Resubmissions

01-04-2023 11:57

230401-n4zc6ahh36 1

01-04-2023 10:50

230401-mxf3kahe42 8

General

  • Target

    http://google.com

  • Sample

    230401-mxf3kahe42

Malware Config

Targets

    • Target

      http://google.com

    • Blocklisted process makes network request

    • Creates new service(s)

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Modifies service settings

      Alters the configuration of existing services.

    • Stops running service(s)

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

3
T1031

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Privilege Escalation

New Service

1
T1050

Defense Evasion

Impair Defenses

1
T1562

Modify Registry

4
T1112

Install Root Certificate

1
T1130

Discovery

Query Registry

5
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

2
T1018

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks