Overview

overview

10

Static

static

10

59b9f54f92...43.exe

windows7-x64

10

59b9f54f92...43.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    59b9f54f927431d2cf31d3aa202a0843.exe

  • Size

    2.2MB

  • Sample

    241121-239z6azmft

  • MD5

    59b9f54f927431d2cf31d3aa202a0843

  • SHA1

    b23d214605133dc8e930f9a9d473c7c7622b4b56

  • SHA256

    007c244b9dac3fecd6d8df49314f664afaa4c1c823574108f77189c2925e9594

  • SHA512

    89106822646d8d412d5c956fd01ad37e4b1f34599497f8e362262f82d2d47f4460632019d6ec09da58c45d690ebd03f2812d5809743203be081702680bfb28f8

  • SSDEEP

    24576:9zyhnYISyKSBWpKCeCirC9CMz+052LEgPHQ944INbKK6uK5Ye6KBOO3op+kE9hk4:9zyt2DixLb4I5KKnK5zgdlKWky

Score
10/10
dcratdiscoveryevasioninfostealerpersistenceratspywarestealertrojan

Malware Config

Targets

    • Target

      59b9f54f927431d2cf31d3aa202a0843.exe

    • Size

      2.2MB

    • MD5

      59b9f54f927431d2cf31d3aa202a0843

    • SHA1

      b23d214605133dc8e930f9a9d473c7c7622b4b56

    • SHA256

      007c244b9dac3fecd6d8df49314f664afaa4c1c823574108f77189c2925e9594

    • SHA512

      89106822646d8d412d5c956fd01ad37e4b1f34599497f8e362262f82d2d47f4460632019d6ec09da58c45d690ebd03f2812d5809743203be081702680bfb28f8

    • SSDEEP

      24576:9zyhnYISyKSBWpKCeCirC9CMz+052LEgPHQ944INbKK6uK5Ye6KBOO3op+kE9hk4:9zyt2DixLb4I5KKnK5zgdlKWky

    Score
    10/10
    dcratdiscoveryevasioninfostealerpersistenceratspywarestealertrojan

    • 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

      evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Drops file in Drivers directory

    • 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

    • Checks whether UAC is enabled

      evasiontrojan

    • Looks up external IP address via web service

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

    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

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

Browser Information Discovery

1
T1217

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks