Overview

overview

10

Static

static

10

c65b29f3d0...9N.exe

windows7-x64

10

c65b29f3d0...9N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c65b29f3d0407563c17378ee29d9f854148165a86c4c1fbcc1c74f5d7af116e9N.exe

  • Size

    952KB

  • Sample

    241129-pxr6yazrgn

  • MD5

    02a7bc1d4669f2e528f9c2e548f96d40

  • SHA1

    bb71b64339412b7502a2bc1771fe651a3b970167

  • SHA256

    c65b29f3d0407563c17378ee29d9f854148165a86c4c1fbcc1c74f5d7af116e9

  • SHA512

    9c197f1d9559be91ff328a9309334708a47730cdad42a520b7453fb77bba0aa57122b3f9cf6960c3e7cf939911aba62d4f18c30d80cd9efb9563d6766351410e

  • SSDEEP

    24576:u+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:p8/KfRTK

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      c65b29f3d0407563c17378ee29d9f854148165a86c4c1fbcc1c74f5d7af116e9N.exe

    • Size

      952KB

    • MD5

      02a7bc1d4669f2e528f9c2e548f96d40

    • SHA1

      bb71b64339412b7502a2bc1771fe651a3b970167

    • SHA256

      c65b29f3d0407563c17378ee29d9f854148165a86c4c1fbcc1c74f5d7af116e9

    • SHA512

      9c197f1d9559be91ff328a9309334708a47730cdad42a520b7453fb77bba0aa57122b3f9cf6960c3e7cf939911aba62d4f18c30d80cd9efb9563d6766351410e

    • SSDEEP

      24576:u+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:p8/KfRTK

    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