General

  • Target

    OperaGXSetup.exe

  • Size

    5.7MB

  • Sample

    240508-rvgcrsbd24

  • MD5

    73df5f92aea2760144e41c0de9567f86

  • SHA1

    6bca2cde8d92e6102a33c5a5af39772ff29c21bb

  • SHA256

    716e82e1c4b70bb81aa11d6354e8863a71bec3c326555c355d5772a4274df881

  • SHA512

    d3ed149c6cd57ea690a775fb34d281fcff9e73bb4d47468f640c66e8ca136bbb2ebf69d6a068d477349d2f4be88d64798eb9c9c57356751880e1e87059bbdf4d

  • SSDEEP

    98304:Y0NFx6666666666666666666666666666666x666666666666666fwwwwwwwwwwr:jdUcT+ApWkdjQgmg7Ynn30jpKca6iPdi

Malware Config

Targets

    • Target

      OperaGXSetup.exe

    • Size

      5.7MB

    • MD5

      73df5f92aea2760144e41c0de9567f86

    • SHA1

      6bca2cde8d92e6102a33c5a5af39772ff29c21bb

    • SHA256

      716e82e1c4b70bb81aa11d6354e8863a71bec3c326555c355d5772a4274df881

    • SHA512

      d3ed149c6cd57ea690a775fb34d281fcff9e73bb4d47468f640c66e8ca136bbb2ebf69d6a068d477349d2f4be88d64798eb9c9c57356751880e1e87059bbdf4d

    • SSDEEP

      98304:Y0NFx6666666666666666666666666666666x666666666666666fwwwwwwwwwwr:jdUcT+ApWkdjQgmg7Ynn30jpKca6iPdi

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks