Overview

overview

10

Static

static

10

3333.exe

windows7-x64

10

3333.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3333.exe

  • Size

    2.9MB

  • Sample

    240724-yd7xqawgre

  • MD5

    e3ccd6a2701efa699716b246537e2638

  • SHA1

    99d076ddd9632da199864dd17b203cd08a2b86ca

  • SHA256

    85467693f9cd5827067ef9594f259c366bc2e97e80d0da3b82d36fe352cc0332

  • SHA512

    676d3eabe3eb6b85283f007c27fed0b5296b75a95138d31ea4901e87797d38336f055f561070dacb8fed74476cf173598771bb2d1578a76df6d8a86b65876675

  • SSDEEP

    49152:ubA3jCyW7zmF6afLWLcUba35AmGMFgeXTpmcLSWo3aF9:ubkW/dEiLcUxmGTeXTFwqF9

Score
10/10
dcratcredential_accessdiscoveryevasioninfostealerpersistenceratspywarestealertrojan

Malware Config

Targets

    • Target

      3333.exe

    • Size

      2.9MB

    • MD5

      e3ccd6a2701efa699716b246537e2638

    • SHA1

      99d076ddd9632da199864dd17b203cd08a2b86ca

    • SHA256

      85467693f9cd5827067ef9594f259c366bc2e97e80d0da3b82d36fe352cc0332

    • SHA512

      676d3eabe3eb6b85283f007c27fed0b5296b75a95138d31ea4901e87797d38336f055f561070dacb8fed74476cf173598771bb2d1578a76df6d8a86b65876675

    • SSDEEP

      49152:ubA3jCyW7zmF6afLWLcUba35AmGMFgeXTpmcLSWo3aF9:ubkW/dEiLcUxmGTeXTFwqF9

    Score
    10/10
    dcratcredential_accessdiscoveryevasioninfostealerpersistenceratspywarestealertrojan

    • 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

      evasiontrojan

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

      credential_accessstealer

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Disables Task Manager via registry modification

      evasion

    • 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

    • Checks whether UAC is enabled

      evasiontrojan
    behavioral1behavioral2

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

5
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

3
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

Tasks