Overview

overview

10

Static

static

3

18a6abdb4c...19.exe

windows7-x64

10

18a6abdb4c...19.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    18a6abdb4cbcda4ac8cd3dcfeed13ff1506b6355912f6a7f479fdcd4a3f2c919.exe

  • Size

    1.8MB

  • Sample

    250123-cl26jsxjev

  • MD5

    e00bc016a35cf87fb0db9dc0d6c3b8b8

  • SHA1

    0281222335121e2e85a88a754c8451679084f8c0

  • SHA256

    18a6abdb4cbcda4ac8cd3dcfeed13ff1506b6355912f6a7f479fdcd4a3f2c919

  • SHA512

    a0a3281ce3dcacdd2a5c2848e514a1c54dca44eab3b06be68c1fd175a082742a06580af1158f79102c8229249911442aea7afc36ed6ca4e944d4594db2ae41f7

  • SSDEEP

    24576:FcVMaOQA6hGM5SXggIREn1a0BnuvmgwVhlMv5mXwVzO5PEBYrbZH02KhAbB5YakG:F8zAqHRE1nnu+NYoAV6mobRZKyrY

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      18a6abdb4cbcda4ac8cd3dcfeed13ff1506b6355912f6a7f479fdcd4a3f2c919.exe

    • Size

      1.8MB

    • MD5

      e00bc016a35cf87fb0db9dc0d6c3b8b8

    • SHA1

      0281222335121e2e85a88a754c8451679084f8c0

    • SHA256

      18a6abdb4cbcda4ac8cd3dcfeed13ff1506b6355912f6a7f479fdcd4a3f2c919

    • SHA512

      a0a3281ce3dcacdd2a5c2848e514a1c54dca44eab3b06be68c1fd175a082742a06580af1158f79102c8229249911442aea7afc36ed6ca4e944d4594db2ae41f7

    • SSDEEP

      24576:FcVMaOQA6hGM5SXggIREn1a0BnuvmgwVhlMv5mXwVzO5PEBYrbZH02KhAbB5YakG:F8zAqHRE1nnu+NYoAV6mobRZKyrY

    Score
    10/10
    dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

    • 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

Browser Information Discovery

1
T1217

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks