General

  • Target

    Loader.exe

  • Size

    76.6MB

  • Sample

    250109-rmcdva1rey

  • MD5

    184ca2c051f9989e5c05677f6ce46d27

  • SHA1

    d7b158258331cb518d04765351ff2b38b64aa31e

  • SHA256

    29dd0d0ffaa4ca7326ae5e2d2db2bac6df06f26f3bddca9619a64467dacd01f7

  • SHA512

    7d24a087c01703a6a52671e063255e66491b5a7de6c09e38c5bc960fe2efead9496c2220478c35d4edf981ed2979f845559b54a0c7865a503a5bfea3f9245d74

  • SSDEEP

    1572864:8bVlCWRomcSk8IpG7V+VPhqIUE7WxylKtFiY4MHHLeqPNLtDadvvJZ61gwN1:8pEAomcSkB05awIAxyMoMHVLted3JEgi

Malware Config

Targets

    • Target

      Loader.exe

    • Size

      76.6MB

    • MD5

      184ca2c051f9989e5c05677f6ce46d27

    • SHA1

      d7b158258331cb518d04765351ff2b38b64aa31e

    • SHA256

      29dd0d0ffaa4ca7326ae5e2d2db2bac6df06f26f3bddca9619a64467dacd01f7

    • SHA512

      7d24a087c01703a6a52671e063255e66491b5a7de6c09e38c5bc960fe2efead9496c2220478c35d4edf981ed2979f845559b54a0c7865a503a5bfea3f9245d74

    • SSDEEP

      1572864:8bVlCWRomcSk8IpG7V+VPhqIUE7WxylKtFiY4MHHLeqPNLtDadvvJZ61gwN1:8pEAomcSkB05awIAxyMoMHVLted3JEgi

    • Enumerates VirtualBox DLL files

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Blocklisted process makes network request

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks