Overview

overview

9

Static

static

3

ransomware...ed.exe

windows10-2004-x64

9

ransomware...ed.exe

windows11-ltsc_2024-x64

9

Sharing

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General

  • Target
    ransomware_clr_unhook_fixed.exe
  • Size 949KB
  • Sample260620-btnsfsdy8s
  • SHA256 e4b6294b3edb902c667da70c0144381bd4850c0fee8bda1c211ceb87bed64bad
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
credential_accessdefense_evasiondiscoverypersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target
      ransomware_clr_unhook_fixed.exe
    • Size 949KB
    • SHA256 e4b6294b3edb902c667da70c0144381bd4850c0fee8bda1c211ceb87bed64bad
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    defense_evasiondiscoverypersistenceransomwaretrojancredential_accessspywarestealer

    • Looks for VirtualBox Guest Additions in registry

      defense_evasion

    • Renames multiple (3383) files with added filename extension

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

      ransomware

    • Looks for VMWare Tools registry key

      defense_evasion

    • 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

    • Windows security modification

      defense_evasiontrojan

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

3
T1112

Virtualization/Sandbox Evasion

2
T1497

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

5
T1012

System Information Discovery

2
T1082

System Time Discovery

1
T1124

Virtualization/Sandbox Evasion

2
T1497

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Tasks