Overview

overview

10

Static

static

10

92d18c8505...3f.exe

windows7-x64

10

92d18c8505...3f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe

  • Size

    769KB

  • Sample

    250123-eggp6askhm

  • MD5

    e37ecdc4437e46a9e712edf5ac610e65

  • SHA1

    e5e93b92d37911f342f93c636ecb4954862b62dc

  • SHA256

    92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f

  • SHA512

    5941dc1676e3b0a5c9f4bee93bc9d542ed829a4f7263fecad6f870aa084d34ce0f9f16bb794832d4b67fb81fc76ed115ad05aa3692132750132298427034c04b

  • SSDEEP

    12288:7pTnTz9dJuydpYHA9VvNEJJMA+AppW3Ari4VVyZC0+1ctHNt8KF4AXDWZ6:7pTn5uy19V1WJMA+Ap3iE0n3c6

Score
10/10
dcratdiscoveryinfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe

    • Size

      769KB

    • MD5

      e37ecdc4437e46a9e712edf5ac610e65

    • SHA1

      e5e93b92d37911f342f93c636ecb4954862b62dc

    • SHA256

      92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f

    • SHA512

      5941dc1676e3b0a5c9f4bee93bc9d542ed829a4f7263fecad6f870aa084d34ce0f9f16bb794832d4b67fb81fc76ed115ad05aa3692132750132298427034c04b

    • SSDEEP

      12288:7pTnTz9dJuydpYHA9VvNEJJMA+AppW3Ari4VVyZC0+1ctHNt8KF4AXDWZ6:7pTn5uy19V1WJMA+Ap3iE0n3c6

    Score
    10/10
    dcratinfostealerpersistenceratspywarestealerdiscovery

    • 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

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

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