Overview

overview

10

Static

static

10

433c302a29...e2.exe

windows7-x64

10

433c302a29...e2.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    433c302a290e1ca96522457ffb5f0bcca53641a2c49e00d38db75bbb8db282e2.exe

  • Size

    1.8MB

  • Sample

    250123-d55w8a1nhm

  • MD5

    d7e7b597ce0c3a87c408c197af695fc4

  • SHA1

    abf13cbcb77d1fe2270b3b7746087419f366748d

  • SHA256

    433c302a290e1ca96522457ffb5f0bcca53641a2c49e00d38db75bbb8db282e2

  • SHA512

    7cfbf0bd871b9e04e8cd178e8f82052efb108284a279c8e16ea0087e322dfbf00aca117db9cfccb6b6278134edcbce2b8f3b6c050fa4021f6f65f2ccdaf02c91

  • SSDEEP

    24576:fpu2MG9vXL71sCw7sULd3yRsjBp2gltcEA4pUiD7nApwp6t1:Bu2Mw7Y0RsrB5UiD8pw

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      433c302a290e1ca96522457ffb5f0bcca53641a2c49e00d38db75bbb8db282e2.exe

    • Size

      1.8MB

    • MD5

      d7e7b597ce0c3a87c408c197af695fc4

    • SHA1

      abf13cbcb77d1fe2270b3b7746087419f366748d

    • SHA256

      433c302a290e1ca96522457ffb5f0bcca53641a2c49e00d38db75bbb8db282e2

    • SHA512

      7cfbf0bd871b9e04e8cd178e8f82052efb108284a279c8e16ea0087e322dfbf00aca117db9cfccb6b6278134edcbce2b8f3b6c050fa4021f6f65f2ccdaf02c91

    • SSDEEP

      24576:fpu2MG9vXL71sCw7sULd3yRsjBp2gltcEA4pUiD7nApwp6t1:Bu2Mw7Y0RsrB5UiD8pw

    Score
    10/10
    dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

    • 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.

    • DCRat payload

      rat

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • 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 file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

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

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

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

Browser Information Discovery

1
T1217

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks