General

  • Target

    2a5d4895e98e443d4a121f3c22dae87386341c63f739523c25c5ab5f420a480dN.exe

  • Size

    1.7MB

  • Sample

    250124-wam22azmat

  • MD5

    66eded8b72e993eef8ec0b1b19944cc0

  • SHA1

    21b2295f1f9bd380dd114ff5a5c931b281b1f74c

  • SHA256

    2a5d4895e98e443d4a121f3c22dae87386341c63f739523c25c5ab5f420a480d

  • SHA512

    da0079636800e3b463582f90fe68daf8edfa3dd7a5b2837844bd4009607e6b98e6d134ddb92c2f91ebafc251636840e8ab6f5a4fdb87d716a40ca111a84ac787

  • SSDEEP

    49152:z+gYXZTD1VXUqzX7VwjvMoh1IFyuyigWnMzm6sDBKv:eTHUxUoh1IF9gl2

Malware Config

Targets

    • Target

      2a5d4895e98e443d4a121f3c22dae87386341c63f739523c25c5ab5f420a480dN.exe

    • Size

      1.7MB

    • MD5

      66eded8b72e993eef8ec0b1b19944cc0

    • SHA1

      21b2295f1f9bd380dd114ff5a5c931b281b1f74c

    • SHA256

      2a5d4895e98e443d4a121f3c22dae87386341c63f739523c25c5ab5f420a480d

    • SHA512

      da0079636800e3b463582f90fe68daf8edfa3dd7a5b2837844bd4009607e6b98e6d134ddb92c2f91ebafc251636840e8ab6f5a4fdb87d716a40ca111a84ac787

    • SSDEEP

      49152:z+gYXZTD1VXUqzX7VwjvMoh1IFyuyigWnMzm6sDBKv:eTHUxUoh1IF9gl2

    • DcRat

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

    • Dcrat family

    • 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.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks