Resubmissions

09-08-2021 02:09

210809-1rgs6ncdqe 10

09-08-2021 02:05

210809-f9henvc7we 1

General

  • Target

    eresco.exe

  • Size

    4.7MB

  • Sample

    210809-1rgs6ncdqe

  • MD5

    17b27ab5c49676aab24454868ca2adf7

  • SHA1

    47028b12aa1257421b096f55d9d1fc68f6b8f72b

  • SHA256

    5ac6766680c8c06a4b0b4e6a929ec4f5404fca75aa774f3eb986f81b1b30622b

  • SHA512

    2938b181c8b17a9cab48168439a89aa1b4f6f67634d9faeb80946795db31d84ceca3c550e9feae9c0f391cccce5c30195e87bf633a0a8e2309544f23cc55866c

Score
10/10

Malware Config

Extracted

Family

rustybuer

C2

https://bostauherde.com/

Targets

    • Target

      eresco.exe

    • Size

      4.7MB

    • MD5

      17b27ab5c49676aab24454868ca2adf7

    • SHA1

      47028b12aa1257421b096f55d9d1fc68f6b8f72b

    • SHA256

      5ac6766680c8c06a4b0b4e6a929ec4f5404fca75aa774f3eb986f81b1b30622b

    • SHA512

      2938b181c8b17a9cab48168439a89aa1b4f6f67634d9faeb80946795db31d84ceca3c550e9feae9c0f391cccce5c30195e87bf633a0a8e2309544f23cc55866c

    Score
    10/10
    • RustyBuer

      RustyBuer is a new variant of Buer loader written in Rust.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks