Overview

overview

10

Static

static

3

953d9c6534...e3.exe

windows7-x64

10

953d9c6534...e3.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    953d9c6534dd4dda5dc6c53755974e39947672ea521ddfb613a8c28a4f3c10e3.exe

  • Size

    1.9MB

  • Sample

    250107-c5sffszpbz

  • MD5

    fecafe9a80257e221c47577e704498f3

  • SHA1

    79960aa863f445b93531afc55aad6215a2c1bb08

  • SHA256

    953d9c6534dd4dda5dc6c53755974e39947672ea521ddfb613a8c28a4f3c10e3

  • SHA512

    c48694e93a5b46bb9cb6ada78e8ad642d142be7b27249bb5e75521b14eb5805c9cd51fa7836d91c40840f2e7fbb46e4b8aeedb9eab688fc26020eba03f381141

  • SSDEEP

    49152:RbYg0qXO9NNBZXRd6ewK8LrcOk+tWh08RT:hYg039NNBx3lGMh08R

Score
10/10
dcratdiscoveryexecutioninfostealerpersistencerat

Malware Config

Targets

    • Target

      953d9c6534dd4dda5dc6c53755974e39947672ea521ddfb613a8c28a4f3c10e3.exe

    • Size

      1.9MB

    • MD5

      fecafe9a80257e221c47577e704498f3

    • SHA1

      79960aa863f445b93531afc55aad6215a2c1bb08

    • SHA256

      953d9c6534dd4dda5dc6c53755974e39947672ea521ddfb613a8c28a4f3c10e3

    • SHA512

      c48694e93a5b46bb9cb6ada78e8ad642d142be7b27249bb5e75521b14eb5805c9cd51fa7836d91c40840f2e7fbb46e4b8aeedb9eab688fc26020eba03f381141

    • SSDEEP

      49152:RbYg0qXO9NNBZXRd6ewK8LrcOk+tWh08RT:hYg039NNBx3lGMh08R

    Score
    10/10
    dcratdiscoveryexecutioninfostealerpersistencerat

    • 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

    • Adds Run key to start application

      persistence

    • 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

2
T1112

Credential Access

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

Command and Control

Exfiltration

Impact

Tasks