General

  • Target

    Kioscene Softdrive v2.10.exe

  • Size

    229KB

  • Sample

    240802-ssvytazarl

  • MD5

    18dff45f8e9eb29b0fb13e341bdd8dfc

  • SHA1

    768114e6ed8a6dab7eec0e677d53430c37e5393e

  • SHA256

    dfaadfbf1693ea477fde1a960b20280daa82e35128f537a62859bc5aeff9a948

  • SHA512

    ace88964c82470394bd18f6b1ca16fecdf3394b0900f0b375dc358bd8577828e7041c35d9bb790b9d91b062df9167963221f6c7ab62740c6f5ae1e9861c5f223

  • SSDEEP

    6144:lloZM+rIkd8g+EtXHkv/iD44lU3HdmOhOU9va6v1Nb8e1mpi:noZtL+EP84lU3HdmOhOU9va6vXj

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1268792358443679786/BLaBLMMa4NWUzHHIdleoWZKehmVAekW_z3wN7Yc2GEAkdMnni-xyyUOgxC4wH7tVKOFK

Targets

    • Target

      Kioscene Softdrive v2.10.exe

    • Size

      229KB

    • MD5

      18dff45f8e9eb29b0fb13e341bdd8dfc

    • SHA1

      768114e6ed8a6dab7eec0e677d53430c37e5393e

    • SHA256

      dfaadfbf1693ea477fde1a960b20280daa82e35128f537a62859bc5aeff9a948

    • SHA512

      ace88964c82470394bd18f6b1ca16fecdf3394b0900f0b375dc358bd8577828e7041c35d9bb790b9d91b062df9167963221f6c7ab62740c6f5ae1e9861c5f223

    • SSDEEP

      6144:lloZM+rIkd8g+EtXHkv/iD44lU3HdmOhOU9va6v1Nb8e1mpi:noZtL+EP84lU3HdmOhOU9va6vXj

    • Detect Umbral payload

    • Umbral

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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

    • Deletes itself

    • 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