Overview

overview

10

Static

static

10

2025-01-28...ry.exe

windows7-x64

10

2025-01-28...ry.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2025-01-28_b21d7c63eabea7dac241fa813a69f366_destroyer_wannacry

  • Size

    26KB

  • Sample

    250128-swxltasrby

  • MD5

    b21d7c63eabea7dac241fa813a69f366

  • SHA1

    317eec1d89064a962f43ae5bd871bbf7294a042c

  • SHA256

    6837a61a80160c03f656789ae3fe7bdf66b9dd06511b24bf3d9abc5d1d1f6099

  • SHA512

    c56b1e225ac880e4e8290142e39c94974d05ba2295933d58e1eeffea45a283ee808338b7c5b53f370b71ea931c3d791987e0b84a358d8b115c3714e9622f2b23

  • SSDEEP

    384:CtWZPzzxAm1vA50rRxJYilMDwXd/clMOy5o915mb+82vE:H7zxAmMoVYTedFho9ma82M

Score
10/10
chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      2025-01-28_b21d7c63eabea7dac241fa813a69f366_destroyer_wannacry

    • Size

      26KB

    • MD5

      b21d7c63eabea7dac241fa813a69f366

    • SHA1

      317eec1d89064a962f43ae5bd871bbf7294a042c

    • SHA256

      6837a61a80160c03f656789ae3fe7bdf66b9dd06511b24bf3d9abc5d1d1f6099

    • SHA512

      c56b1e225ac880e4e8290142e39c94974d05ba2295933d58e1eeffea45a283ee808338b7c5b53f370b71ea931c3d791987e0b84a358d8b115c3714e9622f2b23

    • SSDEEP

      384:CtWZPzzxAm1vA50rRxJYilMDwXd/clMOy5o915mb+82vE:H7zxAmMoVYTedFho9ma82M

    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

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Disables Task Manager via registry modification

      defense_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)

    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

1
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

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

4
T1490

Tasks