Overview

overview

10

Static

static

10

2025-02-18...ry.exe

windows7-x64

10

2025-02-18...ry.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2025-02-18_55d7b767f0213d18e4de54350c3891a9_wannacry

  • Size

    5.6MB

  • Sample

    250218-kz78qayrbn

  • MD5

    55d7b767f0213d18e4de54350c3891a9

  • SHA1

    d2b74d78591cedbd9b22de2cf4a155514cafbaca

  • SHA256

    65bfacb5497982e5f9af9c76efc44509fb2629d85c636273d8c7d605a34e8522

  • SHA512

    61b14063501afe53a88c0a8039476a27db5ab4d38b4037eb861355f816bc4f99db133d323cfc674cd691877ac0b9a4b6de9a37cb5f70b21fec37baace2cc3e8b

  • SSDEEP

    384:/3MLWHn3kIsd+KYgCyJpVwjonJ7r91CzKlnnnnnnnu51RTZhpN0epN:rn3kInjryJpVCoJ7r9iwnnnnnnng0en

Score
10/10
chaosdefense_evasiondiscoveryevasionexecutionimpactransomwarespywarestealer

Malware Config

Targets

    • Target

      2025-02-18_55d7b767f0213d18e4de54350c3891a9_wannacry

    • Size

      5.6MB

    • MD5

      55d7b767f0213d18e4de54350c3891a9

    • SHA1

      d2b74d78591cedbd9b22de2cf4a155514cafbaca

    • SHA256

      65bfacb5497982e5f9af9c76efc44509fb2629d85c636273d8c7d605a34e8522

    • SHA512

      61b14063501afe53a88c0a8039476a27db5ab4d38b4037eb861355f816bc4f99db133d323cfc674cd691877ac0b9a4b6de9a37cb5f70b21fec37baace2cc3e8b

    • SSDEEP

      384:/3MLWHn3kIsd+KYgCyJpVwjonJ7r91CzKlnnnnnnnu51RTZhpN0epN:rn3kInjryJpVCoJ7r9iwnnnnnnng0en

    Score
    10/10
    chaosdefense_evasiondiscoveryevasionexecutionimpactransomwarespywarestealer

    • 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

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • 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

    • 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

Privilege Escalation

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

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

4
T1490

Tasks