Overview

overview

10

Static

static

10

3ea6df1849...ac.exe

windows7-x64

10

3ea6df1849...ac.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b03d1cb5b7a1f632e83f557a6a5e993bb40b81b1e2dbf3383ead13782b0aef27

  • Size

    102KB

  • Sample

    240417-r3rhpsce84

  • MD5

    e29555fabb15cc6cd98e6ac846554d19

  • SHA1

    fec74e4b2ea24575778bc848268f67344f56bb00

  • SHA256

    b03d1cb5b7a1f632e83f557a6a5e993bb40b81b1e2dbf3383ead13782b0aef27

  • SHA512

    082cea2c06206d83e3c92db41a952aed394b304eed867ef17b0bfdce169109d45dc39ec5a0aebbb04e9cfcc20b7df83016e1d37b0dd4bd9b1b64758a145375ad

  • SSDEEP

    3072:qPxMnA2+lXMqRq6mlaRXtTlrT7443qhAgX5CuxJj7qK:W2nAtHQlSl74VAgXXGK

Score
10/10
chaosevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      3ea6df18492d21811421659c4cf9b88e64c316f2bef8a19766b0c79012476cac.exe

    • Size

      282KB

    • MD5

      08c7ff3a65f703d12fc644b63dff19d5

    • SHA1

      f38e8932f4c88c1fd801696267924c6767155028

    • SHA256

      3ea6df18492d21811421659c4cf9b88e64c316f2bef8a19766b0c79012476cac

    • SHA512

      367761edc864129ae074b503a12dc339255ae8cebeb21eb45c1e5083351cacfcb0cd0589e66f18c9b2769c73169305871c5dfe012d45aedb18fa1a866369b4bb

    • SSDEEP

      3072:16biq9hBxqDhNiMLbfyU9+SHfZLoL9oic6VlQbuKGOQzEjQVnDnRM4n9gQ:1kiq9H8DLVLbf9r/ZLr6YbuC0hRZ9g

    Score
    10/10
    chaosevasionpersistenceransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Disables Task Manager via registry modification

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

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

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

4
T1490

Defacement

1
T1491

Resource Development

Reconnaissance

Tasks