General

  • Target

    aee43496026aadd3bb0884c7fcd200758fde8c35940f0745628f4a0f480923c0_JC.doc

  • Size

    92KB

  • Sample

    231012-pc3f6sbf34

  • MD5

    87dc64cd0d2d13f4897619c008540bcb

  • SHA1

    7f191350095893ebc3e1aa0e9e79dc083961e697

  • SHA256

    aee43496026aadd3bb0884c7fcd200758fde8c35940f0745628f4a0f480923c0

  • SHA512

    09e5d4f84ee2da4306cd4ddc97bebec6071b075e236ef861149daf30ae156d7e0b6f6882926eb7e0f841988424e07d283f505d9de4d91955e1f305961b05b755

  • SSDEEP

    768:ewAbZSibMX9gRWjFrOxpo0gcdOSY04ttpVtocQWILLIYGYsTqcmtDU9YHL:ewAlRQKxmidnY04ttpXoeyhGYsVmtYUL

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

STRIGIO

C2

sandshoe.myfirewall.org:5344

Mutex

I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4

Targets

    • Target

      aee43496026aadd3bb0884c7fcd200758fde8c35940f0745628f4a0f480923c0_JC.doc

    • Size

      92KB

    • MD5

      87dc64cd0d2d13f4897619c008540bcb

    • SHA1

      7f191350095893ebc3e1aa0e9e79dc083961e697

    • SHA256

      aee43496026aadd3bb0884c7fcd200758fde8c35940f0745628f4a0f480923c0

    • SHA512

      09e5d4f84ee2da4306cd4ddc97bebec6071b075e236ef861149daf30ae156d7e0b6f6882926eb7e0f841988424e07d283f505d9de4d91955e1f305961b05b755

    • SSDEEP

      768:ewAbZSibMX9gRWjFrOxpo0gcdOSY04ttpVtocQWILLIYGYsTqcmtDU9YHL:ewAlRQKxmidnY04ttpXoeyhGYsVmtYUL

    • UAC bypass

    • Windows security bypass

    • XpertRAT

      XpertRAT is a remote access trojan with various capabilities.

    • XpertRAT Core payload

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Adds policy Run key to start application

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Windows security modification

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks