Overview

overview

10

Static

static

3

93306fa847...2f.exe

windows7-x64

10

93306fa847...2f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    93306fa8475e4c32aecfcfb3ace4ef29fee67ce1402f1a8e2cecb2ed4956c92f

  • Size

    1.9MB

  • Sample

    241116-atxvpawbqh

  • MD5

    d555abf32ac6999a3ddd82eff6523be5

  • SHA1

    fc57db7c9856edd9018b4128b96a9a53146bf910

  • SHA256

    93306fa8475e4c32aecfcfb3ace4ef29fee67ce1402f1a8e2cecb2ed4956c92f

  • SHA512

    5c3b30b37394a4b89c1939362fed98f0435d44010b50570cb7841508626de7cdef994890f9736530a94dd065d4ee7bf14cc7dbbe50326c9964a198a21c7d5fa9

  • SSDEEP

    49152:eLviZcjVZitNo7l+/yPyC3A0qu3/JbbdY/m/w0p2ZJ:eLvUcBKopOyPZVVYmN4

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      93306fa8475e4c32aecfcfb3ace4ef29fee67ce1402f1a8e2cecb2ed4956c92f

    • Size

      1.9MB

    • MD5

      d555abf32ac6999a3ddd82eff6523be5

    • SHA1

      fc57db7c9856edd9018b4128b96a9a53146bf910

    • SHA256

      93306fa8475e4c32aecfcfb3ace4ef29fee67ce1402f1a8e2cecb2ed4956c92f

    • SHA512

      5c3b30b37394a4b89c1939362fed98f0435d44010b50570cb7841508626de7cdef994890f9736530a94dd065d4ee7bf14cc7dbbe50326c9964a198a21c7d5fa9

    • SSDEEP

      49152:eLviZcjVZitNo7l+/yPyC3A0qu3/JbbdY/m/w0p2ZJ:eLvUcBKopOyPZVVYmN4

    Score
    10/10
    dcratexecutioninfostealerpersistenceratspywarestealerdiscovery

    • 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.

    • 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

    • 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 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