Overview

overview

10

Static

static

10

b36b064736...75.exe

windows7-x64

10

b36b064736...75.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b36b06473630c63123f3f9f178971c7ac4b07921065723a9ea73ab3556644675.exe

  • Size

    2.4MB

  • Sample

    241130-mq7xps1raw

  • MD5

    b22adfa78630bdb6a544c61d66a5fcef

  • SHA1

    37cc4cf13bb13ecb380b24ea957da90f1efc4a92

  • SHA256

    b36b06473630c63123f3f9f178971c7ac4b07921065723a9ea73ab3556644675

  • SHA512

    8a6e1a374ca7f76c060fa07694a1c13caec49a44e51ed7922b7d5f428d77145078e97ddff16fe562dc3e28e4bf7b4bf52f3d4ba198fceba1c13e9d190014f658

  • SSDEEP

    24576:GeJKuHmdcCw7sUL/4cIG5IuUegPImmW7ayqCwviBwyLBIShZgGaiCkX4GLP1L613:JJKFdaMcQLBxW8qiTNa

Score
10/10
dcratdiscoveryinfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      b36b06473630c63123f3f9f178971c7ac4b07921065723a9ea73ab3556644675.exe

    • Size

      2.4MB

    • MD5

      b22adfa78630bdb6a544c61d66a5fcef

    • SHA1

      37cc4cf13bb13ecb380b24ea957da90f1efc4a92

    • SHA256

      b36b06473630c63123f3f9f178971c7ac4b07921065723a9ea73ab3556644675

    • SHA512

      8a6e1a374ca7f76c060fa07694a1c13caec49a44e51ed7922b7d5f428d77145078e97ddff16fe562dc3e28e4bf7b4bf52f3d4ba198fceba1c13e9d190014f658

    • SSDEEP

      24576:GeJKuHmdcCw7sUL/4cIG5IuUegPImmW7ayqCwviBwyLBIShZgGaiCkX4GLP1L613:JJKFdaMcQLBxW8qiTNa

    Score
    10/10
    dcratinfostealerpersistenceratspywarestealerdiscovery

    • 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.

    • DCRat payload

      rat

    • 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

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