Overview

overview

10

Static

static

10

25bd57fe41...65.exe

windows7-x64

10

25bd57fe41...65.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    25bd57fe41090c497e345576494bfdde075a447d2869817bf33d5adcbad10465.exe

  • Size

    1.3MB

  • Sample

    241226-k3fyms1pev

  • MD5

    a2ed0b9ac4d22a5fd805989e8fddaa08

  • SHA1

    d4ac9a85a5aa9e38dbed515b73d39ae10161c14e

  • SHA256

    25bd57fe41090c497e345576494bfdde075a447d2869817bf33d5adcbad10465

  • SHA512

    0f9d8f3ba9a78b780f4902ce1c2ea0681bcfe27652a4d4cb48590a5396840450389941c2af97051f4f669b6787d4536612536feabacecfbb5ce01ef8a49217f8

  • SSDEEP

    12288:4/weO8te/Elj30M9XKGlZOPHsejzfqnN+ByLWJXonZP3g3nTfrWzNnT4yi0krJto:IkDcZrEqC6BGx8GLvOqYaky4

Score
10/10
chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      25bd57fe41090c497e345576494bfdde075a447d2869817bf33d5adcbad10465.exe

    • Size

      1.3MB

    • MD5

      a2ed0b9ac4d22a5fd805989e8fddaa08

    • SHA1

      d4ac9a85a5aa9e38dbed515b73d39ae10161c14e

    • SHA256

      25bd57fe41090c497e345576494bfdde075a447d2869817bf33d5adcbad10465

    • SHA512

      0f9d8f3ba9a78b780f4902ce1c2ea0681bcfe27652a4d4cb48590a5396840450389941c2af97051f4f669b6787d4536612536feabacecfbb5ce01ef8a49217f8

    • SSDEEP

      12288:4/weO8te/Elj30M9XKGlZOPHsejzfqnN+ByLWJXonZP3g3nTfrWzNnT4yi0krJto:IkDcZrEqC6BGx8GLvOqYaky4

    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

      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