Overview

overview

10

Static

static

10

77FFFEE187...3F.exe

windows7-x64

10

77FFFEE187...3F.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    77FFFEE187FABB45FFC7219D421EA83F.exe

  • Size

    1.4MB

  • Sample

    241026-d5w93swqgr

  • MD5

    77fffee187fabb45ffc7219d421ea83f

  • SHA1

    3f21e5a79d674131678ac5de8eaf30bbfcbb177c

  • SHA256

    272d4708729e16b629b6ec2c3c04317f6579c2c8f24d171be0d9469dbbce4e26

  • SHA512

    3c27ed77b4e5c522804b48b94b70071bc07b4227ed3f5018d45160cb192136296f75a84af770caf72c797d2ea7fa36c8d897f2d68199f0fe0123c94781452b1f

  • SSDEEP

    24576:KufUOExyABqHwzAsZg7ySXHzf9gUQ4zWp2Wn7b5kXxK:K3zBqATEzf9gUQPn7b5kXx

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      77FFFEE187FABB45FFC7219D421EA83F.exe

    • Size

      1.4MB

    • MD5

      77fffee187fabb45ffc7219d421ea83f

    • SHA1

      3f21e5a79d674131678ac5de8eaf30bbfcbb177c

    • SHA256

      272d4708729e16b629b6ec2c3c04317f6579c2c8f24d171be0d9469dbbce4e26

    • SHA512

      3c27ed77b4e5c522804b48b94b70071bc07b4227ed3f5018d45160cb192136296f75a84af770caf72c797d2ea7fa36c8d897f2d68199f0fe0123c94781452b1f

    • SSDEEP

      24576:KufUOExyABqHwzAsZg7ySXHzf9gUQ4zWp2Wn7b5kXxK:K3zBqATEzf9gUQPn7b5kXx

    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
    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