General

  • Target

    Fortnite.exe

  • Size

    1.1MB

  • Sample

    230604-2gzmasea29

  • MD5

    f795b0bb519a53aa55f3a1f8b421708d

  • SHA1

    18b0c53280f120d18e224ef389e21a09902da4f4

  • SHA256

    0102ee1516fd47fc9cb7ffb31c922e747cc5ce638e2fb0d5e133275e271cd492

  • SHA512

    d3a1908461508c6bf322e1aa809b6b04ed27e0722957fcdf5d4f828060f4d4ba76d415ba56b8dad1d9d07129603590fc75699d98014fd79f3bfb8ea051e70180

  • SSDEEP

    24576:U2G/nvxW3Ww0tEiau4VjR/qCUzDG6bNUa1BMJWl:UbA30klYS6b26

Malware Config

Targets

    • Target

      Fortnite.exe

    • Size

      1.1MB

    • MD5

      f795b0bb519a53aa55f3a1f8b421708d

    • SHA1

      18b0c53280f120d18e224ef389e21a09902da4f4

    • SHA256

      0102ee1516fd47fc9cb7ffb31c922e747cc5ce638e2fb0d5e133275e271cd492

    • SHA512

      d3a1908461508c6bf322e1aa809b6b04ed27e0722957fcdf5d4f828060f4d4ba76d415ba56b8dad1d9d07129603590fc75699d98014fd79f3bfb8ea051e70180

    • SSDEEP

      24576:U2G/nvxW3Ww0tEiau4VjR/qCUzDG6bNUa1BMJWl:UbA30klYS6b26

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Disables Task Manager via registry modification

    • Checks computer location settings

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

    • Executes dropped EXE

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Winlogon Helper DLL

1
T1004

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Tasks