Overview

overview

10

Static

static

10

5beb95e9c5...3N.exe

windows7-x64

10

5beb95e9c5...3N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5beb95e9c52536e5deb1099ee375559c4e46ff41f73e99af2f9367dd99f290f3N.exe

  • Size

    952KB

  • Sample

    241216-cn99yayme1

  • MD5

    723431372f19da7e4dab8fbd433ccca0

  • SHA1

    b9a8822d273051796975d7238980729376b4cd50

  • SHA256

    5beb95e9c52536e5deb1099ee375559c4e46ff41f73e99af2f9367dd99f290f3

  • SHA512

    26777d5f22d2a5ac073d3b3ae3333a329b12801a9b11dc0cbe629d4ca9c2e4d88f9286dde6fa1826afce3e6b535a560873b1835fb6bb311c8280d1527cbc40f8

  • SSDEEP

    24576:++O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:58/KfRTK

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      5beb95e9c52536e5deb1099ee375559c4e46ff41f73e99af2f9367dd99f290f3N.exe

    • Size

      952KB

    • MD5

      723431372f19da7e4dab8fbd433ccca0

    • SHA1

      b9a8822d273051796975d7238980729376b4cd50

    • SHA256

      5beb95e9c52536e5deb1099ee375559c4e46ff41f73e99af2f9367dd99f290f3

    • SHA512

      26777d5f22d2a5ac073d3b3ae3333a329b12801a9b11dc0cbe629d4ca9c2e4d88f9286dde6fa1826afce3e6b535a560873b1835fb6bb311c8280d1527cbc40f8

    • SSDEEP

      24576:++O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:58/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