Overview

overview

10

Static

static

3

f28d248280...ec.exe

windows7-x64

10

f28d248280...ec.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f28d2482802e94cd02376a7153b318ef4facc86cfc804ae117419c520520f8ec

  • Size

    1.8MB

  • Sample

    241210-vr4kns1lbw

  • MD5

    68ef473852d3aefd8e5e4f2e00b3dfaa

  • SHA1

    3ba2594ec459d1c9152558ebdd9611427347a73e

  • SHA256

    f28d2482802e94cd02376a7153b318ef4facc86cfc804ae117419c520520f8ec

  • SHA512

    8602717380a4ad4ca7cbcdbb2373e63ff8578d58e6324d43530b134c6d7005469ff89c45bad773da978d4263a56c51efd331b09790f5708a563f26a513cad3ff

  • SSDEEP

    49152:x4LJMXaJ0ypWp8GkSVPa7aQ8b0U51h3r:x4LJWeK3kE9QY53r

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      f28d2482802e94cd02376a7153b318ef4facc86cfc804ae117419c520520f8ec

    • Size

      1.8MB

    • MD5

      68ef473852d3aefd8e5e4f2e00b3dfaa

    • SHA1

      3ba2594ec459d1c9152558ebdd9611427347a73e

    • SHA256

      f28d2482802e94cd02376a7153b318ef4facc86cfc804ae117419c520520f8ec

    • SHA512

      8602717380a4ad4ca7cbcdbb2373e63ff8578d58e6324d43530b134c6d7005469ff89c45bad773da978d4263a56c51efd331b09790f5708a563f26a513cad3ff

    • SSDEEP

      49152:x4LJMXaJ0ypWp8GkSVPa7aQ8b0U51h3r:x4LJWeK3kE9QY53r

    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

    • 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

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