Overview

overview

10

Static

static

10

4d9022605a...b5.exe

windows7-x64

10

4d9022605a...b5.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4d9022605a286834508c28ec5c9a0ee0ba83cb0e573003919fe190598875fdb5.exe

  • Size

    952KB

  • Sample

    241206-1y6lhawmgn

  • MD5

    82ededc8ebe36096a29aeb793260f6c6

  • SHA1

    9bc9ba0e92990015e1ee7d3175506cd850e40f08

  • SHA256

    4d9022605a286834508c28ec5c9a0ee0ba83cb0e573003919fe190598875fdb5

  • SHA512

    a94b65efa5a07af586071dad395e7694e30acb5a4ef6ff19f55f8191a11bfacd3c1cfd17e04077949091ace10e573033c4399aaa23264435780e34f081700120

  • SSDEEP

    24576:W+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXXl:x8/KfRTKv

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      4d9022605a286834508c28ec5c9a0ee0ba83cb0e573003919fe190598875fdb5.exe

    • Size

      952KB

    • MD5

      82ededc8ebe36096a29aeb793260f6c6

    • SHA1

      9bc9ba0e92990015e1ee7d3175506cd850e40f08

    • SHA256

      4d9022605a286834508c28ec5c9a0ee0ba83cb0e573003919fe190598875fdb5

    • SHA512

      a94b65efa5a07af586071dad395e7694e30acb5a4ef6ff19f55f8191a11bfacd3c1cfd17e04077949091ace10e573033c4399aaa23264435780e34f081700120

    • SSDEEP

      24576:W+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXXl:x8/KfRTKv

    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