Overview

overview

10

Static

static

10

c1dcf7f5ba...a6.exe

windows7-x64

10

c1dcf7f5ba...a6.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c1dcf7f5ba1bfb2c010b6241e11fbd045135faf65bab7c785d4e8c910e9d3fa6.exe

  • Size

    539KB

  • Sample

    240417-rz1xzacd49

  • MD5

    3bc67fceb93f6924bcda3896a6b8365a

  • SHA1

    56d0e8e963ee2bf556551fff0f9196439c2351b5

  • SHA256

    c1dcf7f5ba1bfb2c010b6241e11fbd045135faf65bab7c785d4e8c910e9d3fa6

  • SHA512

    f056c800785956e877629feafff9d09606247fb481fc2d68d8cf4594192d68af388a1b0563521706d1f6bd58cec9d643903e579f8fa6323625d57e3865271374

  • SSDEEP

    12288:uWtxw20+rZdGDSnn3/Km1wXWaeLXQKvGGl:3tVTGGnPp47YeGl

Score
10/10
dcratinfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      c1dcf7f5ba1bfb2c010b6241e11fbd045135faf65bab7c785d4e8c910e9d3fa6.exe

    • Size

      539KB

    • MD5

      3bc67fceb93f6924bcda3896a6b8365a

    • SHA1

      56d0e8e963ee2bf556551fff0f9196439c2351b5

    • SHA256

      c1dcf7f5ba1bfb2c010b6241e11fbd045135faf65bab7c785d4e8c910e9d3fa6

    • SHA512

      f056c800785956e877629feafff9d09606247fb481fc2d68d8cf4594192d68af388a1b0563521706d1f6bd58cec9d643903e579f8fa6323625d57e3865271374

    • SSDEEP

      12288:uWtxw20+rZdGDSnn3/Km1wXWaeLXQKvGGl:3tVTGGnPp47YeGl

    Score
    10/10
    dcratinfostealerpersistenceratspywarestealer

    • DcRat

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

      ratinfostealerdcrat

    • 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

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

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

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

Defense Evasion

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks