Overview

overview

10

Static

static

10

75e9a0ab3a...35.exe

windows7-x64

10

75e9a0ab3a...35.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    75e9a0ab3a75f42cdae23e971e2f34f447aeed1bc9b0adf11d47cd2dc04a0835.exe

  • Size

    2.2MB

  • Sample

    250113-cw9clstpap

  • MD5

    8c76e7dcc8ae18ed5107083568de5c15

  • SHA1

    b229653c55b499475dc90fd7f517dad0ddf83afa

  • SHA256

    75e9a0ab3a75f42cdae23e971e2f34f447aeed1bc9b0adf11d47cd2dc04a0835

  • SHA512

    bb1d47f24fe11a598c85ad3204bf272be66763d20b880996f68f06b0623aa7d823af44a60722977e539f8a80fab1bd9fd8866da0ffc72251d91aa38603ed12bb

  • SSDEEP

    49152:a31tZUmbFNH1wLJDPqTo9lIS/MXU2F4/1l5eQ7K6:altZUE6NDyTo9lv2F+VvK6

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      75e9a0ab3a75f42cdae23e971e2f34f447aeed1bc9b0adf11d47cd2dc04a0835.exe

    • Size

      2.2MB

    • MD5

      8c76e7dcc8ae18ed5107083568de5c15

    • SHA1

      b229653c55b499475dc90fd7f517dad0ddf83afa

    • SHA256

      75e9a0ab3a75f42cdae23e971e2f34f447aeed1bc9b0adf11d47cd2dc04a0835

    • SHA512

      bb1d47f24fe11a598c85ad3204bf272be66763d20b880996f68f06b0623aa7d823af44a60722977e539f8a80fab1bd9fd8866da0ffc72251d91aa38603ed12bb

    • SSDEEP

      49152:a31tZUmbFNH1wLJDPqTo9lIS/MXU2F4/1l5eQ7K6:altZUE6NDyTo9lv2F+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