Overview

overview

10

Static

static

3

c57a3a0f68...a1.exe

windows7-x64

10

c57a3a0f68...a1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c57a3a0f68f7801a539570b2e7f3d9a1

  • Size

    692KB

  • Sample

    240313-kxl8gahd2w

  • MD5

    c57a3a0f68f7801a539570b2e7f3d9a1

  • SHA1

    11a1c89ed136ca2a1a73c95ac5ac7ceaf1ac4f9c

  • SHA256

    0bd5b653d07d59fafdec74e8693450411c6abf9f40e155626c72aca9d8c39b65

  • SHA512

    3a7bbd2b32dda5bc279fb130e01d26e411c0253bf4095485c85276468ace22446fd04e49ce9bfd939d6a8a42aa61a47c910bf77deb0b626e366c1b36e71a8890

  • SSDEEP

    12288:Tp4pNfz3ymJnJ8QCFkxCaQTOlOb47MMpX4+:tEtl9mRda1rMMpXb

Score
10/10
persistenceransomware

Malware Config

Targets

    • Target

      c57a3a0f68f7801a539570b2e7f3d9a1

    • Size

      692KB

    • MD5

      c57a3a0f68f7801a539570b2e7f3d9a1

    • SHA1

      11a1c89ed136ca2a1a73c95ac5ac7ceaf1ac4f9c

    • SHA256

      0bd5b653d07d59fafdec74e8693450411c6abf9f40e155626c72aca9d8c39b65

    • SHA512

      3a7bbd2b32dda5bc279fb130e01d26e411c0253bf4095485c85276468ace22446fd04e49ce9bfd939d6a8a42aa61a47c910bf77deb0b626e366c1b36e71a8890

    • SSDEEP

      12288:Tp4pNfz3ymJnJ8QCFkxCaQTOlOb47MMpX4+:tEtl9mRda1rMMpXb

    Score
    10/10
    persistenceransomware

    • Modifies WinLogon for persistence

      persistence

    • Renames multiple (91) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks