General

  • Target

    Auora.exe

  • Size

    231KB

  • Sample

    240420-vy8g7sdf35

  • MD5

    a96e98be73b7840e10e039d7b3b2a72a

  • SHA1

    bde4c46b9a32ba14aafe652ebe14cb03ba2692a8

  • SHA256

    886a78f6d4a3bb1667c7d8ba553487a9d42fc38188253d3604cfe5c0743b636b

  • SHA512

    c4855010f4b9bf3c0d3f2b78447380d0f85ed440355ed0ed39f10727b44d555f1a7b9ae3a6d241f313d85fa8f052692c20149ecb5b4f6b841291a3f12651ced7

  • SSDEEP

    6144:xloZM+rIkd8g+EtXHkv/iD4yr5ClW8e1mzi:DoZtL+EP8VCv

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1231285868673761290/A7kDRsbI6W0T22kX0NRWAvj7IvcP_OfFLnEcTAyyedJeT5cv_F3b9okZKA1DXQqGq_CO

Targets

    • Target

      Auora.exe

    • Size

      231KB

    • MD5

      a96e98be73b7840e10e039d7b3b2a72a

    • SHA1

      bde4c46b9a32ba14aafe652ebe14cb03ba2692a8

    • SHA256

      886a78f6d4a3bb1667c7d8ba553487a9d42fc38188253d3604cfe5c0743b636b

    • SHA512

      c4855010f4b9bf3c0d3f2b78447380d0f85ed440355ed0ed39f10727b44d555f1a7b9ae3a6d241f313d85fa8f052692c20149ecb5b4f6b841291a3f12651ced7

    • SSDEEP

      6144:xloZM+rIkd8g+EtXHkv/iD4yr5ClW8e1mzi:DoZtL+EP8VCv

    • Detect Umbral payload

    • Umbral

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

    • Drops file in Drivers directory

    • Modifies system executable filetype association

    • Reads user/profile data of web browsers

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

    • Registers COM server for autorun

    • 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