Overview

overview

10

Static

static

10

26e4874d6c...c0.exe

windows7-x64

10

26e4874d6c...c0.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    26e4874d6cade038fd82d89d732abe0eb6f26d6e0a5e5e24af8d36000f9abfc0.exe

  • Size

    2.2MB

  • Sample

    250201-3zj51axrek

  • MD5

    baad2dc104aaba3159da075a87cb606e

  • SHA1

    a3346f43df91c6df1cec3b048a14246d6e65bc46

  • SHA256

    26e4874d6cade038fd82d89d732abe0eb6f26d6e0a5e5e24af8d36000f9abfc0

  • SHA512

    4d629a023232b64db7489f2cba745466bf07dbf2813492c603f8594695fd187edff0002d9aad09ccae051a4e00c105c0094c4a37483220ce1509aa9e9d967475

  • SSDEEP

    49152:ssSHlG56vO0T3/Nh/ptuw/C3TqGaDxr1NcWTMUvifq:sLlK6d3/Nh/bV/Oq3Dxp2RUGq

Score
10/10
dcratdefense_evasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      26e4874d6cade038fd82d89d732abe0eb6f26d6e0a5e5e24af8d36000f9abfc0.exe

    • Size

      2.2MB

    • MD5

      baad2dc104aaba3159da075a87cb606e

    • SHA1

      a3346f43df91c6df1cec3b048a14246d6e65bc46

    • SHA256

      26e4874d6cade038fd82d89d732abe0eb6f26d6e0a5e5e24af8d36000f9abfc0

    • SHA512

      4d629a023232b64db7489f2cba745466bf07dbf2813492c603f8594695fd187edff0002d9aad09ccae051a4e00c105c0094c4a37483220ce1509aa9e9d967475

    • SSDEEP

      49152:ssSHlG56vO0T3/Nh/ptuw/C3TqGaDxr1NcWTMUvifq:sLlK6d3/Nh/bV/Oq3Dxp2RUGq

    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

    • Drops file in Drivers directory

    • 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
    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