Overview

overview

10

Static

static

10

a86128295c...48.exe

windows7-x64

10

a86128295c...48.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a86128295c56770cca66fc90ae4b45ee074c7748f0a61e76cecb50975d0a5d48

  • Size

    783KB

  • Sample

    250128-b7w1zssrcs

  • MD5

    3b3c2d80c5a454a147432307689450cd

  • SHA1

    6ae70ec700709b860d6c9a501f953e98b2b614e5

  • SHA256

    a86128295c56770cca66fc90ae4b45ee074c7748f0a61e76cecb50975d0a5d48

  • SHA512

    e1f626becf40260dc90559383e95eff8f8d4d2a447a41118b01a6a02002d98d0be2389f4c9030dbc3f4f8bab1d1ec4dc5daa31755b55c6d09d0c6f3f054443a0

  • SSDEEP

    12288:mqnOYxdAgpoNeF91rg5iFdr0yQ9gYx+EIpakCYJRU7Q9bWoFzqK:m+OQbpbgsFdAyQvzSqaq8q

Score
10/10
dcratdefense_evasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      a86128295c56770cca66fc90ae4b45ee074c7748f0a61e76cecb50975d0a5d48

    • Size

      783KB

    • MD5

      3b3c2d80c5a454a147432307689450cd

    • SHA1

      6ae70ec700709b860d6c9a501f953e98b2b614e5

    • SHA256

      a86128295c56770cca66fc90ae4b45ee074c7748f0a61e76cecb50975d0a5d48

    • SHA512

      e1f626becf40260dc90559383e95eff8f8d4d2a447a41118b01a6a02002d98d0be2389f4c9030dbc3f4f8bab1d1ec4dc5daa31755b55c6d09d0c6f3f054443a0

    • SSDEEP

      12288:mqnOYxdAgpoNeF91rg5iFdr0yQ9gYx+EIpakCYJRU7Q9bWoFzqK:m+OQbpbgsFdAyQvzSqaq8q

    Score
    10/10
    dcratdefense_evasioninfostealerpersistencerattrojan

    • 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

      defense_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

      defense_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