General

  • Target

    b9cf22ab52de455b9b773887331822339f50a966505b082b73f5188942ff6bef

  • Size

    41.8MB

  • Sample

    221228-fjq72she35

  • MD5

    0c3771b4ec951093a78f06d95f5d82ff

  • SHA1

    c92cb11d94aabfe93a77833616f1384da1a2e177

  • SHA256

    b9cf22ab52de455b9b773887331822339f50a966505b082b73f5188942ff6bef

  • SHA512

    6ffde13ccde35513c1074e0d1bff17e87e7c9c898ec207233e58ba614629c4179dd58e020ff6028144bd8af33dce2ce502ddf905ed22b299a580238a501943ee

  • SSDEEP

    786432:7p1Ttdw0gR6p3ixWQG6n6kLAi0cTDwNl3sNEo2+9U0y3xb/xL9:7bToRm3Sn6s0ewXsNEfACxbJJ

Malware Config

Targets

    • Target

      b9cf22ab52de455b9b773887331822339f50a966505b082b73f5188942ff6bef

    • Size

      41.8MB

    • MD5

      0c3771b4ec951093a78f06d95f5d82ff

    • SHA1

      c92cb11d94aabfe93a77833616f1384da1a2e177

    • SHA256

      b9cf22ab52de455b9b773887331822339f50a966505b082b73f5188942ff6bef

    • SHA512

      6ffde13ccde35513c1074e0d1bff17e87e7c9c898ec207233e58ba614629c4179dd58e020ff6028144bd8af33dce2ce502ddf905ed22b299a580238a501943ee

    • SSDEEP

      786432:7p1Ttdw0gR6p3ixWQG6n6kLAi0cTDwNl3sNEo2+9U0y3xb/xL9:7bToRm3Sn6s0ewXsNEfACxbJJ

    • BazarBackdoor

      Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.

    • Bazar/Team9 Backdoor payload

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Writes to the Master Boot Record (MBR)

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks