Overview

overview

10

Static

static

BlackMatte...a8.exe

windows7_x64

10

BlackMatte...a8.exe

windows10_x64

10

Analysis

  • max time kernel
    70s
  • max time network
    72s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    29/09/2021, 21:48

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General

  • Target

    BlackMatterSample/69e5f8287029bcc65354abefabb6854b4f7183735bd50b2da0624eb3ae252ea8.exe

  • Size

    82KB

  • MD5

    73ec7f773ed33070c979fce8027f4680

  • SHA1

    d3eb98283502aeb85340267d1ba110390b77c436

  • SHA256

    69e5f8287029bcc65354abefabb6854b4f7183735bd50b2da0624eb3ae252ea8

  • SHA512

    6834caf307cd829dd394405985ade89afc41f6dbd53e6807b7af0a8ed8042a3d047f7a67c95bc4919793a20da34087815a35c494b7adcd85cae071be0b335e85

Score
10/10
blackmatterransomware

Malware Config

Extracted

Path

C:\UCzUExPUL.README.txt

Family

blackmatter

Ransom Note
~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> Hello Expert System SpA We offer you a quick solution to this problem without too much fuss and publicity. You buy our decryption software and we remove all the information we were able to pull from your network. Otherwise, we will make the incident public and notify your customers of the data theft and hacking. The reputation will be ruined and may cause much more damage than the opportunity to negotiate with us. If you value your time and money of your clients, we are waiting for the dialogue in our chat room, the link to which you will find below. >>> 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 of data. If you do not contact us we will publish all your data will send it to the biggest mass media and your customers. >>> 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/YX6RXMC65MRX8LLQ >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/YX6RXMC65MRX8LLQ

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

    ransomwareblackmatter
  • Modifies extensions of user files 27 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Enumerates connected drives 3 TTPs 1 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\BlackMatterSample\69e5f8287029bcc65354abefabb6854b4f7183735bd50b2da0624eb3ae252ea8.exe
    "C:\Users\Admin\AppData\Local\Temp\BlackMatterSample\69e5f8287029bcc65354abefabb6854b4f7183735bd50b2da0624eb3ae252ea8.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:664
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:608
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\UCzUExPUL.README.txt
    1⤵
    • Opens file in notepad (likely ransom note)
    PID:3908

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/664-114-0x0000000001013000-0x0000000001015000-memory.dmp

          Filesize

          8KB

          Download

        • memory/664-115-0x0000000001010000-0x0000000001011000-memory.dmp

          Filesize

          4KB

          Download