General

  • Target

    2cba44c968c84845c2857dda491a3fe4e1b1121fd84a788cd2ccb04e8aa4df98

  • Size

    4.1MB

  • Sample

    240515-y7lataac6v

  • MD5

    987ef27af17121a4d9f3f820a7348ce2

  • SHA1

    5add85ebc2d75c3b3bf0bd940a7bd6942a26fcb3

  • SHA256

    2cba44c968c84845c2857dda491a3fe4e1b1121fd84a788cd2ccb04e8aa4df98

  • SHA512

    73d7f0285eff7adfc3b740b5ddbda020be47ca5ce51a4912150b63c707f00c058ae2c838e5cef4039cb906968f7bfd16908215fe795cda67889131bf06346fd5

  • SSDEEP

    98304:VOEQv7p1EKwgW7O4vptwZo6T+WO0dzEY6Kk7ob384km+FfOf:Vr2p15ulARrO0d7kw84IGf

Malware Config

Targets

    • Target

      2cba44c968c84845c2857dda491a3fe4e1b1121fd84a788cd2ccb04e8aa4df98

    • Size

      4.1MB

    • MD5

      987ef27af17121a4d9f3f820a7348ce2

    • SHA1

      5add85ebc2d75c3b3bf0bd940a7bd6942a26fcb3

    • SHA256

      2cba44c968c84845c2857dda491a3fe4e1b1121fd84a788cd2ccb04e8aa4df98

    • SHA512

      73d7f0285eff7adfc3b740b5ddbda020be47ca5ce51a4912150b63c707f00c058ae2c838e5cef4039cb906968f7bfd16908215fe795cda67889131bf06346fd5

    • SSDEEP

      98304:VOEQv7p1EKwgW7O4vptwZo6T+WO0dzEY6Kk7ob384km+FfOf:Vr2p15ulARrO0d7kw84IGf

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Windows security bypass

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects executables Discord URL observed in first stage droppers

    • Detects executables containing URLs to raw contents of a Github gist

    • Detects executables containing artifacts associated with disabling Widnows Defender

    • Detects executables referencing many varying, potentially fake Windows User-Agents

    • Modifies boot configuration data using bcdedit

    • UPX dump on OEP (original entry point)

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

    • Windows security modification

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks