Overview

overview

10

Static

static

10

74b7f7ab11...e3.exe

windows7-x64

10

74b7f7ab11...e3.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    812ac1ea0b1d66a93d0beca70cc28cbe.bin

  • Size

    1.8MB

  • Sample

    250113-btsfmsynfv

  • MD5

    4ca23b1e3b85d74634fbc9e0d706d22b

  • SHA1

    04b9da21db40a06713721dc502ab36337c55eb88

  • SHA256

    8892a4ce442b8651e770db53457bcf68eba1d8847fe638af004683845e103c3d

  • SHA512

    a702d0eac36cc5cd4df63533135c5d0b81895d37281654f32cdd21cfdbe28c9782350e6ad96c1245324b9cad32cd79073aaecf0e5a336020f1d45ace5bc61888

  • SSDEEP

    49152:QqSoO+l1d+dIR4c4BUaAC6ndWAdIGUL2mzTGw4d:QjD+l1IWRb4ZxYW6IGedu

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      74b7f7ab11694433db9e6f10265127cb9ab239983f0442d6aea1a475713018e3.exe

    • Size

      2.2MB

    • MD5

      812ac1ea0b1d66a93d0beca70cc28cbe

    • SHA1

      c5cff3dc9a2503521de74a7d4cda2f678f5bb575

    • SHA256

      74b7f7ab11694433db9e6f10265127cb9ab239983f0442d6aea1a475713018e3

    • SHA512

      01acc3b99130f0d263917e4e362caf25841b21e3a9a82ce40004db96239ebcc8762a57ebad020ed704213596a100d060475cd9fd61c5bd4df9a35ff14d4cc6f6

    • SSDEEP

      49152:K31tZUmbFNH1wLJDPqTo9lIS/MXU2F4/1l5eQ7K6:KltZUE6NDyTo9lv2F+VvK6

    Score
    10/10
    dcratevasioninfostealerpersistencerattrojan

    • 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.

    • UAC bypass

      evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan
    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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks