Overview

overview

10

Static

static

3

352bb05902...e9.exe

windows7-x64

10

352bb05902...e9.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    352bb05902750f30bd3bc84600d65cad64eeae01c8e794ddb45a0d8453f691e9.exe

  • Size

    427KB

  • Sample

    241110-wdrjmasbmc

  • MD5

    7f846323072bb436b75c33cd7fe40bfd

  • SHA1

    391872ddfa1aeb8451af41e40d8341453112e601

  • SHA256

    5ab7d1d71590cd6e8e280f575c34d589a85bfcec5e469d2c87eb2ee1d844e170

  • SHA512

    4a795ae6e26332b73d1b5f88e67eb89ede1f55205fa86417d374a1b94fc81ddb6bb02dcb222bfb4367ffffbb666bbf28d389b4298b2c649aed7b877b96a12ec1

  • SSDEEP

    12288:mDLfHXFL+Kfcos8Us9s4R1d4j7nwlmyAgn/fV:mtyUAQnR+7wlmy7/t

Score
10/10
dcratdiscoveryinfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      352bb05902750f30bd3bc84600d65cad64eeae01c8e794ddb45a0d8453f691e9.exe

    • Size

      427KB

    • MD5

      7f846323072bb436b75c33cd7fe40bfd

    • SHA1

      391872ddfa1aeb8451af41e40d8341453112e601

    • SHA256

      5ab7d1d71590cd6e8e280f575c34d589a85bfcec5e469d2c87eb2ee1d844e170

    • SHA512

      4a795ae6e26332b73d1b5f88e67eb89ede1f55205fa86417d374a1b94fc81ddb6bb02dcb222bfb4367ffffbb666bbf28d389b4298b2c649aed7b877b96a12ec1

    • SSDEEP

      12288:mDLfHXFL+Kfcos8Us9s4R1d4j7nwlmyAgn/fV:mtyUAQnR+7wlmy7/t

    Score
    10/10
    dcratdiscoveryinfostealerpersistenceratspywarestealer

    • 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.

    • DCRat payload

      rat

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • 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

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

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks