Overview

overview

10

Static

static

10

73b461a9d8...c0.exe

windows7-x64

10

73b461a9d8...c0.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    73b461a9d859f019ed4f0dda1e0cc86a36b826bde0f318e806503876056b41c0.exe

  • Size

    3.6MB

  • Sample

    250114-c7e8xavjav

  • MD5

    f2997dfb6f126670204c83344b678f0e

  • SHA1

    fb1a90117ff594cac3b2cebbbbd072674f246ce3

  • SHA256

    73b461a9d859f019ed4f0dda1e0cc86a36b826bde0f318e806503876056b41c0

  • SHA512

    20bd6c2e2aebf5e96f8d9497880538061f23ed8b925cf916749da16db6339a2dd2ff5166aa0c096e23f7654e5b2959d9af108cf5ccf68291cc80f8c7c2d235ad

  • SSDEEP

    98304:NzRppqmmRX+6fo6du/5P2nPNWNG5trztTgyz+65WzU:NzRppqVDqOnVWNG5bR+65WzU

Score
10/10
dcratneshtadiscoveryexecutioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      73b461a9d859f019ed4f0dda1e0cc86a36b826bde0f318e806503876056b41c0.exe

    • Size

      3.6MB

    • MD5

      f2997dfb6f126670204c83344b678f0e

    • SHA1

      fb1a90117ff594cac3b2cebbbbd072674f246ce3

    • SHA256

      73b461a9d859f019ed4f0dda1e0cc86a36b826bde0f318e806503876056b41c0

    • SHA512

      20bd6c2e2aebf5e96f8d9497880538061f23ed8b925cf916749da16db6339a2dd2ff5166aa0c096e23f7654e5b2959d9af108cf5ccf68291cc80f8c7c2d235ad

    • SSDEEP

      98304:NzRppqmmRX+6fo6du/5P2nPNWNG5trztTgyz+65WzU:NzRppqVDqOnVWNG5bR+65WzU

    Score
    10/10
    dcratneshtadiscoveryexecutioninfostealerpersistenceratspywarestealer

    • DcRat

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

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • Detect Neshta payload

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

      persistencespywareneshta

    • Neshta family

      neshta

    • Process spawned unexpected child process

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

      persistence

    • Reads user/profile data of web browsers

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

      spywarestealer
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
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

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks