General

  • Target

    CA69CC6680515603FF76C0D9F7FF98AF.exe

  • Size

    4.1MB

  • Sample

    230328-wwdqgsea9y

  • MD5

    ca69cc6680515603ff76c0d9f7ff98af

  • SHA1

    a838890818f67c9a0eba8f3d15c04fcd6f7a3bb8

  • SHA256

    44af15077c839bdc975ebd81f2bd2188c0ced84ea9b2facbda807eb3d05747d0

  • SHA512

    dc6b9c7f56d7a0085e62e7779337b70ab9b8700d0ea580bf8455361dc17c69654bb0ab68ff7cd89f260140a3c1aa43d2161d3d4a0856ab6d8d5c90102cf7e61b

  • SSDEEP

    98304:zFkiC6Dxkh193M37JyWckqXzjOES7r9ojcGWjOKol:RkiCcxkJM34WcfNSNSUsl

Malware Config

Targets

    • Target

      CA69CC6680515603FF76C0D9F7FF98AF.exe

    • Size

      4.1MB

    • MD5

      ca69cc6680515603ff76c0d9f7ff98af

    • SHA1

      a838890818f67c9a0eba8f3d15c04fcd6f7a3bb8

    • SHA256

      44af15077c839bdc975ebd81f2bd2188c0ced84ea9b2facbda807eb3d05747d0

    • SHA512

      dc6b9c7f56d7a0085e62e7779337b70ab9b8700d0ea580bf8455361dc17c69654bb0ab68ff7cd89f260140a3c1aa43d2161d3d4a0856ab6d8d5c90102cf7e61b

    • SSDEEP

      98304:zFkiC6Dxkh193M37JyWckqXzjOES7r9ojcGWjOKol:RkiCcxkJM34WcfNSNSUsl

    • 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

    • 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.

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Disabling Security Tools

2
T1089

Modify Registry

4
T1112

Impair Defenses

1
T1562

Install Root Certificate

1
T1130

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Tasks