General

  • Target

    a514523f7ad5de15cd7d434b0e8239517a51da9af0d39df8f28cf761ce18b5f1

  • Size

    4.1MB

  • Sample

    230329-3jc2rabh6x

  • MD5

    fcf86b9a799ea48140411edf920b9824

  • SHA1

    81192356d73cdcca8624d1d8ba37309fafcc5b0e

  • SHA256

    a514523f7ad5de15cd7d434b0e8239517a51da9af0d39df8f28cf761ce18b5f1

  • SHA512

    273edf98cd6b46628cdc2caa1a0175ab50a12d80521e494027fd325d7e112cf8110b70984827caa99dc99d1d5adddf0cbba2fd3e10f17d14f637d63dec9107ab

  • SSDEEP

    98304:RBxzdpH15bUFqXTsM1L0NlUAzzctxmpG5AzXLUQW/d3UXoBfYPDTK/0l/r0:5V5b3Qe0MAzzqmpGU7UQMd3UX6YPDq06

Malware Config

Targets

    • Target

      a514523f7ad5de15cd7d434b0e8239517a51da9af0d39df8f28cf761ce18b5f1

    • Size

      4.1MB

    • MD5

      fcf86b9a799ea48140411edf920b9824

    • SHA1

      81192356d73cdcca8624d1d8ba37309fafcc5b0e

    • SHA256

      a514523f7ad5de15cd7d434b0e8239517a51da9af0d39df8f28cf761ce18b5f1

    • SHA512

      273edf98cd6b46628cdc2caa1a0175ab50a12d80521e494027fd325d7e112cf8110b70984827caa99dc99d1d5adddf0cbba2fd3e10f17d14f637d63dec9107ab

    • SSDEEP

      98304:RBxzdpH15bUFqXTsM1L0NlUAzzctxmpG5AzXLUQW/d3UXoBfYPDTK/0l/r0:5V5b3Qe0MAzzqmpGU7UQMd3UX6YPDq06

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Modifies Windows Firewall

    • Executes dropped EXE

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

MITRE ATT&CK Matrix ATT&CK v6

Execution

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

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Command and Control

Web Service

1
T1102

Tasks