hxxps://github[.]com/Dfmaaa/MEMZ-virus/blob/main/MEMZ[.]exe | Triage

Resubmissions

14/02/2024, 00:03

240214-acjlqsdd84 10

14/02/2024, 00:00

240214-aagpcscb5w 8

13/02/2024, 23:57

240213-3zsr5sdd36 8

Sharing

General

Target

https://github.com/Dfmaaa/MEMZ-virus/blob/main/MEMZ.exe
Sample

240214-acjlqsdd84

Score

10^/10

bootkit evasion persistence ransomware trojan

Malware Config

Targets

- Target
  
  https://github.com/Dfmaaa/MEMZ-virus/blob/main/MEMZ.exe
Score

10^/10

bootkit evasion persistence ransomware trojan
- Modifies WinLogon for persistence
  persistence
- UAC bypass
  evasion trojan
- Disables Task Manager via registry modification
  evasion
- Downloads MZ/PE file
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- 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.
  bootkit persistence
- Sets desktop wallpaper using registry
  ransomware
behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Winlogon Helper DLL

Pre-OS Boot

Bootkit

Privilege Escalation

Abuse Elevation Control Mechanism

Bypass User Account Control

Boot or Logon Autostart Execution

Winlogon Helper DLL

Defense Evasion

Abuse Elevation Control Mechanism

Bypass User Account Control

Impair Defenses

Disable or Modify Tools

Modify Registry

Pre-OS Boot

Bootkit

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Web Service

Exfiltration

Impact

Defacement

Tasks

static1

urlscan1

behavioral1

bootkitevasionpersistenceransomwaretrojan