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General

  • Target

    Yandex.exe

  • Size

    2.3MB

  • Sample

    230527-w9tnvsdb7s

  • MD5

    b84876dcd1d247a1713c4087f23be7e3

  • SHA1

    49e70c44d051634d1295462166bf7934afe9e82f

  • SHA256

    293cb1a1225350a8c48afda07823412db271b5163f41494ecab25986e8532e0e

  • SHA512

    3068cf0ea5fee216a78ddb1f2a52326445661ff8f486b1504e638ec2eeec7b6e8431a0fb5571721cab0b76b82bca99fca5deffd825dcbd7ae6103c3d7290f3b6

  • SSDEEP

    49152:uvavdx/LrYtCxcKrkvCOkN+rDDC+r5u8Qe5/:WaPrYtCxcKrYCOkkdK

Malware Config

Targets

    • Target

      Yandex.exe

    • Size

      2.3MB

    • MD5

      b84876dcd1d247a1713c4087f23be7e3

    • SHA1

      49e70c44d051634d1295462166bf7934afe9e82f

    • SHA256

      293cb1a1225350a8c48afda07823412db271b5163f41494ecab25986e8532e0e

    • SHA512

      3068cf0ea5fee216a78ddb1f2a52326445661ff8f486b1504e638ec2eeec7b6e8431a0fb5571721cab0b76b82bca99fca5deffd825dcbd7ae6103c3d7290f3b6

    • SSDEEP

      49152:uvavdx/LrYtCxcKrkvCOkN+rDDC+r5u8Qe5/:WaPrYtCxcKrYCOkkdK

    • Downloads MZ/PE file

    • Modifies Installed Components in the 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

    • Adds Run key to start application

    • 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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks