Resubmissions

09/05/2023, 20:15

230509-y113paea33 10

09/05/2023, 19:51

230509-yk45eadh55 10

General

  • Target

    Setup.exe

  • Size

    43.2MB

  • Sample

    230509-y113paea33

  • MD5

    d1a21bfd883572a963ca35d2ff9f90bf

  • SHA1

    b683334b9a6d973c5f0ae6b2a0d0fa17ebb3de87

  • SHA256

    737b8ba2b7237d3fb796877f49748682d4a8be63ef5bef59e601ec1020ed4f86

  • SHA512

    80ecc330a8e3d09b397d9ea756501dff240949151590a109fb83f901276f2149826f5a5395334205b1f66381262d505713dae1b03e0c48dfee1c59964499e276

  • SSDEEP

    786432:5pVjBMGuH5hYAdfr5Vbsz6zpwA22YpSnMVMzBxpT0U2OTNLxJ95iv97:5pVjBM/7ld9V5pwT3pSnM2VxJGOTR47

Malware Config

Targets

    • Target

      Setup.exe

    • Size

      43.2MB

    • MD5

      d1a21bfd883572a963ca35d2ff9f90bf

    • SHA1

      b683334b9a6d973c5f0ae6b2a0d0fa17ebb3de87

    • SHA256

      737b8ba2b7237d3fb796877f49748682d4a8be63ef5bef59e601ec1020ed4f86

    • SHA512

      80ecc330a8e3d09b397d9ea756501dff240949151590a109fb83f901276f2149826f5a5395334205b1f66381262d505713dae1b03e0c48dfee1c59964499e276

    • SSDEEP

      786432:5pVjBMGuH5hYAdfr5Vbsz6zpwA22YpSnMVMzBxpT0U2OTNLxJ95iv97:5pVjBM/7ld9V5pwT3pSnM2VxJGOTR47

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • 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