Overview

overview

10

Static

static

10

d9aef85fc0...cf.exe

windows7-x64

10

d9aef85fc0...cf.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    d9aef85fc0e89a01c741f919fd9740bc71a970777746338d7c689bb69a5b08cf

  • Size

    2.4MB

  • Sample

    241124-ejryxayqem

  • MD5

    16be4b35fbc59aa471fff4ab77f53c5e

  • SHA1

    5d31d96f0562309fc24294ecfdb3d2a26b238764

  • SHA256

    d9aef85fc0e89a01c741f919fd9740bc71a970777746338d7c689bb69a5b08cf

  • SHA512

    29c902990c748f34c260a08811f1f24956bbc62b7135e58095753ef1f9ad5a094bc560a3dc7aaadb6295eb518b6ad4d645d4775cf11b9a87fd868dc138cf9b45

  • SSDEEP

    49152:pCZ/7MmTJP/uNiZ4qBpWVPW6dKiXGRhuknLwFPy4Eiw7m:aDMmTJXui4qBpWLZgukLwkiA

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      d9aef85fc0e89a01c741f919fd9740bc71a970777746338d7c689bb69a5b08cf

    • Size

      2.4MB

    • MD5

      16be4b35fbc59aa471fff4ab77f53c5e

    • SHA1

      5d31d96f0562309fc24294ecfdb3d2a26b238764

    • SHA256

      d9aef85fc0e89a01c741f919fd9740bc71a970777746338d7c689bb69a5b08cf

    • SHA512

      29c902990c748f34c260a08811f1f24956bbc62b7135e58095753ef1f9ad5a094bc560a3dc7aaadb6295eb518b6ad4d645d4775cf11b9a87fd868dc138cf9b45

    • SSDEEP

      49152:pCZ/7MmTJP/uNiZ4qBpWVPW6dKiXGRhuknLwFPy4Eiw7m:aDMmTJXui4qBpWLZgukLwkiA

    Score
    10/10
    dcratevasioninfostealerpersistencerattrojan

    • 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.

    • UAC bypass

      evasiontrojan

    • 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

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

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

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

4
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks