Overview

overview

10

Static

static

3

fb4f2125a5...56.exe

windows10-2004-x64

10

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General

  • Target

    fb4f2125a50a9b9c4dbab873e3390356.exe

  • Size

    28.3MB

  • Sample

    250206-2pk4wazkft

  • MD5

    fb4f2125a50a9b9c4dbab873e3390356

  • SHA1

    1a35bb722ab427ef7a739fa1366a302383569f61

  • SHA256

    3798fff79e09d26cb8233719f946cf49d90eaec3d6f580304a9f6818f4f0870b

  • SHA512

    73900fc52221a42f7c546a1b93e97cf40ebd299817985545355c837b40e6656b25cdd7685624b97a89a766b7410fbc855043125eba23bc145e0937d68f2bf261

  • SSDEEP

    786432:QjEVGB9XHZHAkLva99FHEcBo7dZ7IndVXIAxlNIwmDS:QjEYnXHykGjXBo7zOVIyzNmDS

Score
10/10
dcratdefense_evasiondiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      fb4f2125a50a9b9c4dbab873e3390356.exe

    • Size

      28.3MB

    • MD5

      fb4f2125a50a9b9c4dbab873e3390356

    • SHA1

      1a35bb722ab427ef7a739fa1366a302383569f61

    • SHA256

      3798fff79e09d26cb8233719f946cf49d90eaec3d6f580304a9f6818f4f0870b

    • SHA512

      73900fc52221a42f7c546a1b93e97cf40ebd299817985545355c837b40e6656b25cdd7685624b97a89a766b7410fbc855043125eba23bc145e0937d68f2bf261

    • SSDEEP

      786432:QjEVGB9XHZHAkLva99FHEcBo7dZ7IndVXIAxlNIwmDS:QjEYnXHykGjXBo7zOVIyzNmDS

    Score
    10/10
    dcratdefense_evasiondiscoveryexecutioninfostealerpersistenceratspywarestealer

    • 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

    • Deobfuscate/Decode Files or Information

      Payload decoded via CertUtil.

      defense_evasion

    • Drops file in System32 directory

    behavioral1

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

Deobfuscate/Decode Files or Information

1
T1140

Modify Registry

2
T1112

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

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks