dcrat | 0ba951d1a97c8f4e8d64870f98ef777b11d3f49a1cd195482e3575361dd7346d | Triage

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Overview

overview

Static

static

a301f1d7fe...22.exe

windows7-x64

a301f1d7fe...22.exe

windows10-2004-x64

Sharing

General

Target

a301f1d7fe80574cc4888e1477cf5a22.exe
Size

1.7MB
Sample

230903-cpsfhsgd34
MD5

a301f1d7fe80574cc4888e1477cf5a22
SHA1

a2b43366cb4cb30a4d2c5bc4cc29dafecb42455c
SHA256

0ba951d1a97c8f4e8d64870f98ef777b11d3f49a1cd195482e3575361dd7346d
SHA512

2c5577687029660af4e70a064f93ae6ac7af074ba0f04c8783fa1797eb1801aeda1d6c711f8a3929f5d30d49df07850fb31b1db4b4cf233bb9a2b80905e25832
SSDEEP

24576:P2G/nvxW3Wz0XaV306S/0M/W5DyaCwvvTYdydYsXb30FTMsDQqE6jLGPbEYbF:PbA3dX83lS/Ve5D5vkrMb30DD7GP3

Score

10^/10

dcrat evasion infostealer persistence rat

Static task

static1

3 signatures

Behavioral task

behavioral1

Sample

a301f1d7fe80574cc4888e1477cf5a22.exe

Resource

win7-20230831-en

dcrat evasion infostealer persistence rat

windows7-x64

17 signatures

150 seconds

Behavioral task

behavioral2

Sample

a301f1d7fe80574cc4888e1477cf5a22.exe

Resource

win10v2004-20230831-en

dcrat evasion infostealer persistence rat

windows10-2004-x64

17 signatures

150 seconds

Malware Config

Targets

- Target
  
  a301f1d7fe80574cc4888e1477cf5a22.exe
- Size
  
  1.7MB
- MD5
  
  a301f1d7fe80574cc4888e1477cf5a22
- SHA1
  
  a2b43366cb4cb30a4d2c5bc4cc29dafecb42455c
- SHA256
  
  0ba951d1a97c8f4e8d64870f98ef777b11d3f49a1cd195482e3575361dd7346d
- SHA512
  
  2c5577687029660af4e70a064f93ae6ac7af074ba0f04c8783fa1797eb1801aeda1d6c711f8a3929f5d30d49df07850fb31b1db4b4cf233bb9a2b80905e25832
- SSDEEP
  
  24576:P2G/nvxW3Wz0XaV306S/0M/W5DyaCwvvTYdydYsXb30FTMsDQqE6jLGPbEYbF:PbA3dX83lS/Ve5D5vkrMb30DD7GP3
Score

10^/10

dcrat evasion infostealer persistence rat
- DcRat
  DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
  rat infostealer 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
  Detects payload of DCRat, commonly dropped by NSIS installers.
  rat
- Disables Task Manager via registry modification
  evasion
- 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
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Scheduled Task/Job

Defense Evasion

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

dcratevasioninfostealerpersistencerat

behavioral2

dcratevasioninfostealerpersistencerat

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