Overview

overview

10

Static

static

10

f62010b7a1...10.exe

windows7-x64

10

f62010b7a1...10.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f62010b7a1b10bb8cc3bcdfa7e4c96e4acc5e792d670916e0fd7372288a28510.exe

  • Size

    2.2MB

  • Sample

    250112-d3z8yswran

  • MD5

    7fb943a550881e7c59acdbba1164cbfd

  • SHA1

    ed5bb95d080cbcc5fafaaa0949fdcdfaece4dabe

  • SHA256

    f62010b7a1b10bb8cc3bcdfa7e4c96e4acc5e792d670916e0fd7372288a28510

  • SHA512

    a4b7e40e07f1d5b24fd2bec828c433d984087ee22478f11da9a2ab4bfb42c3c4609e3d24ba19e8fd0239bfffa532c6e4526d6ff9eb7e3a3d1788cb3e5f6e66fc

  • SSDEEP

    49152:K31tZUmbFNH1wLJDPqTo9lIS/MXU2F4/1l5eQ7K6:KltZUE6NDyTo9lv2F+VvK6

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      f62010b7a1b10bb8cc3bcdfa7e4c96e4acc5e792d670916e0fd7372288a28510.exe

    • Size

      2.2MB

    • MD5

      7fb943a550881e7c59acdbba1164cbfd

    • SHA1

      ed5bb95d080cbcc5fafaaa0949fdcdfaece4dabe

    • SHA256

      f62010b7a1b10bb8cc3bcdfa7e4c96e4acc5e792d670916e0fd7372288a28510

    • SHA512

      a4b7e40e07f1d5b24fd2bec828c433d984087ee22478f11da9a2ab4bfb42c3c4609e3d24ba19e8fd0239bfffa532c6e4526d6ff9eb7e3a3d1788cb3e5f6e66fc

    • SSDEEP

      49152:K31tZUmbFNH1wLJDPqTo9lIS/MXU2F4/1l5eQ7K6:KltZUE6NDyTo9lv2F+VvK6

    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