Overview

overview

10

Static

static

10

73eaa27083...15.exe

windows7-x64

10

73eaa27083...15.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    73eaa2708311d2ac31d2a440146fccf8c44d4cf3f2413620aaad7ff096a8fe15.exe

  • Size

    952KB

  • Sample

    241204-wq1caszker

  • MD5

    dc100730c11f4a70e5324f4a0a0358f2

  • SHA1

    561a80a6284540fe9f3c30a2495f51c9e1077ab0

  • SHA256

    73eaa2708311d2ac31d2a440146fccf8c44d4cf3f2413620aaad7ff096a8fe15

  • SHA512

    d8f497520b432fa8ebd07d39a8b922b38f1dc9a954ad9646ec46c456e4476a1e856826497a23525a33690ce464796c65db9714a86e9d6af922aecc8ee85772e6

  • SSDEEP

    24576:e+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXXn:Z8/KfRTKN

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      73eaa2708311d2ac31d2a440146fccf8c44d4cf3f2413620aaad7ff096a8fe15.exe

    • Size

      952KB

    • MD5

      dc100730c11f4a70e5324f4a0a0358f2

    • SHA1

      561a80a6284540fe9f3c30a2495f51c9e1077ab0

    • SHA256

      73eaa2708311d2ac31d2a440146fccf8c44d4cf3f2413620aaad7ff096a8fe15

    • SHA512

      d8f497520b432fa8ebd07d39a8b922b38f1dc9a954ad9646ec46c456e4476a1e856826497a23525a33690ce464796c65db9714a86e9d6af922aecc8ee85772e6

    • SSDEEP

      24576:e+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXXn:Z8/KfRTKN

    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

    • 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

    • 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

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