General

  • Target

    Netflix Checker.rar

  • Size

    18.0MB

  • Sample

    241128-gtht4ayjas

  • MD5

    870345e874450b018c16035ecdd2d98d

  • SHA1

    4923efc4bdf882d26c47498cbba6956bacfe73bc

  • SHA256

    8c489447851c7499b4ed710559c74ec6c61978ee5c2d9303d353fd8d50dad035

  • SHA512

    4d28ec528a60f416cc288cc6fc259029f68c2c088e6522b0c7ceb703954556409b3b1febe913c6336230199f374588b3ae9878dd272fbd94d77b9a0297203125

  • SSDEEP

    393216:iA44y+l919iuz9EWRGrK7YUvFhXlKdV4oImsKuTX+QinQNUP4:0xCMQ9EjUdh4zxvVuTX+QFC4

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1311076635377664100/Sd5KeNZASyDMdGMxVc-eozZlY1pWCcLmuuBn9jPZLNBn1hhDwHX0pimlF0gYZfNv2Fir

Targets

    • Target

      Netflix Checker.rar

    • Size

      18.0MB

    • MD5

      870345e874450b018c16035ecdd2d98d

    • SHA1

      4923efc4bdf882d26c47498cbba6956bacfe73bc

    • SHA256

      8c489447851c7499b4ed710559c74ec6c61978ee5c2d9303d353fd8d50dad035

    • SHA512

      4d28ec528a60f416cc288cc6fc259029f68c2c088e6522b0c7ceb703954556409b3b1febe913c6336230199f374588b3ae9878dd272fbd94d77b9a0297203125

    • SSDEEP

      393216:iA44y+l919iuz9EWRGrK7YUvFhXlKdV4oImsKuTX+QinQNUP4:0xCMQ9EjUdh4zxvVuTX+QFC4

    • Detect Umbral payload

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Umbral family

    • 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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks