Analysis

  • max time kernel
    72s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2022 15:45

General

  • Target

    2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2.exe

  • Size

    79KB

  • MD5

    18c7c940bc6a4e778fbdf4a3e28151a8

  • SHA1

    f3589918d71b87c7e764479b79c4a7b485cb746a

  • SHA256

    2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2

  • SHA512

    6e808fe882640a517c2054fdece73059c7ea3e27a946e55f41b91fd0f757dcd8c76be8f381f60f3e45449edebaa4f620b903337727607f7768543b1acec40d18

  • SSDEEP

    1536:+nICS4ArFnRoHhcVyid9EZZoi+zQXFpVX42N:5ZnmqVyq9EN+Mb7

Score
10/10

Malware Config

Extracted

Path

C:\o4h6Kyt6i.README.txt

Family

blackmatter

Ransom Note ~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your network is encrypted, and currently not operational. We need only money, after payment we will give you a decryptor for the entire network and you will restore all the data. >>> What data stolen? From your network was stolen 250 GB of data. If you do not contact us we will publish all your data in our blog and will send it to the biggest mass media. Blog post link: http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/YdWh7oMKjT/13f1a8efc53e2fa712813f4c39147a79 >>> What guarantees? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. If we do not give you decrypters or we do not delete your data, no one will pay us in the future, this does not comply with our goals. We always keep our promises. >> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/5AZHJFLKJNPOJ4F5O5T >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/YdWh7oMKjT/13f1a8efc53e2fa712813f4c39147a79

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/5AZHJFLKJNPOJ4F5O5T

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

  • Modifies extensions of user files ⋅ 14 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Sets desktop wallpaper using registry ⋅ 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger ⋅ 6 IoCs
  • Modifies Control Panel ⋅ 3 IoCs
  • Opens file in notepad (likely ransom note) ⋅ 1 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 4 IoCs
  • Suspicious use of AdjustPrivilegeToken ⋅ 17 IoCs
  • Suspicious use of FindShellTrayWindow ⋅ 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2.exe
    "C:\Users\Admin\AppData\Local\Temp\2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2.exe"
    Modifies extensions of user files
    Sets desktop wallpaper using registry
    Suspicious use of NtSetInformationThreadHideFromDebugger
    Modifies Control Panel
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    PID:3448
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    Suspicious use of AdjustPrivilegeToken
    PID:2912
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\o4h6Kyt6i.README.txt
    Opens file in notepad (likely ransom note)
    Suspicious use of FindShellTrayWindow
    PID:2632

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

        Discovery

          Execution

            Exfiltration

              Impact

              Initial Access

                Lateral Movement

                  Persistence

                    Privilege Escalation

                      Replay Monitor

                      00:00 00:00

                      Downloads

                      • C:\Users\Admin\Desktop\o4h6Kyt6i.README.txt
                        MD5

                        b7f54f12f8d46188c98172cf6c39f91e

                        SHA1

                        73f9572f52d54b2cffb8e4464f28453bc3d192b9

                        SHA256

                        dedefcd61e8ed1e5a7c8a9469aad4605042ce2eb69c2b20cf6e1ed9b8a14f56d

                        SHA512

                        2f0f138db798902990fb4c4cd4f05c66f656a7aef5aa186bad17a39683973c98da392b5207d9ba654a6e2774d920bbf2afea996513e91d159cb87961548374d5