General

  • Target

    aa29344f893d573b56bb202c77d1d5501e86874d1988c0294bc201e47a30323d

  • Size

    4.1MB

  • Sample

    240520-br3tlade6z

  • MD5

    a14b0b2e7f23dc85719c9263ce9ca7d6

  • SHA1

    9a72c6cf97417f1ea51bdd7b9a0651d6daeb9a10

  • SHA256

    aa29344f893d573b56bb202c77d1d5501e86874d1988c0294bc201e47a30323d

  • SHA512

    9d1e8618bc8dce2a7bd5879a8d8f53085c51fc66a296af7d0892663e2349e6d97c9817019b75f505423037906189940067839c602f822a75d916d0d4325bd672

  • SSDEEP

    98304:r3/aXnuKq8lIi6YuYM5DOP1Yy/qFVYXqnggvBm2Aw6XSjras4uEiZDLpDRiiTx:r3/aer8lIiPc9ySnggpxAJiIuBVpFiil

Malware Config

Targets

    • Target

      aa29344f893d573b56bb202c77d1d5501e86874d1988c0294bc201e47a30323d

    • Size

      4.1MB

    • MD5

      a14b0b2e7f23dc85719c9263ce9ca7d6

    • SHA1

      9a72c6cf97417f1ea51bdd7b9a0651d6daeb9a10

    • SHA256

      aa29344f893d573b56bb202c77d1d5501e86874d1988c0294bc201e47a30323d

    • SHA512

      9d1e8618bc8dce2a7bd5879a8d8f53085c51fc66a296af7d0892663e2349e6d97c9817019b75f505423037906189940067839c602f822a75d916d0d4325bd672

    • SSDEEP

      98304:r3/aXnuKq8lIi6YuYM5DOP1Yy/qFVYXqnggvBm2Aw6XSjras4uEiZDLpDRiiTx:r3/aer8lIiPc9ySnggpxAJiIuBVpFiil

    • 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