Overview

overview

10

Static

static

1

URLScan

urlscan

1

https://github.com/t...

windows10-2004-x64

10

Sharing

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General

  • Target
    https://github.com/timkabebr/memz-
  • Sample260808-vt3fdsap4z
Score
10/10
killmbrbootkitdiscoveryexecutionpersistencetrojanwiper

Malware Config

Targets

    • Target
      https://github.com/timkabebr/memz-
    Score
    10/10
    bootkitdiscoveryexecutionkillmbrpersistencetrojanwiper

    • Detects KillMBR

    • Family: KillMBR

      KillMBR is a trojan that attempts to overwrite the Master Boot Record.

      wipertrojankillmbr

    • Downloads MZ/PE file

    • Uses Session Manager for persistence

      Creates Session Manager registry key to run executable early in system boot.

      persistence

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks for any installed AV software in registry

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

JavaScript

1
T1059.007

Windows Command Shell

1
T1059.003

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Browser Information Discovery

1
T1217

Query Registry

4
T1012

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks