Overview

overview

10

Static

static

3

DCRatBuild.exe

windows11-21h2-x64

Resubmissions

02-01-2025 17:54

250102-wg6gyszndw 10

02-01-2025 17:46

250102-wcm5tasqcr 10

02-01-2025 17:29

250102-v2qfsszjgt 10

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General

  • Target

    DCRatBuild.exe

  • Size

    1.9MB

  • Sample

    250102-v2qfsszjgt

  • MD5

    4b61a00f5577de5a7ee8567df7493cce

  • SHA1

    99a5213aa902c60d51b91e109060888155c38216

  • SHA256

    c605ffe0512bb5accf0d1eae0b0e3642734bd6af198ec97c584e56f4b0ef16a1

  • SHA512

    5dc268fb96f453f4143e01a31ccb5496cdcf3ad22a45a0fa5326fd2e888ee8114ec546ef21cf6c21c3a044497e7c54635bb93d5c11d368b533ce78b01f204ba1

  • SSDEEP

    24576:2TbBv5rUyXVDI0yOyS/zqhGaicQCSIHs2VF2r3Gdi4d8bC/HxGu2AA4VsXaaWsLh:IBJkzS/daDsz74GG/RGubA2sX8sLVP

Score
10/10
dcratmodiloaderaspackv2bootkitdefense_evasiondiscoveryinfostealerpersistencerattrojanupx

Malware Config

Targets

    • Target

      DCRatBuild.exe

    • Size

      1.9MB

    • MD5

      4b61a00f5577de5a7ee8567df7493cce

    • SHA1

      99a5213aa902c60d51b91e109060888155c38216

    • SHA256

      c605ffe0512bb5accf0d1eae0b0e3642734bd6af198ec97c584e56f4b0ef16a1

    • SHA512

      5dc268fb96f453f4143e01a31ccb5496cdcf3ad22a45a0fa5326fd2e888ee8114ec546ef21cf6c21c3a044497e7c54635bb93d5c11d368b533ce78b01f204ba1

    • SSDEEP

      24576:2TbBv5rUyXVDI0yOyS/zqhGaicQCSIHs2VF2r3Gdi4d8bC/HxGu2AA4VsXaaWsLh:IBJkzS/daDsz74GG/RGubA2sX8sLVP

    Score
    10/10
    dcratmodiloaderaspackv2bootkitdefense_evasiondiscoveryinfostealerpersistencerattrojanupx

    • DcRat

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

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

      trojanmodiloader

    • Modifies WinLogon for persistence

      persistence

    • Modiloader family

      modiloader

    • ModiLoader Second Stage

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

      persistence

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

      defense_evasion

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Impair Defenses

1
T1562

Safe Mode Boot

1
T1562.009

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

4
T1012

Remote System Discovery

1
T1018

System Information Discovery

4
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