Overview

overview

10

Static

static

10

71be20190e...a6.exe

windows7-x64

10

71be20190e...a6.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    71be20190eec5f61710bdd083137d72791c5d1bf47b06dc9f7748e297ad945a6

  • Size

    783KB

  • Sample

    250113-by4z8s1rhr

  • MD5

    cf1bfee7761c04cb3d6bac55fd17f8e9

  • SHA1

    626a9ced8310839072e9025f576060792efcdaae

  • SHA256

    71be20190eec5f61710bdd083137d72791c5d1bf47b06dc9f7748e297ad945a6

  • SHA512

    db31cca344fa6b94591b55ab6aa918058f3165f11fe8dacde5f9513e8d8057714444ceea9d25db95ac5e112309ee16874ed6957569b9a9c8420c9cc7d72dc102

  • SSDEEP

    12288:GqnOYxdAgpoNeF91rg5iFdr0yQ9gYx+EIpakCYJRU7Q9bWoFzqK:G+OQbpbgsFdAyQvzSqaq8q

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      71be20190eec5f61710bdd083137d72791c5d1bf47b06dc9f7748e297ad945a6

    • Size

      783KB

    • MD5

      cf1bfee7761c04cb3d6bac55fd17f8e9

    • SHA1

      626a9ced8310839072e9025f576060792efcdaae

    • SHA256

      71be20190eec5f61710bdd083137d72791c5d1bf47b06dc9f7748e297ad945a6

    • SHA512

      db31cca344fa6b94591b55ab6aa918058f3165f11fe8dacde5f9513e8d8057714444ceea9d25db95ac5e112309ee16874ed6957569b9a9c8420c9cc7d72dc102

    • SSDEEP

      12288:GqnOYxdAgpoNeF91rg5iFdr0yQ9gYx+EIpakCYJRU7Q9bWoFzqK:G+OQbpbgsFdAyQvzSqaq8q

    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

    • 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

    • Drops file in System32 directory

    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

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

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

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

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

3
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks