Overview

overview

10

Static

static

10

c95e4d5e7d...3b.exe

windows7-x64

10

c95e4d5e7d...3b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c95e4d5e7d22991fdc472c95d1d042a44ded78ae9c654d7cebb30dad823d813b.exe

  • Size

    2.4MB

  • Sample

    241130-dq2agstmhk

  • MD5

    b1a3e0cf075438056659b4fbaee9f80b

  • SHA1

    73c9bd7cd9e48b7ae22b397f538933f8c49b4674

  • SHA256

    c95e4d5e7d22991fdc472c95d1d042a44ded78ae9c654d7cebb30dad823d813b

  • SHA512

    ba37ffb6a906736cfe490a7934b9b1481c9cfcd59044d5333bb0193cbf39ae8c0d22599a0d38bd0b124d0fbb17701f41ac46b361f1bcf9f810c33d673633461f

  • SSDEEP

    24576:GeJKuHmdcCw7sUL/4cIG5IuUegPImmW7ayqCwviBwyLBIShZgGaiCkX4GLP1L61+:JJKFdaMcQLBxW8qiTN

Score
10/10
dcratdiscoveryinfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      c95e4d5e7d22991fdc472c95d1d042a44ded78ae9c654d7cebb30dad823d813b.exe

    • Size

      2.4MB

    • MD5

      b1a3e0cf075438056659b4fbaee9f80b

    • SHA1

      73c9bd7cd9e48b7ae22b397f538933f8c49b4674

    • SHA256

      c95e4d5e7d22991fdc472c95d1d042a44ded78ae9c654d7cebb30dad823d813b

    • SHA512

      ba37ffb6a906736cfe490a7934b9b1481c9cfcd59044d5333bb0193cbf39ae8c0d22599a0d38bd0b124d0fbb17701f41ac46b361f1bcf9f810c33d673633461f

    • SSDEEP

      24576:GeJKuHmdcCw7sUL/4cIG5IuUegPImmW7ayqCwviBwyLBIShZgGaiCkX4GLP1L61+:JJKFdaMcQLBxW8qiTN

    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