Overview

overview

10

Static

static

10

aa8d4ba970...b4.exe

windows7-x64

10

aa8d4ba970...b4.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    aa8d4ba970e55df587a86bc1aac676b4.exe

  • Size

    2.9MB

  • Sample

    231230-bzkb8aebc6

  • MD5

    aa8d4ba970e55df587a86bc1aac676b4

  • SHA1

    cbc5e05b31a847863c089ecf8dac413c9de6a489

  • SHA256

    a0c3348c11bf5e4f17b6a94de802de80417cdf71f5f9e5ae53d24302fe87a072

  • SHA512

    92def05d1f0832b051097af731e9437128201846deec851bbfa1b440d6e5b2c713d60c2bdbff5257b9ac2e10e32915439745bc9020c0e93eb0e77786759cfdd2

  • SSDEEP

    49152:zbA3QZ9IvjVSu/g5hWGZ6lFjHNIQkJ5eXUg+sxaHwImDauliZ6DffU:zbLurVYZ6lltIbE1+iaQIsaulpD0

Score
10/10
dcratevasioninfostealerpersistenceratspywarestealertrojan

Malware Config

Targets

    • Target

      aa8d4ba970e55df587a86bc1aac676b4.exe

    • Size

      2.9MB

    • MD5

      aa8d4ba970e55df587a86bc1aac676b4

    • SHA1

      cbc5e05b31a847863c089ecf8dac413c9de6a489

    • SHA256

      a0c3348c11bf5e4f17b6a94de802de80417cdf71f5f9e5ae53d24302fe87a072

    • SHA512

      92def05d1f0832b051097af731e9437128201846deec851bbfa1b440d6e5b2c713d60c2bdbff5257b9ac2e10e32915439745bc9020c0e93eb0e77786759cfdd2

    • SSDEEP

      49152:zbA3QZ9IvjVSu/g5hWGZ6lFjHNIQkJ5eXUg+sxaHwImDauliZ6DffU:zbLurVYZ6lltIbE1+iaQIsaulpD0

    Score
    10/10
    dcratevasioninfostealerpersistencerattrojanspywarestealer

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

      ratinfostealerdcrat

    • 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

    • Disables Task Manager via registry modification

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

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

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

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

5
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks