Overview

overview

10

Static

static

10

DCRatBuild.exe

windows10-2004-x64

10

Resubmissions

02-02-2025 06:58

250202-hrxqxasncn 10

02-02-2025 06:26

250202-g7j93szkbt 10

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General

  • Target

    DCRatBuild.bat

  • Size

    2.2MB

  • Sample

    250202-hrxqxasncn

  • MD5

    f961009433ca2f3a302b6a7236bc7ef4

  • SHA1

    de9c950643db1fd43fd37d1f01db5d186a492244

  • SHA256

    b4b47571926c6fb637d7ca1f9ce6e171ab98f8d63f9efb89954ca9aa10c8260b

  • SHA512

    3637e15257a813ed87ad05ebc4fc28550c8440afe06e07205309c69f615e03f0cc7e318357fabe7951c729c56d079e188aad4b10e1e4feabf010e11e729875a1

  • SSDEEP

    49152:UbA30EQtOTsSj5tM1xb5fO7jR1SaZRX62:UbFCBjHgx1fsjR1ne2

Score
10/10
dcratdefense_evasiondiscoveryinfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      DCRatBuild.bat

    • Size

      2.2MB

    • MD5

      f961009433ca2f3a302b6a7236bc7ef4

    • SHA1

      de9c950643db1fd43fd37d1f01db5d186a492244

    • SHA256

      b4b47571926c6fb637d7ca1f9ce6e171ab98f8d63f9efb89954ca9aa10c8260b

    • SHA512

      3637e15257a813ed87ad05ebc4fc28550c8440afe06e07205309c69f615e03f0cc7e318357fabe7951c729c56d079e188aad4b10e1e4feabf010e11e729875a1

    • SSDEEP

      49152:UbA30EQtOTsSj5tM1xb5fO7jR1SaZRX62:UbFCBjHgx1fsjR1ne2

    Score
    10/10
    dcratdefense_evasiondiscoveryinfostealerpersistencerattrojan

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • Modifies WinLogon for persistence

      persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

      defense_evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

Remote System Discovery

1
T1018

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks