Overview

overview

10

Static

static

5

428472f3ed...eN.exe

windows7-x64

10

428472f3ed...eN.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    428472f3ed4859f706c6ef391cfe701bd069ca1daf000900bb71902fcaa1f64eN

  • Size

    5.9MB

  • Sample

    241009-qkc2xszdmh

  • MD5

    c3b6537f8a5376f1b317924689f07320

  • SHA1

    bb69f960938848763a3276691f55649d8aa226b2

  • SHA256

    428472f3ed4859f706c6ef391cfe701bd069ca1daf000900bb71902fcaa1f64e

  • SHA512

    5ee2868d688326d62745b43da35439063529c3cdfcbbd43e017ccd33bfc121fd03c8afa9470beb39dd622a554e9dd9d84286a27d1163a094962d6bec264640eb

  • SSDEEP

    98304:6trbTA1VtrbTA1AtrbTA1f6hViFmoQY9uoN6LzaLs6hVh6hV:Mc1Hc1Wc1HFmonN7

Score
10/10
chaosdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      428472f3ed4859f706c6ef391cfe701bd069ca1daf000900bb71902fcaa1f64eN

    • Size

      5.9MB

    • MD5

      c3b6537f8a5376f1b317924689f07320

    • SHA1

      bb69f960938848763a3276691f55649d8aa226b2

    • SHA256

      428472f3ed4859f706c6ef391cfe701bd069ca1daf000900bb71902fcaa1f64e

    • SHA512

      5ee2868d688326d62745b43da35439063529c3cdfcbbd43e017ccd33bfc121fd03c8afa9470beb39dd622a554e9dd9d84286a27d1163a094962d6bec264640eb

    • SSDEEP

      98304:6trbTA1VtrbTA1AtrbTA1f6hViFmoQY9uoN6LzaLs6hVh6hV:Mc1Hc1Wc1HFmonN7

    Score
    10/10
    chaosdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • 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

    • Loads dropped DLL

    • 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)

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of SetThreadContext

    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

5
T1012

System Information Discovery

5
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