd7843b436d9361d82b2e1fc95e5cf951239ada13ff6be6d1c4361be2966d

    • SSDEEP

      6144:VWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N13724Ne:Vz7IFjvelQypyfy7z6u7+4D3724Ne

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks