Overview

overview

10

Static

static

3

9f09328091...18.exe

windows7-x64

10

9f09328091...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9f09328091800505339ee1a9f01b6a7646ed60d2ed218.exe

  • Size

    1.9MB

  • Sample

    250207-krp26sxjhq

  • MD5

    aae1c0e394855b9138d9d540a884eb1c

  • SHA1

    76443a092ea47adebb55e663c8299c495dd9e324

  • SHA256

    9f09328091800505339ee1a9f01b6a7646ed60d2ed21808b5e171175f1723b6b

  • SHA512

    a3bda818e3c84e16ae7788ecf4bce9712ab23a152ff164a5cb4e3723e8145ad912cbdc7c2902bb937812e9335733e8252b015eef92d4745b17403a632cbf7322

  • SSDEEP

    49152:HU7L1b7b3wCVJFpcHWhW8bLoym4ZEu9eBknBe6Y:HU7hbXAagWc8fo4ZESc6

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      9f09328091800505339ee1a9f01b6a7646ed60d2ed218.exe

    • Size

      1.9MB

    • MD5

      aae1c0e394855b9138d9d540a884eb1c

    • SHA1

      76443a092ea47adebb55e663c8299c495dd9e324

    • SHA256

      9f09328091800505339ee1a9f01b6a7646ed60d2ed21808b5e171175f1723b6b

    • SHA512

      a3bda818e3c84e16ae7788ecf4bce9712ab23a152ff164a5cb4e3723e8145ad912cbdc7c2902bb937812e9335733e8252b015eef92d4745b17403a632cbf7322

    • SSDEEP

      49152:HU7L1b7b3wCVJFpcHWhW8bLoym4ZEu9eBknBe6Y:HU7hbXAagWc8fo4ZESc6

    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.

    • 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

Browser Information Discovery

1
T1217

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