Overview

overview

10

Static

static

10

HEUR-Backd...4b.exe

windows7-x64

10

HEUR-Backd...4b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    HEUR-Backdoor.MSIL.LightStone.gen-ea8525ed14b.exe

  • Size

    1.4MB

  • Sample

    230604-dlqyysbd7x

  • MD5

    86855a4c90ef303681ee3d2139033042

  • SHA1

    8492cdedf5f5a61c08582607c1bbede20c325020

  • SHA256

    ea8525ed14bdc8f98f18f97b86b2853749eb99f1a517b7dfed4257dae18a7ce9

  • SHA512

    a091565a282bb7bba6a3c23fbb198d9eb59cde9a9d8c2877eb25b690468c0696bc9ef45fd47e2c0930e2aee10b953b308305ea8f0e2729c385127c581be95d79

  • SSDEEP

    24576:q2G/nvxW3WuU7l19j0EF+b9ZEFMwHjM7pyscuEHvbp/lgN+4:qbA3Q2BZEHw7pWIU

Score
10/10
dcratinfostealerpersistencerat

Malware Config

Targets

    • Target

      HEUR-Backdoor.MSIL.LightStone.gen-ea8525ed14b.exe

    • Size

      1.4MB

    • MD5

      86855a4c90ef303681ee3d2139033042

    • SHA1

      8492cdedf5f5a61c08582607c1bbede20c325020

    • SHA256

      ea8525ed14bdc8f98f18f97b86b2853749eb99f1a517b7dfed4257dae18a7ce9

    • SHA512

      a091565a282bb7bba6a3c23fbb198d9eb59cde9a9d8c2877eb25b690468c0696bc9ef45fd47e2c0930e2aee10b953b308305ea8f0e2729c385127c581be95d79

    • SSDEEP

      24576:q2G/nvxW3WuU7l19j0EF+b9ZEFMwHjM7pyscuEHvbp/lgN+4:qbA3Q2BZEHw7pWIU

    Score
    10/10
    dcratinfostealerpersistencerat

    • DcRat

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

      ratinfostealerdcrat

    • 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

    • 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks