Overview

overview

10

Static

static

10

nailnerd.c...ss.exe

windows10-2004-x64

10

nailnerd.c...ss.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    nailnerd.com_chromess.exe
  • Size 48KB
  • Sample260504-jletkses2x
  • SHA256 ea830c4f07a43e3a5b22a1d0b08ba6feea459239aeddbf1df937268126fc68c8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryexecutionimpactpersistenceransomware

Malware Config

Targets

    • Target
      nailnerd.com_chromess.exe
    • Size 48KB
    • SHA256 ea830c4f07a43e3a5b22a1d0b08ba6feea459239aeddbf1df937268126fc68c8
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutionimpactpersistenceransomware

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Modifies Windows Firewall

      defense_evasion

    • Checks computer location settings

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

    • Disables service(s)

      defense_evasionexecution

    • Stops running service(s)

      defense_evasionexecution

    • Enumerates processes with tasklist

      discovery
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

2
T1569

Service Execution

2
T1569.002

Windows Management Instrumentation

1
T1047

Persistence

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Direct Volume Access

1
T1006

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Credential Access

Discovery

Process Discovery

1
T1057

Query Registry

2
T1012

System Information Discovery

5
T1082

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Service Stop

2
T1489

Tasks