General

  • Target

    585d78b9ffc988d345e7a2a0ee119111.exe

  • Size

    23.9MB

  • Sample

    240511-nqkylshc29

  • MD5

    585d78b9ffc988d345e7a2a0ee119111

  • SHA1

    65b5c6a6c72a845d5610d82ca2aa9a301a907e43

  • SHA256

    82ae530eb29e0c64986dbd019f86cac5eff3daf3c1fb861757a60252eb1e4661

  • SHA512

    574c1f9ecaaeee0cc7afb989e3c3d309beedf3b114fbbb0aa491a285d94e27b4e87626a109805d06edcace458441189cc2dbcd17588c670ce8788c9e8e3a9772

  • SSDEEP

    393216:849/fUrtpuKs+JINSpjQNjqsVsUzpX/Swl6YdecNbLX3IjD4BzB/RLG0jV7ZIfue:cBZs+JIgpjQosVRlKwlOq/X2EtF9IGe

Malware Config

Targets

    • Target

      585d78b9ffc988d345e7a2a0ee119111.exe

    • Size

      23.9MB

    • MD5

      585d78b9ffc988d345e7a2a0ee119111

    • SHA1

      65b5c6a6c72a845d5610d82ca2aa9a301a907e43

    • SHA256

      82ae530eb29e0c64986dbd019f86cac5eff3daf3c1fb861757a60252eb1e4661

    • SHA512

      574c1f9ecaaeee0cc7afb989e3c3d309beedf3b114fbbb0aa491a285d94e27b4e87626a109805d06edcace458441189cc2dbcd17588c670ce8788c9e8e3a9772

    • SSDEEP

      393216:849/fUrtpuKs+JINSpjQNjqsVsUzpX/Swl6YdecNbLX3IjD4BzB/RLG0jV7ZIfue:cBZs+JIgpjQosVRlKwlOq/X2EtF9IGe

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect ZGRat V1

    • Modifies security service

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Creates new service(s)

    • Drops file in Drivers directory

    • Sets service image path in registry

    • Stops running service(s)

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

System Services

2
T1569

Service Execution

2
T1569.002

Persistence

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

1
T1562

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

6
T1012

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

2
T1005

Impact

Service Stop

1
T1489

Tasks