Overview

overview

10

Static

static

3

7fdcec0921...0N.exe

windows7-x64

10

7fdcec0921...0N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    7fdcec09216465295e52ef182d3d999dbb943b9ca64301171ae6f8fc153d7b40N.exe

  • Size

    2.2MB

  • Sample

    241218-b5y3kaymbj

  • MD5

    5862163947e4c9c8a582139802752500

  • SHA1

    d1f83488f1609e91e410e4ecce1c8a40a0824f4d

  • SHA256

    7fdcec09216465295e52ef182d3d999dbb943b9ca64301171ae6f8fc153d7b40

  • SHA512

    07f767bdcad34165b9bdbce92154ee8fc89436471b7eb7c6bb11f34c2dd110e6163ba9781cfe2d228d915a8c56e62e2c19a677601f4d29477cc4dd1ce1c77448

  • SSDEEP

    49152:IBJ/8S2mDpxl4U/IJL4HfAzqLwvugU6fZ9pHhjEHg2Rl+yJmu3qwX:yZ8S2mDpxl4U/IJL4HfAzqLwvugU6f12

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      7fdcec09216465295e52ef182d3d999dbb943b9ca64301171ae6f8fc153d7b40N.exe

    • Size

      2.2MB

    • MD5

      5862163947e4c9c8a582139802752500

    • SHA1

      d1f83488f1609e91e410e4ecce1c8a40a0824f4d

    • SHA256

      7fdcec09216465295e52ef182d3d999dbb943b9ca64301171ae6f8fc153d7b40

    • SHA512

      07f767bdcad34165b9bdbce92154ee8fc89436471b7eb7c6bb11f34c2dd110e6163ba9781cfe2d228d915a8c56e62e2c19a677601f4d29477cc4dd1ce1c77448

    • SSDEEP

      49152:IBJ/8S2mDpxl4U/IJL4HfAzqLwvugU6fZ9pHhjEHg2Rl+yJmu3qwX:yZ8S2mDpxl4U/IJL4HfAzqLwvugU6f12

    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

    • Loads dropped DLL

    • 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

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

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks