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General

  • Target

    MicrosoftEdgeSetup.exe

  • Size

    1.5MB

  • Sample

    240430-wtymwacf41

  • MD5

    0326a720ec6f8a9f75bf4a85856bdfb5

  • SHA1

    b106410a5a77254bb5b237e89f158d8bf7b97547

  • SHA256

    202b59a2588c576cb56ed8e4b98d96b70fb57805015c6a63624ac176779a471d

  • SHA512

    1531cf49c0a92cdca54a3557b8be08a4d7cbc7d77c469e6ae2e2f51c1584e6cb837e2370d399b49237a7f92a0e3b3b9a974e74bf4992fa61b75a6caa2a6853c9

  • SSDEEP

    24576:Kwyf3Su4a/KnwYtDXl42hxt3q7lR3hVtTcKaBQ7SdBZpeU3i:7yf3L4aGweXl1h/C3Jc9BQ7SdPMX

Malware Config

Targets

    • Target

      MicrosoftEdgeSetup.exe

    • Size

      1.5MB

    • MD5

      0326a720ec6f8a9f75bf4a85856bdfb5

    • SHA1

      b106410a5a77254bb5b237e89f158d8bf7b97547

    • SHA256

      202b59a2588c576cb56ed8e4b98d96b70fb57805015c6a63624ac176779a471d

    • SHA512

      1531cf49c0a92cdca54a3557b8be08a4d7cbc7d77c469e6ae2e2f51c1584e6cb837e2370d399b49237a7f92a0e3b3b9a974e74bf4992fa61b75a6caa2a6853c9

    • SSDEEP

      24576:Kwyf3Su4a/KnwYtDXl42hxt3q7lR3hVtTcKaBQ7SdBZpeU3i:7yf3L4aGweXl1h/C3Jc9BQ7SdPMX

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks