General

  • Target

    3fa5c8c8d1ca820c4b442d19a4d1ca2211db64940a634d374a6191e879d565a8

  • Size

    4.2MB

  • Sample

    240425-canh1sdd4t

  • MD5

    37799b636a75c12f196e8c9d0bba0e64

  • SHA1

    c8a4e93f6eee09b625d9171dda88ec2d7870f9dd

  • SHA256

    3fa5c8c8d1ca820c4b442d19a4d1ca2211db64940a634d374a6191e879d565a8

  • SHA512

    b85da2701275bd59d181741084e8faf98c31fa4d4d1deae7eccf68b8accdf962ed0e2b14a8b3878d94e7c05637cd968cc3461e87961796329461fd87d34af8db

  • SSDEEP

    98304:UU7JZ/7uURLcFeenA9dH0uQZbHI/vGTIvGlDlXY4zncLZ:UcbuURLCeprU/ZbHFTYanE

Malware Config

Targets

    • Target

      3fa5c8c8d1ca820c4b442d19a4d1ca2211db64940a634d374a6191e879d565a8

    • Size

      4.2MB

    • MD5

      37799b636a75c12f196e8c9d0bba0e64

    • SHA1

      c8a4e93f6eee09b625d9171dda88ec2d7870f9dd

    • SHA256

      3fa5c8c8d1ca820c4b442d19a4d1ca2211db64940a634d374a6191e879d565a8

    • SHA512

      b85da2701275bd59d181741084e8faf98c31fa4d4d1deae7eccf68b8accdf962ed0e2b14a8b3878d94e7c05637cd968cc3461e87961796329461fd87d34af8db

    • SSDEEP

      98304:UU7JZ/7uURLcFeenA9dH0uQZbHI/vGTIvGlDlXY4zncLZ:UcbuURLCeprU/ZbHFTYanE

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Impair Defenses

4
T1562

Disable or Modify Tools

2
T1562.001

Disable or Modify System Firewall

1
T1562.004

Modify Registry

4
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Tasks