Overview

overview

10

Static

static

10

b39b2723e3...6N.exe

windows7-x64

10

b39b2723e3...6N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b39b2723e3217a332fcc41aad66fcae56939e5368d2abbdbff0c874b84aea9e6N.exe

  • Size

    952KB

  • Sample

    250116-qthzjatlar

  • MD5

    44166bd2a126a97a6db8049255377240

  • SHA1

    470b088d19c3f3395e313a49d7b6ef6527a40d42

  • SHA256

    b39b2723e3217a332fcc41aad66fcae56939e5368d2abbdbff0c874b84aea9e6

  • SHA512

    482e1fc386b985e82bbe477d8b21eeb50192d03a6fcaf91abf4ec8c464708d65bcdeb49b9cfbf86f468db74e273a78999207e75a66c0a527a2ae1a8db6ce3531

  • SSDEEP

    24576:W+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:x8/KfRTK

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      b39b2723e3217a332fcc41aad66fcae56939e5368d2abbdbff0c874b84aea9e6N.exe

    • Size

      952KB

    • MD5

      44166bd2a126a97a6db8049255377240

    • SHA1

      470b088d19c3f3395e313a49d7b6ef6527a40d42

    • SHA256

      b39b2723e3217a332fcc41aad66fcae56939e5368d2abbdbff0c874b84aea9e6

    • SHA512

      482e1fc386b985e82bbe477d8b21eeb50192d03a6fcaf91abf4ec8c464708d65bcdeb49b9cfbf86f468db74e273a78999207e75a66c0a527a2ae1a8db6ce3531

    • SSDEEP

      24576:W+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:x8/KfRTK

    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

    • 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

    • 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

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