Overview

overview

10

Static

static

3

xbd3bd69f7...9c.exe

windows10-2004-x64

10

xbd3bd69f7...9c.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    xbd3bd69f73ac84878a02221950d57a57f8eb50b18f8008a018a6fa70944e6b9c.exe
  • Size 1.7MB
  • Sample260701-fx5mlaez5k
  • SHA256 bd3bd69f73ac84878a02221950d57a57f8eb50b18f8008a018a6fa70944e6b9c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
dcratdefense_evasiondiscoveryexecutioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target
      xbd3bd69f73ac84878a02221950d57a57f8eb50b18f8008a018a6fa70944e6b9c.exe
    • Size 1.7MB
    • SHA256 bd3bd69f73ac84878a02221950d57a57f8eb50b18f8008a018a6fa70944e6b9c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutiondcratinfostealerpersistencerattrojan

    • Family: DcRat

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

      ratinfostealerdcrat

    • 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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

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

Query Registry

1
T1012

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks