Overview

overview

10

Static

static

10

2025-01-08...ry.exe

windows7-x64

10

2025-01-08...ry.exe

windows10-2004-x64

10

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General

  • Target

    2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry

  • Size

    55KB

  • Sample

    250108-e84zrsvjaw

  • MD5

    bccffd58776272eab71ecd9dde5a1735

  • SHA1

    d263ff45831ed75ac2eab51dfa543beadde51149

  • SHA256

    1c6906f13a8f27d246689f648f9928afda7848f7176aa9845ab926647dfba486

  • SHA512

    5c8bb405986fe1470df3d093629eba296db4ce7c802c32660fd7e7076935b2708ff0a656bc52f298de491b2caa633364c0470835fbb426fdbd1d95f4ecc61860

  • SSDEEP

    1536:GNy0COWkCq9IcHX/NYMGvZFA3FD0TS/+:z03Cq9IcHFYDFAWuW

Score
10/10
chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry

    • Size

      55KB

    • MD5

      bccffd58776272eab71ecd9dde5a1735

    • SHA1

      d263ff45831ed75ac2eab51dfa543beadde51149

    • SHA256

      1c6906f13a8f27d246689f648f9928afda7848f7176aa9845ab926647dfba486

    • SHA512

      5c8bb405986fe1470df3d093629eba296db4ce7c802c32660fd7e7076935b2708ff0a656bc52f298de491b2caa633364c0470835fbb426fdbd1d95f4ecc61860

    • SSDEEP

      1536:GNy0COWkCq9IcHX/NYMGvZFA3FD0TS/+:z03Cq9IcHFYDFAWuW

    Score
    10/10
    chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Chaos family

      chaos

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (178) files with added filename extension

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

      ransomware

    • 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 Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Management Instrumentation

1
T1047

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

Direct Volume Access

1
T1006

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

2
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

4
T1490

Tasks