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General

  • Target

    f827.exe

  • Size

    7.1MB

  • Sample

    220928-xjsvbahhhm

  • MD5

    77dc41db519fab01bc4a5824b53cc341

  • SHA1

    4686b44d75ef755be47310a4ec93e92287958565

  • SHA256

    1988e9a4716e60e5b6fd98a3c9dc1d599ff5052f47ae223ebb1f57dc746b3388

  • SHA512

    c02b34a322ea6a5971eacd854f079880cf7d842a8d6e0d19148b63f199247edbb89b46104b554ea123367bda188ebad324672e5484955362bc41306ccddf77bb

  • SSDEEP

    98304:wST/lfZzFcaeYZ0kc2Jo2Tb45Tb7Nkf/OCDm9sv+xUrA6Mv3WFKKTj2un60T28TK:w6Zh1I2JFTb45TPaf/vmOvo5KVBTZsr

Malware Config

Targets

    • Target

      f827.exe

    • Size

      7.1MB

    • MD5

      77dc41db519fab01bc4a5824b53cc341

    • SHA1

      4686b44d75ef755be47310a4ec93e92287958565

    • SHA256

      1988e9a4716e60e5b6fd98a3c9dc1d599ff5052f47ae223ebb1f57dc746b3388

    • SHA512

      c02b34a322ea6a5971eacd854f079880cf7d842a8d6e0d19148b63f199247edbb89b46104b554ea123367bda188ebad324672e5484955362bc41306ccddf77bb

    • SSDEEP

      98304:wST/lfZzFcaeYZ0kc2Jo2Tb45Tb7Nkf/OCDm9sv+xUrA6Mv3WFKKTj2un60T28TK:w6Zh1I2JFTb45TPaf/vmOvo5KVBTZsr

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Sets service image path in registry

    • 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 installed software on the system

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

    • 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