General

  • Target

    test.ps1

  • Size

    265B

  • Sample

    240521-gsy5pahg8s

  • MD5

    171cb361e1391bf4d9d1d4ef4d8757ab

  • SHA1

    7a03a9f5743a790485a11ae129912ead157c8b53

  • SHA256

    d2a3e3706e13d63d9de2a84eb8e7370b487025e218b157d93c86725d657a47d1

  • SHA512

    dade36eaee71fcbd2d46434470fe07c699803e0b3f057dd2426d1d20b1b7bfed5751aae1a4e8fda87ae6f99150eae8d95845cd768de0573911b807131c2d5c2e

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://github.com/Daulaires/Daulaires/releases/download/Lester/Demo.zip

Targets

    • Target

      test.ps1

    • Size

      265B

    • MD5

      171cb361e1391bf4d9d1d4ef4d8757ab

    • SHA1

      7a03a9f5743a790485a11ae129912ead157c8b53

    • SHA256

      d2a3e3706e13d63d9de2a84eb8e7370b487025e218b157d93c86725d657a47d1

    • SHA512

      dade36eaee71fcbd2d46434470fe07c699803e0b3f057dd2426d1d20b1b7bfed5751aae1a4e8fda87ae6f99150eae8d95845cd768de0573911b807131c2d5c2e

    • Modifies Windows Defender Real-time Protection settings

    • UAC bypass

    • Blocklisted process makes network request

    • Blocks application from running via registry modification

      Adds application to list of disallowed applications.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Windows security modification

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks