Overview

overview

10

Static

static

3

076c80010c...33.exe

windows7-x64

10

076c80010c...33.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    076c80010cb400aa03881eb5d88c6e2e4677c0d405255c48154bcf780e549533.exe

  • Size

    2.2MB

  • Sample

    250114-chr66swlcr

  • MD5

    be4ae5e0b545e43608ae6a60ce297871

  • SHA1

    ded512ee44ed38b7a6541b4e1d797387a27a5d93

  • SHA256

    076c80010cb400aa03881eb5d88c6e2e4677c0d405255c48154bcf780e549533

  • SHA512

    45aafc3ec5787b1bf143a1d6b9f8ce79447157879c684849486d87a3a7b357862688016809277ff2c9e57a6d06a0613e12009c5a279d07ced4ecc3b3bc9cd0c3

  • SSDEEP

    24576:2TbBv5rUyXVoEmEVLqBMwOk+ADUZjmwMUuTEZ/iJJjhs4P/r+iHtxItZPFtOObx5:IBJvZ+qwOZFM+aJJbL+iNuuMxoyW29L

Score
10/10
dcratdiscoveryexecutioninfostealerpersistencerat

Malware Config

Targets

    • Target

      076c80010cb400aa03881eb5d88c6e2e4677c0d405255c48154bcf780e549533.exe

    • Size

      2.2MB

    • MD5

      be4ae5e0b545e43608ae6a60ce297871

    • SHA1

      ded512ee44ed38b7a6541b4e1d797387a27a5d93

    • SHA256

      076c80010cb400aa03881eb5d88c6e2e4677c0d405255c48154bcf780e549533

    • SHA512

      45aafc3ec5787b1bf143a1d6b9f8ce79447157879c684849486d87a3a7b357862688016809277ff2c9e57a6d06a0613e12009c5a279d07ced4ecc3b3bc9cd0c3

    • SSDEEP

      24576:2TbBv5rUyXVoEmEVLqBMwOk+ADUZjmwMUuTEZ/iJJjhs4P/r+iHtxItZPFtOObx5:IBJvZ+qwOZFM+aJJbL+iNuuMxoyW29L

    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.

    • 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

    • 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

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