General

  • Target

    Lua31.exe

  • Size

    11.5MB

  • Sample

    240619-wylh4szhqn

  • MD5

    bdd41bce8b7266b47c1502d6cc9d01c4

  • SHA1

    ba76ed9c925a920a84f8aaf0b55a2ec5d935ea0e

  • SHA256

    922bfd690d4c7b62848bf0f6f8dd45b7c19ba5df22121df495071b082ce3b4de

  • SHA512

    436c44a1cb02f7bb63909807582ca89ee29ee42d0a21d75732fbc8c6a243d51e98f0ce4a36362d9f11466925ef49b2c71f8b77aa896b09d7b553d46706fbd4f5

  • SSDEEP

    196608:upkREzXj6ZY7lHDx9zdhY7FHfH0AERMaCu+Ljv+bhqNVoB8Ck5c7GpNlpq41J2sZ:eEg6qxDx9dIfHKCL+9qz88Ck+7q3p91H

Malware Config

Targets

    • Target

      Lua31.exe

    • Size

      11.5MB

    • MD5

      bdd41bce8b7266b47c1502d6cc9d01c4

    • SHA1

      ba76ed9c925a920a84f8aaf0b55a2ec5d935ea0e

    • SHA256

      922bfd690d4c7b62848bf0f6f8dd45b7c19ba5df22121df495071b082ce3b4de

    • SHA512

      436c44a1cb02f7bb63909807582ca89ee29ee42d0a21d75732fbc8c6a243d51e98f0ce4a36362d9f11466925ef49b2c71f8b77aa896b09d7b553d46706fbd4f5

    • SSDEEP

      196608:upkREzXj6ZY7lHDx9zdhY7FHfH0AERMaCu+Ljv+bhqNVoB8Ck5c7GpNlpq41J2sZ:eEg6qxDx9dIfHKCL+9qz88Ck+7q3p91H

    • 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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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.

    • Maps connected drives based on registry

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

    • Hide Artifacts: Hidden Files and Directories

MITRE ATT&CK Enterprise v15

Tasks