Overview

overview

10

Static

static

3

3d92f050fc...cb.exe

windows7-x64

10

3d92f050fc...cb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3d92f050fc88966bd639d315d04fa9fb686ba5f61b2ac81c1e47449125a5a9cb.exe

  • Size

    1.9MB

  • Sample

    241106-c1wmbateqj

  • MD5

    059dd6a8cb2d31871bb82dbb158965fa

  • SHA1

    10507debf7b1a88791b65fc08a5b995f9b873aee

  • SHA256

    3d92f050fc88966bd639d315d04fa9fb686ba5f61b2ac81c1e47449125a5a9cb

  • SHA512

    3a9e138d8682f6e22ddcdd480da8cd6893d86cf1e48b7e4232c1cd87a9abe2a3e29577201ace85cf551739c33855352c081c85a2992eb60c2947a1524634580e

  • SSDEEP

    24576:2TbBv5rUyXVfKEYWAa5pLMzdFGZWWs5cRtb6kMgmrmtXVdaNjTXf3qtzdzkkJj6c:IBJfp1JAz5cjb6k4cFdaNjTXfa/h

Score
10/10
dcratdiscoveryexecutioninfostealerpersistencerat

Malware Config

Targets

    • Target

      3d92f050fc88966bd639d315d04fa9fb686ba5f61b2ac81c1e47449125a5a9cb.exe

    • Size

      1.9MB

    • MD5

      059dd6a8cb2d31871bb82dbb158965fa

    • SHA1

      10507debf7b1a88791b65fc08a5b995f9b873aee

    • SHA256

      3d92f050fc88966bd639d315d04fa9fb686ba5f61b2ac81c1e47449125a5a9cb

    • SHA512

      3a9e138d8682f6e22ddcdd480da8cd6893d86cf1e48b7e4232c1cd87a9abe2a3e29577201ace85cf551739c33855352c081c85a2992eb60c2947a1524634580e

    • SSDEEP

      24576:2TbBv5rUyXVfKEYWAa5pLMzdFGZWWs5cRtb6kMgmrmtXVdaNjTXf3qtzdzkkJj6c:IBJfp1JAz5cjb6k4cFdaNjTXfa/h

    Score
    10/10
    dcratdiscoveryexecutioninfostealerpersistencerat

    • 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

    • 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

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks