Overview

overview

10

Static

static

10

595fab3363...95.exe

windows7-x64

10

595fab3363...95.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    595fab3363e5c90ecf3f7375a0b82d996c96b6a0307ad31e6d79dde07eeb8595.exe

  • Size

    1.1MB

  • Sample

    250114-c3fzmswqhj

  • MD5

    490aa1e56fab47858d780a9fdbafb5bf

  • SHA1

    337d8c93caf41a62f0720ae1f0c02d262ac0a274

  • SHA256

    595fab3363e5c90ecf3f7375a0b82d996c96b6a0307ad31e6d79dde07eeb8595

  • SHA512

    7ff8f6983c789f78f67063745fef92040bb5cb88463e82f6a9f05ba0b48021bd2c541cec6e06726748547f0800abd14dd52fe798feddcb1427a46b87619a4f00

  • SSDEEP

    24576:2TbBv5rUyXV0VTney9cyQJMA+b3iE0nHA6E:IBJgTney9clmA+b3KHe

Score
10/10
dcratdiscoveryinfostealerpersistencerat

Malware Config

Targets

    • Target

      595fab3363e5c90ecf3f7375a0b82d996c96b6a0307ad31e6d79dde07eeb8595.exe

    • Size

      1.1MB

    • MD5

      490aa1e56fab47858d780a9fdbafb5bf

    • SHA1

      337d8c93caf41a62f0720ae1f0c02d262ac0a274

    • SHA256

      595fab3363e5c90ecf3f7375a0b82d996c96b6a0307ad31e6d79dde07eeb8595

    • SHA512

      7ff8f6983c789f78f67063745fef92040bb5cb88463e82f6a9f05ba0b48021bd2c541cec6e06726748547f0800abd14dd52fe798feddcb1427a46b87619a4f00

    • SSDEEP

      24576:2TbBv5rUyXV0VTney9cyQJMA+b3iE0nHA6E:IBJgTney9clmA+b3KHe

    Score
    10/10
    dcratdiscoveryinfostealerpersistencerat

    • 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

    • 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

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