Overview

overview

9

Static

static

1

Melissa v1 .bat

windows10-ltsc_2021-x64

9

Sharing

Copy URL Twitter E-mail

General

  • Target
    Melissa v1 .bat
  • Size 3KB
  • Sample260930-nnq2vatela
  • SHA256 78b737f7cfb11ebd64f3bfad3f43ddd1c61b44e4d02a73305118edd0479c1570
  • MD5 SHA1 SHA512 TLSH
Score
9/10
defense_evasionexecutionimpactpersistenceprivilege_escalationransomware

Malware Config

Targets

    • Target
      Melissa v1 .bat
    • Size 3KB
    • SHA256 78b737f7cfb11ebd64f3bfad3f43ddd1c61b44e4d02a73305118edd0479c1570
    • MD5 SHA1 SHA512 TLSH
    Score
    9/10
    defense_evasionexecutionimpactpersistenceprivilege_escalationransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies Windows Firewall

      defense_evasion

    • Checks computer location settings

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

    • Executes a VBScript file via the Windows Script Host.

      execution
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

Visual Basic

1
T1059.005

Windows Command Shell

1
T1059.003

Windows Management Instrumentation

1
T1047

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Direct Volume Access

1
T1006

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks