Overview

overview

10

Static

static

3

3e5248f104...2e.exe

windows7-x64

10

3e5248f104...2e.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3e5248f104ad4f61a08be2095ad66b15b70eb71eadae6069f3934b2e8015662e

  • Size

    3.5MB

  • Sample

    250109-3dgsrawpcn

  • MD5

    accbf832237d67ef4d2365eb58ec879a

  • SHA1

    f4783cc5a710dbad978e5822baa1434667afdbf9

  • SHA256

    3e5248f104ad4f61a08be2095ad66b15b70eb71eadae6069f3934b2e8015662e

  • SHA512

    d57aff8691e2599ec499f0bfd60993a4d50d5ac24dfb241d92cde09ecc6b5d13d6382ee5bc37159daaf7524d40ad2191c7319a7a2c94098b8819121450bc0e25

  • SSDEEP

    98304:yavksCUOrq2tIMV6fjGDYt8Ucu0ne+Enl0nZko:UIKq2tdVRi820nAlTo

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      3e5248f104ad4f61a08be2095ad66b15b70eb71eadae6069f3934b2e8015662e

    • Size

      3.5MB

    • MD5

      accbf832237d67ef4d2365eb58ec879a

    • SHA1

      f4783cc5a710dbad978e5822baa1434667afdbf9

    • SHA256

      3e5248f104ad4f61a08be2095ad66b15b70eb71eadae6069f3934b2e8015662e

    • SHA512

      d57aff8691e2599ec499f0bfd60993a4d50d5ac24dfb241d92cde09ecc6b5d13d6382ee5bc37159daaf7524d40ad2191c7319a7a2c94098b8819121450bc0e25

    • SSDEEP

      98304:yavksCUOrq2tIMV6fjGDYt8Ucu0ne+Enl0nZko:UIKq2tdVRi820nAlTo

    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

    • 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