General

  • Target
    Froststrap-Setup.exe
  • Size 22.7MB
  • Sample260815-cmg7rsdd24
  • SHA256 42df3cca6e1b38b5fa0cfe08523b57afaba1be51ae0313e36ca93496bff30561
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Froststrap-Setup.exe
    • Size 22.7MB
    • SHA256 42df3cca6e1b38b5fa0cfe08523b57afaba1be51ae0313e36ca93496bff30561
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Target
      $PLUGINSDIR/System.dll
    • Size 29KB
    • SHA256 a659985eb1c12d6eade4c2c9d4e48f5748c9f2afa942a8934034c2c622db050a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/modern-wizard.bmp
    • Size 25KB
    • SHA256 3ad2dc318056d0a2024af1804ea741146cfc18cc404649a44610cbf8b2056cf2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      $PLUGINSDIR/nsDialogs.dll
    • Size 14KB
    • SHA256 044077656d92a24ca83e479a6c65143316e9a5d11e772ec54e9fc7d872a227d7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Froststrap.exe
    • Size 62.0MB
    • SHA256 633a5f4441aa0131bdff666a3316740931d68f31d9e5a72781d61687634d40ce
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks