General

  • Target

    8f1334476b7feedf16b21dcfc81f84c694797c74b1e742b0dfe9f20af8775783

  • Size

    4.2MB

  • Sample

    240418-2t99kahc28

  • MD5

    bbd6b59ef0c8788ead3d69b7e7ca42e1

  • SHA1

    4bafc59cdd63c5c56f9d04c0ddf711a4ec9e231f

  • SHA256

    8f1334476b7feedf16b21dcfc81f84c694797c74b1e742b0dfe9f20af8775783

  • SHA512

    afe76584d1e628623614e9df2151b151e0818abc16faa0b5061b6df5906c190930e6c6345941311f3a57fad6b31817a08b4819927cfe44d55db37cf45d2ac983

  • SSDEEP

    98304:Ek7JTjhLShsx1qBl7Nxm+VT6MDy2752vclBq3s0XLA:EkdTjdSh0qB3E+byO0cOdXLA

Malware Config

Targets

    • Target

      8f1334476b7feedf16b21dcfc81f84c694797c74b1e742b0dfe9f20af8775783

    • Size

      4.2MB

    • MD5

      bbd6b59ef0c8788ead3d69b7e7ca42e1

    • SHA1

      4bafc59cdd63c5c56f9d04c0ddf711a4ec9e231f

    • SHA256

      8f1334476b7feedf16b21dcfc81f84c694797c74b1e742b0dfe9f20af8775783

    • SHA512

      afe76584d1e628623614e9df2151b151e0818abc16faa0b5061b6df5906c190930e6c6345941311f3a57fad6b31817a08b4819927cfe44d55db37cf45d2ac983

    • SSDEEP

      98304:Ek7JTjhLShsx1qBl7Nxm+VT6MDy2752vclBq3s0XLA:EkdTjdSh0qB3E+byO0cOdXLA

    • 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