Overview

overview

10

Static

static

10

2024-11-21...da.exe

windows7-x64

10

2024-11-21...da.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-11-21_c43f12b8330643c72d21bad3b6cfcf82_rhysida

  • Size

    497KB

  • Sample

    241121-b4rxvssldn

  • MD5

    c43f12b8330643c72d21bad3b6cfcf82

  • SHA1

    f453f42de8151323472dbe35b5d48084e0012216

  • SHA256

    a0d4d52885b654cbfeefd194359936072133519c2bc7e8f68b7b668e59c67b94

  • SHA512

    987ce1e4dd8f69100b1514a1c9b0a2abad5fa028dc9a22532fb088308596e8f372d30cb89f140927c459421febe762cfe3668ec21b9deb546e7a50266d605efe

  • SSDEEP

    6144:UFoCbN9uRh5W8iZuYtWrJhN7L6aMFNCk0Y+sPgtuMf9opaMPdZXT:qvZTs7N78CrZsPgUG9oDlZ

Score
10/10
rhysidacredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      2024-11-21_c43f12b8330643c72d21bad3b6cfcf82_rhysida

    • Size

      497KB

    • MD5

      c43f12b8330643c72d21bad3b6cfcf82

    • SHA1

      f453f42de8151323472dbe35b5d48084e0012216

    • SHA256

      a0d4d52885b654cbfeefd194359936072133519c2bc7e8f68b7b668e59c67b94

    • SHA512

      987ce1e4dd8f69100b1514a1c9b0a2abad5fa028dc9a22532fb088308596e8f372d30cb89f140927c459421febe762cfe3668ec21b9deb546e7a50266d605efe

    • SSDEEP

      6144:UFoCbN9uRh5W8iZuYtWrJhN7L6aMFNCk0Y+sPgtuMf9opaMPdZXT:qvZTs7N78CrZsPgUG9oDlZ

    Score
    10/10
    rhysidacredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

    • Detect Rhysida ransomware

    • Rhysida

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

      ransomwarerhysida

    • Rhysida family

      rhysida

    • Clears Windows event logs

      evasionransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (8136) 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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Drops startup file

    • 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 v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Windows Management Instrumentation

1
T1047

Persistence

Power Settings

1
T1653

Privilege Escalation

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