Overview

overview

10

Static

static

10

9d6543c22a...25.exe

windows7-x64

10

9d6543c22a...25.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325

  • Size

    952KB

  • Sample

    250125-el34ysvmay

  • MD5

    fa2fda3605fcdbaf69212aa3edb9f0f4

  • SHA1

    f44fde95e3d9915f65fab24f48dcd4eb505a26da

  • SHA256

    9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325

  • SHA512

    019536005222cf19bdcc3c018993e3be36b1149f3b7a27938f65194b59aed6eba256e5949a119c7b90c7fe441b2201b7093e19066821875d81051e1869fccfdd

  • SSDEEP

    24576:2+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:R8/KfRTK

Score
10/10
dcratdefense_evasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325

    • Size

      952KB

    • MD5

      fa2fda3605fcdbaf69212aa3edb9f0f4

    • SHA1

      f44fde95e3d9915f65fab24f48dcd4eb505a26da

    • SHA256

      9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325

    • SHA512

      019536005222cf19bdcc3c018993e3be36b1149f3b7a27938f65194b59aed6eba256e5949a119c7b90c7fe441b2201b7093e19066821875d81051e1869fccfdd

    • SSDEEP

      24576:2+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:R8/KfRTK

    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

    • 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

      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

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