Overview

overview

10

Static

static

10

4735bb00bc...ef.exe

windows7-x64

10

4735bb00bc...ef.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4735bb00bcb92c0c5d85599e289925ef.exe

  • Size

    3.2MB

  • Sample

    250208-yavszszmft

  • MD5

    4735bb00bcb92c0c5d85599e289925ef

  • SHA1

    90dee1ecc8721777366e9c0d2d3c9fc2df6a925b

  • SHA256

    8d34477674ccda710d5acd22a1ea3ce7c9e818d7b6d3b19200c896fcf42f5b4b

  • SHA512

    673a67e73f8d3a31403cee50234d3160afe3eda75f75935677f9da0e955e28e67d9265c1a23c80b0fab7bd1aaa85ece8e3bf1bf085e76d9cbbd498a34a77287e

  • SSDEEP

    98304:BjxkN1YiQ2DmsiJb0D2OG5Mbser0ZAY8pD1X0C:B161YitDZiJoZgAY8pDl0

Score
10/10
dcratdefense_evasiondiscoveryinfostealerrattrojan

Malware Config

Targets

    • Target

      4735bb00bcb92c0c5d85599e289925ef.exe

    • Size

      3.2MB

    • MD5

      4735bb00bcb92c0c5d85599e289925ef

    • SHA1

      90dee1ecc8721777366e9c0d2d3c9fc2df6a925b

    • SHA256

      8d34477674ccda710d5acd22a1ea3ce7c9e818d7b6d3b19200c896fcf42f5b4b

    • SHA512

      673a67e73f8d3a31403cee50234d3160afe3eda75f75935677f9da0e955e28e67d9265c1a23c80b0fab7bd1aaa85ece8e3bf1bf085e76d9cbbd498a34a77287e

    • SSDEEP

      98304:BjxkN1YiQ2DmsiJb0D2OG5Mbser0ZAY8pD1X0C:B161YitDZiJoZgAY8pDl0

    Score
    10/10
    dcratdefense_evasioninfostealerrattrojandiscovery

    • DcRat

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

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

      defense_evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Checks whether UAC is enabled

      defense_evasiontrojan
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
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