Overview

overview

10

Static

static

10

3aa1bbd17d...5b.exe

windows7-x64

10

3aa1bbd17d...5b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3aa1bbd17d68b0b67b7423f1fe09b05b.exe

  • Size

    2.2MB

  • Sample

    241214-l6xw1aylcz

  • MD5

    3aa1bbd17d68b0b67b7423f1fe09b05b

  • SHA1

    61c43b8f31a51d772fd39d5caa87699d74971a43

  • SHA256

    7362f82084bcdf47b0927674ad678f66214e8d4f2783a0b9338ee4eb773c3474

  • SHA512

    7ae82411565104b15cc0de4cc8315d93301befbb28b1e36e3c50d46c8ba9fb1ff8eb361e12cd9d32771e2a5ecbee9b026aca0105473a9fe5a877fc2744b32014

  • SSDEEP

    49152:mx4QdTmxnMJUh+pDY92IXc3Mx+HqXQJc2cv1TDlH:QdPpDYbNiIP2cvxZH

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      3aa1bbd17d68b0b67b7423f1fe09b05b.exe

    • Size

      2.2MB

    • MD5

      3aa1bbd17d68b0b67b7423f1fe09b05b

    • SHA1

      61c43b8f31a51d772fd39d5caa87699d74971a43

    • SHA256

      7362f82084bcdf47b0927674ad678f66214e8d4f2783a0b9338ee4eb773c3474

    • SHA512

      7ae82411565104b15cc0de4cc8315d93301befbb28b1e36e3c50d46c8ba9fb1ff8eb361e12cd9d32771e2a5ecbee9b026aca0105473a9fe5a877fc2744b32014

    • SSDEEP

      49152:mx4QdTmxnMJUh+pDY92IXc3Mx+HqXQJc2cv1TDlH:QdPpDYbNiIP2cvxZH

    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
    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