General

  • Target

    sample

  • Size

    1KB

  • Sample

    220907-tqrztahgfn

  • MD5

    563ffac3b2c4488ecd24e81c655ad397

  • SHA1

    28eca35a7ebee2f546b35fff21dfe5e96923a36f

  • SHA256

    558fbd26ccbafc05c9a2b070abba157dd69b0d212b821149b056a7b98644cbad

  • SHA512

    7e969a85fbf142c82961669e31e70f1029126c879602665ae2cd10a487893e4fa0207ea1d1c6ebe360ebadf0b44f834fcaa69de78a076e7edd97b20f0e550fc5

Malware Config

Targets

    • Target

      sample

    • Size

      1KB

    • MD5

      563ffac3b2c4488ecd24e81c655ad397

    • SHA1

      28eca35a7ebee2f546b35fff21dfe5e96923a36f

    • SHA256

      558fbd26ccbafc05c9a2b070abba157dd69b0d212b821149b056a7b98644cbad

    • SHA512

      7e969a85fbf142c82961669e31e70f1029126c879602665ae2cd10a487893e4fa0207ea1d1c6ebe360ebadf0b44f834fcaa69de78a076e7edd97b20f0e550fc5

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • 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 v6

Tasks