General

  • Target

    5ac73b3789035081fe14ad5beba92b48a0cab2ce0c10970c011e77cdef1662c6

  • Size

    4.2MB

  • Sample

    230607-venzfsdb97

  • MD5

    b983ad27fb81f23f5585438be093e576

  • SHA1

    19c9f0de36ad9f96ae243ba31309625e41547cbf

  • SHA256

    5ac73b3789035081fe14ad5beba92b48a0cab2ce0c10970c011e77cdef1662c6

  • SHA512

    af17c05583cc66b03cadb6aa1c3d8513389447f444b19059cfa6461be93b8378a8ddc6da83b73ce7663b0bf7995b966a34772923b7e41a195d3fc4df49f0d8e5

  • SSDEEP

    98304:7Pc9FcYO05ihGHS9WSnwj8q/RLdadqz/Y0RFELZvszSR:rc3EciILSnqdBdamY0RyeWR

Malware Config

Targets

    • Target

      5ac73b3789035081fe14ad5beba92b48a0cab2ce0c10970c011e77cdef1662c6

    • Size

      4.2MB

    • MD5

      b983ad27fb81f23f5585438be093e576

    • SHA1

      19c9f0de36ad9f96ae243ba31309625e41547cbf

    • SHA256

      5ac73b3789035081fe14ad5beba92b48a0cab2ce0c10970c011e77cdef1662c6

    • SHA512

      af17c05583cc66b03cadb6aa1c3d8513389447f444b19059cfa6461be93b8378a8ddc6da83b73ce7663b0bf7995b966a34772923b7e41a195d3fc4df49f0d8e5

    • SSDEEP

      98304:7Pc9FcYO05ihGHS9WSnwj8q/RLdadqz/Y0RFELZvszSR:rc3EciILSnqdBdamY0RyeWR

    • Glupteba

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

    • Glupteba payload

    • Windows security bypass

    • Modifies Windows Firewall

    • Executes dropped EXE

    • 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 WinMonFS driver.

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

    • Drops file in System32 directory

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

Disabling Security Tools

2
T1089

Modify Registry

3
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Tasks