Overview

overview

10

Static

static

10

21241ffa8c...f3.exe

windows7-x64

10

21241ffa8c...f3.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    21241ffa8c021cc337901145fcdaae68713abb75c22a74e39001fe1da15f35f3.exe

  • Size

    2.6MB

  • Sample

    240728-bev8zssape

  • MD5

    45777274a1f089648085d8f60a401ec3

  • SHA1

    7edbcea87c3cd17890ad5ad9bb48b96f18ca45fe

  • SHA256

    21241ffa8c021cc337901145fcdaae68713abb75c22a74e39001fe1da15f35f3

  • SHA512

    f8b952594f07a29a782c35e4a412e50dd8d5f532a1598f3fcf3e03ea0d7773835c0848b745c8c8026b77d718e2112056cfc350359224696686cc36edf3223eed

  • SSDEEP

    49152:ubA3jtXf3wo6e1Sp/y+susVvipA7yQlcALZ/jZvaJOBoyI3l04EaJ:ubW3H51Sp+usgK7lcAZjUOKyIV07aJ

Score
10/10
dcratdiscoveryinfostealerpersistencerat

Malware Config

Targets

    • Target

      21241ffa8c021cc337901145fcdaae68713abb75c22a74e39001fe1da15f35f3.exe

    • Size

      2.6MB

    • MD5

      45777274a1f089648085d8f60a401ec3

    • SHA1

      7edbcea87c3cd17890ad5ad9bb48b96f18ca45fe

    • SHA256

      21241ffa8c021cc337901145fcdaae68713abb75c22a74e39001fe1da15f35f3

    • SHA512

      f8b952594f07a29a782c35e4a412e50dd8d5f532a1598f3fcf3e03ea0d7773835c0848b745c8c8026b77d718e2112056cfc350359224696686cc36edf3223eed

    • SSDEEP

      49152:ubA3jtXf3wo6e1Sp/y+susVvipA7yQlcALZ/jZvaJOBoyI3l04EaJ:ubW3H51Sp+usgK7lcAZjUOKyIV07aJ

    Score
    10/10
    dcratdiscoveryinfostealerpersistencerat

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

      ratinfostealerdcrat

    • Modifies WinLogon for persistence

      persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

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

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks