Overview

overview

10

Static

static

3

NursultanCrack.exe

windows7-x64

10

NursultanCrack.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    NursultanCrack.exe

  • Size

    1.7MB

  • Sample

    241130-qdcsksypbk

  • MD5

    062e3b4cd1878667da10f08bdd209dd6

  • SHA1

    c6d785f9df07b202f2db280016c5773092dd111a

  • SHA256

    2ebcbc7ecacf1e3398613aa73dc2bff59b0bc0cf2724b68a20fe071a054c2d80

  • SHA512

    6e598e330cb1c9db77edca1ea51d8aaa1939278a3ba480e2eb922a8b0f17b28a768150dbdcf660ae51468967dd447580bc68bf428148ea1ccecec85c67719fd6

  • SSDEEP

    49152:3BIjEaf0EC0bEvDC3B6Bo2UPjAgAecjJl/ud:xQEwvAC3oUPjuRlmd

Score
10/10
dcratdiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      NursultanCrack.exe

    • Size

      1.7MB

    • MD5

      062e3b4cd1878667da10f08bdd209dd6

    • SHA1

      c6d785f9df07b202f2db280016c5773092dd111a

    • SHA256

      2ebcbc7ecacf1e3398613aa73dc2bff59b0bc0cf2724b68a20fe071a054c2d80

    • SHA512

      6e598e330cb1c9db77edca1ea51d8aaa1939278a3ba480e2eb922a8b0f17b28a768150dbdcf660ae51468967dd447580bc68bf428148ea1ccecec85c67719fd6

    • SSDEEP

      49152:3BIjEaf0EC0bEvDC3B6Bo2UPjAgAecjJl/ud:xQEwvAC3oUPjuRlmd

    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

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks