Overview

overview

10

Static

static

10

2e50eb85f6...b2.exe

windows7-x64

10

2e50eb85f6...b2.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    111s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2022 15:45

Sharing

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General

  • Target

    2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2.exe

  • Size

    79KB

  • MD5

    18c7c940bc6a4e778fbdf4a3e28151a8

  • SHA1

    f3589918d71b87c7e764479b79c4a7b485cb746a

  • SHA256

    2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2

  • SHA512

    6e808fe882640a517c2054fdece73059c7ea3e27a946e55f41b91fd0f757dcd8c76be8f381f60f3e45449edebaa4f620b903337727607f7768543b1acec40d18

  • SSDEEP

    1536:+nICS4ArFnRoHhcVyid9EZZoi+zQXFpVX42N:5ZnmqVyq9EN+Mb7

Score
10/10
blackmatterransomware

Malware Config

Extracted

Path

C:\RJqGZ2eGm.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.

    ransomwareblackmatter
  • Modifies extensions of user files ⋅ 12 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Sets desktop wallpaper using registry ⋅ 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger ⋅ 6 IoCs
  • Enumerates physical storage devices ⋅ 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Control Panel ⋅ 3 IoCs
    evasion
  • Modifies registry class ⋅ 20 IoCs
  • Modifies system certificate store ⋅ 2 TTPs 6 IoCs
    evasionspywaretrojan
  • Opens file in notepad (likely ransom note) ⋅ 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses ⋅ 4 IoCs
  • Suspicious use of AdjustPrivilegeToken ⋅ 17 IoCs
  • Suspicious use of FindShellTrayWindow ⋅ 1 IoCs
  • Suspicious use of SetWindowsHookEx ⋅ 3 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 8 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
    Modifies system certificate store
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" /p C:\RJqGZ2eGm.README.txt
      Opens file in notepad (likely ransom note)
      Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        Modifies registry class
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        PID:1520
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    Suspicious use of AdjustPrivilegeToken
    PID:936

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:\RJqGZ2eGm.README.txt
                      MD5

                      b7f54f12f8d46188c98172cf6c39f91e

                      SHA1

                      73f9572f52d54b2cffb8e4464f28453bc3d192b9

                      SHA256

                      dedefcd61e8ed1e5a7c8a9469aad4605042ce2eb69c2b20cf6e1ed9b8a14f56d

                      SHA512

                      2f0f138db798902990fb4c4cd4f05c66f656a7aef5aa186bad17a39683973c98da392b5207d9ba654a6e2774d920bbf2afea996513e91d159cb87961548374d5

                      Download Submit
                    • C:\Users\Admin\Documents\ReadRename.xps.RJqGZ2eGm
                      MD5

                      69f55e97e3ea332d6f353b03bf5d4923

                      SHA1

                      ba6ef7f87dc4810859e1b0fc1044bd849ce88fd1

                      SHA256

                      9ff0b483f39936854f69b45154a440e9b9449be4d9ea5a4f46392f6ad8f978e9

                      SHA512

                      2db7e46663a2fe06357abbd0b6904f704d217c5edc0696c341ddb09dec0d46b06d632f27b52a7ee218ce1368d8484c779a38a5604eb378ab53be941f4d333b6d

                      Download Submit
                    • memory/1100-56-0x0000000000000000-mapping.dmp
                      Download
                    • memory/1520-59-0x0000000000000000-mapping.dmp
                      Download
                    • memory/1520-60-0x000007FEFC511000-0x000007FEFC513000-memory.dmp
                      Download
                    • memory/1944-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp
                      Download
                    • memory/1944-55-0x0000000000315000-0x0000000000326000-memory.dmp
                      Download