General

  • Target

    skuld.exe

  • Size

    9.5MB

  • Sample

    240513-vc3d3afe62

  • MD5

    4f249325a0f606af8f695f07fac203da

  • SHA1

    33068d5218d9769d8f9b2516c5b74eef7ff2341d

  • SHA256

    238630f53d4f94f5fd8644bcfcb863966c25f0795c156e72676742eb0bc6148d

  • SHA512

    f70629e80af5cfd5e73203588131a849ccf9b802f8ee06453b646dd62f18818d4497e6393dab04554db2536cbd04e17c396e237e241f0b55ce0cad36a513ea92

  • SSDEEP

    98304:yJ0A3hYgNumHEMVr90ch7tp0Eb6SF84v3X:dehYgPkE90chxpNb/v3X

Malware Config

Targets

    • Target

      skuld.exe

    • Size

      9.5MB

    • MD5

      4f249325a0f606af8f695f07fac203da

    • SHA1

      33068d5218d9769d8f9b2516c5b74eef7ff2341d

    • SHA256

      238630f53d4f94f5fd8644bcfcb863966c25f0795c156e72676742eb0bc6148d

    • SHA512

      f70629e80af5cfd5e73203588131a849ccf9b802f8ee06453b646dd62f18818d4497e6393dab04554db2536cbd04e17c396e237e241f0b55ce0cad36a513ea92

    • SSDEEP

      98304:yJ0A3hYgNumHEMVr90ch7tp0Eb6SF84v3X:dehYgPkE90chxpNb/v3X

    • 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

    • 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 cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Maps connected drives based on registry

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

MITRE ATT&CK Enterprise v15

Tasks