Overview

overview

10

Static

static

10

67f998093c...26.exe

windows7-x64

10

67f998093c...26.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    67f998093c11d8a104aef7a92a2d5b26.exe

  • Size

    2.2MB

  • Sample

    250111-s4rerssnet

  • MD5

    67f998093c11d8a104aef7a92a2d5b26

  • SHA1

    cea4392bfb620e2d5b303c7f39fe68a30080a771

  • SHA256

    f08bab568e1877365870d1d321bb77c1e6e36f5f91b29e73c7c33d13a01c31d1

  • SHA512

    e3572eaf810f95944206728a83c822244afd079f59cef2911e11dddd85216a09663edbd8041fe5281c0ca9a6182bc5b70d77cbcc403baccbfbdc1d9c6a137e92

  • SSDEEP

    49152:AsSHlG56vO0T3/Nh/ptuw/C3TqGaDxr1NcWTMUvif:ALlK6d3/Nh/bV/Oq3Dxp2RUG

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      67f998093c11d8a104aef7a92a2d5b26.exe

    • Size

      2.2MB

    • MD5

      67f998093c11d8a104aef7a92a2d5b26

    • SHA1

      cea4392bfb620e2d5b303c7f39fe68a30080a771

    • SHA256

      f08bab568e1877365870d1d321bb77c1e6e36f5f91b29e73c7c33d13a01c31d1

    • SHA512

      e3572eaf810f95944206728a83c822244afd079f59cef2911e11dddd85216a09663edbd8041fe5281c0ca9a6182bc5b70d77cbcc403baccbfbdc1d9c6a137e92

    • SSDEEP

      49152:AsSHlG56vO0T3/Nh/ptuw/C3TqGaDxr1NcWTMUvif:ALlK6d3/Nh/bV/Oq3Dxp2RUG

    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

    • 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

      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