General

  • Target

    011b3f96a7f3e7e7c839f3bc86f4a30b6b40b76d9450b0a241cac43099c9ae7c

  • Size

    4.1MB

  • Sample

    230327-sb5fxsea25

  • MD5

    1c1c5b836f7d622670effdaa717762c4

  • SHA1

    a41265b35dfb48a5f341f92dc67203bebe644874

  • SHA256

    011b3f96a7f3e7e7c839f3bc86f4a30b6b40b76d9450b0a241cac43099c9ae7c

  • SHA512

    58b759a22abc2ae4b3a9eccda40f91c581a9811947f5ad04cdfa18b7088561dbeba98b53af3805686fb9734314f5cadceb81584204b2cebaca5805959229bf62

  • SSDEEP

    98304:WwBHi5FsLxkWyDJ6to4G4vUv6ywdiLJHCt4xilFJ8A1vh:7C4GDcGf1vJwIAqKPdh

Malware Config

Targets

    • Target

      011b3f96a7f3e7e7c839f3bc86f4a30b6b40b76d9450b0a241cac43099c9ae7c

    • Size

      4.1MB

    • MD5

      1c1c5b836f7d622670effdaa717762c4

    • SHA1

      a41265b35dfb48a5f341f92dc67203bebe644874

    • SHA256

      011b3f96a7f3e7e7c839f3bc86f4a30b6b40b76d9450b0a241cac43099c9ae7c

    • SHA512

      58b759a22abc2ae4b3a9eccda40f91c581a9811947f5ad04cdfa18b7088561dbeba98b53af3805686fb9734314f5cadceb81584204b2cebaca5805959229bf62

    • SSDEEP

      98304:WwBHi5FsLxkWyDJ6to4G4vUv6ywdiLJHCt4xilFJ8A1vh:7C4GDcGf1vJwIAqKPdh

    • Glupteba

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

    • Glupteba payload

    • Windows security bypass

    • Modifies Windows Firewall

    • Executes dropped EXE

    • 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.

    • 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

Disabling Security Tools

2
T1089

Modify Registry

3
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Command and Control

Web Service

1
T1102

Tasks