Overview

overview

10

Static

static

10

3ec8a79c37...c2.exe

windows7-x64

10

3ec8a79c37...c2.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    3ec8a79c37b454b049a99fe266d79fc2.exe

  • Size

    1.1MB

  • Sample

    250126-adq27svmas

  • MD5

    3ec8a79c37b454b049a99fe266d79fc2

  • SHA1

    89d63cae0fe6a94eee5d59b2f5e12837a4183a8a

  • SHA256

    0ac36210d2b3663424a66df7c87c9415ced58aabc4871defe1b16e299e6122ce

  • SHA512

    10e924a57eb16071d80f7efedd316eaeda8127752d22c2ab6c6a2287b175af683d6a9138ac9b8749ca38a8772c045e63f75e38b58d36ac44b814c47daf4b3977

  • SSDEEP

    24576:2TbBv5rUyXVYsTn6lY+MSJMA+SL3iE0nH863:IBJ1Tn6lY+9mA+03KH1

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      3ec8a79c37b454b049a99fe266d79fc2.exe

    • Size

      1.1MB

    • MD5

      3ec8a79c37b454b049a99fe266d79fc2

    • SHA1

      89d63cae0fe6a94eee5d59b2f5e12837a4183a8a

    • SHA256

      0ac36210d2b3663424a66df7c87c9415ced58aabc4871defe1b16e299e6122ce

    • SHA512

      10e924a57eb16071d80f7efedd316eaeda8127752d22c2ab6c6a2287b175af683d6a9138ac9b8749ca38a8772c045e63f75e38b58d36ac44b814c47daf4b3977

    • SSDEEP

      24576:2TbBv5rUyXVYsTn6lY+MSJMA+SL3iE0nH863:IBJ1Tn6lY+9mA+03KH1

    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

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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

3
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

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

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
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

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks