General

  • Target

    733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe

  • Size

    231KB

  • Sample

    250117-myp2vstphv

  • MD5

    0adae0c64017d858ba11f98f8276a970

  • SHA1

    4363eac789ffcf9d966981069e2709a249509181

  • SHA256

    733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef

  • SHA512

    e31f1d41ad682b6e566e628ec02fbcc690f79026442e6171f3ae745058d80c72cdc36b6822f84d9c950d8aa24bdc4820257b30a43bb7138888df65bc423cdea8

  • SSDEEP

    6144:xloZMffsXtioRkts/cnnK6cMltMMjw2xpaBPyAxVkElb8e1mhzLHiy:DoZdtlRk83MltMMjw2xpaBPyAxVkAMWy

Malware Config

Extracted

Family

umbral

C2

https://discordapp.com/api/webhooks/1326983350606368888/6nNwZ_BPeT1GIaRGLO0xQj2DsvnMBNSzwMGZo-Zz-1rTdrKUSQ9WCgqpApFmFqKixfL1

Targets

    • Target

      733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe

    • Size

      231KB

    • MD5

      0adae0c64017d858ba11f98f8276a970

    • SHA1

      4363eac789ffcf9d966981069e2709a249509181

    • SHA256

      733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef

    • SHA512

      e31f1d41ad682b6e566e628ec02fbcc690f79026442e6171f3ae745058d80c72cdc36b6822f84d9c950d8aa24bdc4820257b30a43bb7138888df65bc423cdea8

    • SSDEEP

      6144:xloZMffsXtioRkts/cnnK6cMltMMjw2xpaBPyAxVkElb8e1mhzLHiy:DoZdtlRk83MltMMjw2xpaBPyAxVkAMWy

    • 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

    • Reads user/profile data of web browsers

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

    • 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