General

  • Target

    89a723b9d1e021e444a9468f4cfa944183f10c7d40fa87a9f77a4270f1301c59

  • Size

    4.1MB

  • Sample

    240509-3ysqrahg28

  • MD5

    5eaf807b6bc23c645654ed83a20a91b9

  • SHA1

    d5f0d8e488feb8a20d389a79baa7cff7cbc44e6d

  • SHA256

    89a723b9d1e021e444a9468f4cfa944183f10c7d40fa87a9f77a4270f1301c59

  • SHA512

    8be6918792709927e9ce33917185442f8b551cfb04ebabbcd5c907a46db58a24b428b7b718588f59af79a16192302be626b84ccd67af2d8d7f668b6fafd13453

  • SSDEEP

    98304:c5XFTlMyMZVAWF8SeH6tiBW2iadSy01pM0vGwbSOXmAlvt:clM/Z/sBW2vMzM6G+VHvt

Malware Config

Targets

    • Target

      89a723b9d1e021e444a9468f4cfa944183f10c7d40fa87a9f77a4270f1301c59

    • Size

      4.1MB

    • MD5

      5eaf807b6bc23c645654ed83a20a91b9

    • SHA1

      d5f0d8e488feb8a20d389a79baa7cff7cbc44e6d

    • SHA256

      89a723b9d1e021e444a9468f4cfa944183f10c7d40fa87a9f77a4270f1301c59

    • SHA512

      8be6918792709927e9ce33917185442f8b551cfb04ebabbcd5c907a46db58a24b428b7b718588f59af79a16192302be626b84ccd67af2d8d7f668b6fafd13453

    • SSDEEP

      98304:c5XFTlMyMZVAWF8SeH6tiBW2iadSy01pM0vGwbSOXmAlvt:clM/Z/sBW2vMzM6G+VHvt

    • 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