General

  • Target

    a661541c4cbeb1db859f6cec6c53979b5633c75e

  • Size

    90KB

  • Sample

    230201-fws76sca43

  • MD5

    b3290148681f8218ecb80ca430f9fdba

  • SHA1

    a661541c4cbeb1db859f6cec6c53979b5633c75e

  • SHA256

    1e37cf52cafb1f3e6eea67caa620379f37e5bd271fa21786ee33ad000164da83

  • SHA512

    327abbb1b2a12cd6f1298d40c7ba115dfeeffd17e309aad50e20c4ba2af95263aec208a1a32e9c3fa6d1a8f184df539cc89d9dce12f04837789b22b40472302d

  • SSDEEP

    1536:DHYMiClDhdyA5x5Z0Dvyecobn6RN4vr3d6TJsGmGYWAPgnMNQ:DYjClDhQlDvrcob6H4DXnOmQ

Score
10/10

Malware Config

Extracted

Family

buer

C2

https://kkjjhhdff.site/

https://oderstrg.site/

Targets

    • Target

      a661541c4cbeb1db859f6cec6c53979b5633c75e

    • Size

      90KB

    • MD5

      b3290148681f8218ecb80ca430f9fdba

    • SHA1

      a661541c4cbeb1db859f6cec6c53979b5633c75e

    • SHA256

      1e37cf52cafb1f3e6eea67caa620379f37e5bd271fa21786ee33ad000164da83

    • SHA512

      327abbb1b2a12cd6f1298d40c7ba115dfeeffd17e309aad50e20c4ba2af95263aec208a1a32e9c3fa6d1a8f184df539cc89d9dce12f04837789b22b40472302d

    • SSDEEP

      1536:DHYMiClDhdyA5x5Z0Dvyecobn6RN4vr3d6TJsGmGYWAPgnMNQ:DYjClDhQlDvrcob6H4DXnOmQ

    Score
    10/10
    • Buer

      Buer is a new modular loader first seen in August 2019.

    • Modifies WinLogon for persistence

    • Buer Loader

      Detects Buer loader in memory or disk.

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks