Overview

overview

10

Static

static

10

386fbb57ba...dc.exe

windows10-2004-x64

10

Resubmissions

07/08/2026, 13:53

260807-q69b9awhpc10

31/07/2026, 15:57

260731-teb48ada2710

15/07/2026, 04:07

260715-ep1s1ad13s10

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General

  • Target
    386fbb57ba83864ee57a9e8a271c6dc215dc20bb1521ee85ad414f0dc67babdc.zip
  • Size 736KB
  • Sample260731-teb48ada27
  • SHA256 1157379eccede7b9c40f76506693e8c0ccdbf296e71906dffb6c13496d3a0939
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
tokyocoredefense_evasiondiscoveryevasionexecutionpersistenceransomware

Malware Config

Targets

    • Target
      386fbb57ba83864ee57a9e8a271c6dc215dc20bb1521ee85ad414f0dc67babdc.exe
    • Size 3.3MB
    • SHA256 386fbb57ba83864ee57a9e8a271c6dc215dc20bb1521ee85ad414f0dc67babdc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryevasionexecutiontokyocorepersistenceransomware

    • Detects TokyoCore

    • Family: TokyoCore

      TokyoCore is a Windows ransomware written in C++.

      ransomwaretokyocore

    • Modifies WinLogon for persistence

      persistence

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • Creates new service(s)

      persistenceexecution

    • Executes dropped EXE

    • Stops running service(s)

      defense_evasionexecution

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Modifies WinLogon

      persistence

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

2
T1569

Service Execution

2
T1569.002

Persistence

Boot or Logon Autostart Execution

2
T1547

Winlogon Helper DLL

2
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Winlogon Helper DLL

2
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Impair Defenses

1
T1562

Modify Registry

2
T1112

Credential Access

Discovery

System Network Configuration Discovery

1
T1016

Wi-Fi Discovery

1
T1016.002

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Inhibit System Recovery

1
T1490

Service Stop

1
T1489

Tasks