Overview

overview

10

Static

static

10

2026-08-25...da.exe

windows10-2004-x64

10

2026-08-25...da.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-08-25_ea3ff0ab5c5548c70ae759bb4ed99de5_coinminer_rhysida
  • Size 507KB
  • Sample260826-ekae9asbkd
  • SHA256 eb87f2b5a17fd6cb6c7faba2e259f04315e73a16ae874093f0eb6ef44d490591
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
rhysidacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceprivilege_escalationransomwarespywarestealer

Malware Config

Targets

    • Target
      2026-08-25_ea3ff0ab5c5548c70ae759bb4ed99de5_coinminer_rhysida
    • Size 507KB
    • SHA256 eb87f2b5a17fd6cb6c7faba2e259f04315e73a16ae874093f0eb6ef44d490591
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    credential_accessdefense_evasiondiscoveryexecutionrhysidaimpactpersistenceransomwarespywarestealerprivilege_escalation

    • Detect Rhysida ransomware

    • Family: Rhysida

      Rhysida is a ransomware that is written in C++ and discovered in 2023.

      ransomwarerhysida

    • Clears Windows event logs

      defense_evasionransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Detects command variations typically used by ransomware

    • Detects executables containing commands for clearing Windows Event Logs

    • Renames multiple (9967) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

      persistenceprivilege_escalation

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Hide Artifacts: Hidden Window

      Windows that would typically be displayed when an application carries out an operation can be hidden.

      defense_evasion

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

      defense_evasion

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

      persistence

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

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

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Power Settings

1
T1653

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Direct Volume Access

1
T1006

Hide Artifacts

1
T1564

Hidden Window

1
T1564.003

Indicator Removal

4
T1070

Clear Persistence

1
T1070.009

Clear Windows Event Logs

1
T1070.001

File Deletion

2
T1070.004

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

2
T1490

Tasks