Overview

overview

10

Static

static

10

eb829087dc...a1.exe

windows7-x64

10

eb829087dc...a1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    eb829087dc0c18540bb133b5f74c6092c6e9c6e0da94f0da47ff28fa6d404ea1

  • Size

    2.2MB

  • Sample

    250124-md8y8svmem

  • MD5

    9ca4c55fca9566c4fa4190afc1e0f72d

  • SHA1

    6a5648d383c1e9fa49483c1a5c33fd4188dc2cae

  • SHA256

    eb829087dc0c18540bb133b5f74c6092c6e9c6e0da94f0da47ff28fa6d404ea1

  • SHA512

    aa0be340671557983bdd234aa2ce3781bbdf484a6de9f31f39139757d67dd9be45285a121d4e250b79da16fb5f80d2f98b4d9dbd661ffeda593c33514eb1c1b4

  • SSDEEP

    49152:ssSHlG56vO0T3/Nh/ptuw/C3TqGaDxr1NcWTMUvif:sLlK6d3/Nh/bV/Oq3Dxp2RUG

Score
10/10
dcratdefense_evasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      eb829087dc0c18540bb133b5f74c6092c6e9c6e0da94f0da47ff28fa6d404ea1

    • Size

      2.2MB

    • MD5

      9ca4c55fca9566c4fa4190afc1e0f72d

    • SHA1

      6a5648d383c1e9fa49483c1a5c33fd4188dc2cae

    • SHA256

      eb829087dc0c18540bb133b5f74c6092c6e9c6e0da94f0da47ff28fa6d404ea1

    • SHA512

      aa0be340671557983bdd234aa2ce3781bbdf484a6de9f31f39139757d67dd9be45285a121d4e250b79da16fb5f80d2f98b4d9dbd661ffeda593c33514eb1c1b4

    • SSDEEP

      49152:ssSHlG56vO0T3/Nh/ptuw/C3TqGaDxr1NcWTMUvif:sLlK6d3/Nh/bV/Oq3Dxp2RUG

    Score
    10/10
    dcratdefense_evasioninfostealerpersistencerattrojan

    • 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

      defense_evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Drops file in Drivers directory

    • 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

      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

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

Exfiltration

Impact

Tasks