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_ddaa09b5c3bf5aa24e300c24905469f2_rhysida

  • Size

    497KB

  • Sample

    241121-b6c7gsslfj

  • MD5

    ddaa09b5c3bf5aa24e300c24905469f2

  • SHA1

    ebedfbe0a696bd87c4e2d27e3448a61f02bab021

  • SHA256

    f06b905626d742ec5a1eab8027d9097b74fd0413a901d0599eac8555d1f89e50

  • SHA512

    a1826d23ef54d75bdee465727f1609a12407923fdf951124f968ab204e92da079a73e71292f2eddb7f2187c169b422bb720df6cb185b8ca26111b324fd555db0

  • SSDEEP

    6144:yFoCbN9uRhQW8HnuYqWrJhN7L6aMFNYkS+D5gtuMf9opagj7T:/qnTp7N78Y5e5gUG9o/

Score
10/10
rhysidacredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      2024-11-21_ddaa09b5c3bf5aa24e300c24905469f2_rhysida

    • Size

      497KB

    • MD5

      ddaa09b5c3bf5aa24e300c24905469f2

    • SHA1

      ebedfbe0a696bd87c4e2d27e3448a61f02bab021

    • SHA256

      f06b905626d742ec5a1eab8027d9097b74fd0413a901d0599eac8555d1f89e50

    • SHA512

      a1826d23ef54d75bdee465727f1609a12407923fdf951124f968ab204e92da079a73e71292f2eddb7f2187c169b422bb720df6cb185b8ca26111b324fd555db0

    • SSDEEP

      6144:yFoCbN9uRhQW8HnuYqWrJhN7L6aMFNYkS+D5gtuMf9opagj7T:/qnTp7N78Y5e5gUG9o/

    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 (8113) 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