Overview

overview

10

Static

static

3

VoilInstaller.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    VoilInstaller.exe
  • Size 5.9MB
  • Sample261024-1md24set5m
  • SHA256 4367f56be976a7e4fa05a1803c4164ed7b669c23be8b4402de75897c4b9a47fe
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoveryexecutionpersistence

Malware Config

Targets

    • Target
      VoilInstaller.exe
    • Size 5.9MB
    • SHA256 4367f56be976a7e4fa05a1803c4164ed7b669c23be8b4402de75897c4b9a47fe
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryexecutionpersistence

    • Modifies WinLogon for persistence

      persistence

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

      discovery

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Network Service Discovery

1
T1046

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

System Information Discovery

4
T1082

System Network Configuration Discovery

1
T1016

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks