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General

  • Target

    09751399.exe

  • Size

    4.2MB

  • Sample

    230527-k1wajsbg5z

  • MD5

    289257051a7e30f837a00b4186b47501

  • SHA1

    322971cb7da2f62756e505ea8ba036462514c1bf

  • SHA256

    433ec815318e439551d66ddf3c605ba7da5e966b671107b425f73262d39a9c83

  • SHA512

    028854277ad817627f3070f0648bd546b2cc0a5c3ed220b1596725a41c934a9c62eb8f23c6e71619ea0c6c2d625b23c8a2ce03ca4eba016539a2134f4057bc26

  • SSDEEP

    98304:aHVVp2uqi61tX39zbn2cQKXNes4aMrVfmxWuRZxuBKBOBL:aFYzTXNH2c3eKokxlRfC

Malware Config

Targets

    • Target

      09751399.exe

    • Size

      4.2MB

    • MD5

      289257051a7e30f837a00b4186b47501

    • SHA1

      322971cb7da2f62756e505ea8ba036462514c1bf

    • SHA256

      433ec815318e439551d66ddf3c605ba7da5e966b671107b425f73262d39a9c83

    • SHA512

      028854277ad817627f3070f0648bd546b2cc0a5c3ed220b1596725a41c934a9c62eb8f23c6e71619ea0c6c2d625b23c8a2ce03ca4eba016539a2134f4057bc26

    • SSDEEP

      98304:aHVVp2uqi61tX39zbn2cQKXNes4aMrVfmxWuRZxuBKBOBL:aFYzTXNH2c3eKokxlRfC

    • Glupteba

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

    • Glupteba payload

    • Windows security bypass

    • Modifies boot configuration data using bcdedit

    • 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

    • 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 v6

Tasks