Resubmissions

04/10/2022, 19:26

221004-x5ybxscbf9 10

04/10/2022, 19:14

221004-xxp1ksccdj 8

03/10/2022, 13:23

221003-qnbchahbck 10

General

  • Target

    ReimageRepair.exe

  • Size

    572KB

  • Sample

    221004-xxp1ksccdj

  • MD5

    f5af9d859c9a031ab6bea66048fab6e1

  • SHA1

    d0ee45d3534cc23cbd0d7c3765203ed926a7eb0a

  • SHA256

    4efd1bc1bdc12da1bbdc597cf3f37f0c65e582f42e353cf781ac1fe422dfa68c

  • SHA512

    c771c3e7ef88116168b9e3e0d0e4dbb2f2ad03dec0a87b9d3427faf7edb0a2510bb80dcb57b50fb6bcb9f683f23d876f35dc91a85006973bdb3fec41d51145a5

  • SSDEEP

    12288:YEsvcQmY4ZHUDRHjYMCVdjQooYddMoAnUM22FT4i8BdK:Y30Q0HCFcXFRdyUKF

Malware Config

Targets

    • Target

      ReimageRepair.exe

    • Size

      572KB

    • MD5

      f5af9d859c9a031ab6bea66048fab6e1

    • SHA1

      d0ee45d3534cc23cbd0d7c3765203ed926a7eb0a

    • SHA256

      4efd1bc1bdc12da1bbdc597cf3f37f0c65e582f42e353cf781ac1fe422dfa68c

    • SHA512

      c771c3e7ef88116168b9e3e0d0e4dbb2f2ad03dec0a87b9d3427faf7edb0a2510bb80dcb57b50fb6bcb9f683f23d876f35dc91a85006973bdb3fec41d51145a5

    • SSDEEP

      12288:YEsvcQmY4ZHUDRHjYMCVdjQooYddMoAnUM22FT4i8BdK:Y30Q0HCFcXFRdyUKF

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Registers COM server for autorun

    • Uses Session Manager for persistence

      Creates Session Manager registry key to run executable early in system boot.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks