Overview

overview

10

Static

static

10

3d454a64e7...d0.exe

windows7-x64

10

3d454a64e7...d0.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3d454a64e7f14ab734752a9414f8cbd0.exe

  • Size

    2.5MB

  • Sample

    230119-en4s9sbg2z

  • MD5

    3d454a64e7f14ab734752a9414f8cbd0

  • SHA1

    a239dccbba74d4d17fae19552e122043f9501b2d

  • SHA256

    286acc4048494eecfb642fa7c95f459551c0fa3f7d2d117c8792cb6a1b3ab33d

  • SHA512

    4cfb9e4005fd18c3d9b0805c64fd34627c7090e8945fd7aa8fc0ba91babe6840a660245547b8971467416c629ad28e4362298520dbe9efdb734c310ff3ed0f77

  • SSDEEP

    49152:iSg8kOqBMdDhtQM4I+MkmJm9LcBwQYdXQ4J:9fkOqGhhtn9+nmJm9LcBCXvJ

Score
10/10
dcratinfostealerpersistencerat

Malware Config

Targets

    • Target

      3d454a64e7f14ab734752a9414f8cbd0.exe

    • Size

      2.5MB

    • MD5

      3d454a64e7f14ab734752a9414f8cbd0

    • SHA1

      a239dccbba74d4d17fae19552e122043f9501b2d

    • SHA256

      286acc4048494eecfb642fa7c95f459551c0fa3f7d2d117c8792cb6a1b3ab33d

    • SHA512

      4cfb9e4005fd18c3d9b0805c64fd34627c7090e8945fd7aa8fc0ba91babe6840a660245547b8971467416c629ad28e4362298520dbe9efdb734c310ff3ed0f77

    • SSDEEP

      49152:iSg8kOqBMdDhtQM4I+MkmJm9LcBwQYdXQ4J:9fkOqGhhtn9+nmJm9LcBCXvJ

    Score
    10/10
    dcratinfostealerpersistencerat

    • DcRat

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

      ratinfostealerdcrat

    • 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

    • Executes dropped EXE

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks