Overview

overview

10

Static

static

1

kdmapper.7z

windows7-x64

1

kdmapper.7z

windows10-2004-x64

10

Sharing

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General

  • Target

    kdmapper.7z

  • Size

    3.5MB

  • Sample

    250324-pxbtyszwbv

  • MD5

    126845468658d736498b172bda22510a

  • SHA1

    9281027cc8af123f08a58daa5f890c02f9afca02

  • SHA256

    5269e48c323090f07365fbcfb4430419b7f0f41ab5d34021aac32921997deed3

  • SHA512

    e2e4b158bad87d87f4a0c53d266b28a10a27a3f93091c5c6319b7f5e33c9ab458991295f2e5347cde7e316dc4f9f52f00b0690fe71f1f6b0e67c190732bbdc82

  • SSDEEP

    98304:xDe9XhNbK/nDwAnVNC0kgjuc0dipgDcKe/noSc0WIMUz8:x8NO/MWNCsScxpggKe/nkJV

Score
10/10
dcratdiscoveryexecutioninfostealerpersistencerat

Malware Config

Targets

    • Target

      kdmapper.7z

    • Size

      3.5MB

    • MD5

      126845468658d736498b172bda22510a

    • SHA1

      9281027cc8af123f08a58daa5f890c02f9afca02

    • SHA256

      5269e48c323090f07365fbcfb4430419b7f0f41ab5d34021aac32921997deed3

    • SHA512

      e2e4b158bad87d87f4a0c53d266b28a10a27a3f93091c5c6319b7f5e33c9ab458991295f2e5347cde7e316dc4f9f52f00b0690fe71f1f6b0e67c190732bbdc82

    • SSDEEP

      98304:xDe9XhNbK/nDwAnVNC0kgjuc0dipgDcKe/noSc0WIMUz8:x8NO/MWNCsScxpggKe/nkJV

    Score
    10/10
    dcratdiscoveryexecutioninfostealerpersistencerat

    • 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

    • 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

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks