Overview

overview

10

Static

static

10

e4a2260bcb...2d.exe

windows7_x64

10

e4a2260bcb...2d.exe

windows10_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    05-10-2021 10:29

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General

  • Target

    e4a2260bcba8059207fdcc2d59841a8c4ddbe39b6b835feef671bceb95cd232d.exe

  • Size

    79KB

  • MD5

    5de71f0e1ad0e2c2968153809ffaff05

  • SHA1

    f023f314327acd96cd8a0f8e32451b2d2dee61d0

  • SHA256

    e4a2260bcba8059207fdcc2d59841a8c4ddbe39b6b835feef671bceb95cd232d

  • SHA512

    2fce4fbdf3bc7e0dfa9cc90581c08ea6578522c65891e12359bd464b1ea007006979491b9049e4a20fabd196bf321275cc003d537236c2bd5bf8826f85543c05

Score
10/10
blackmatterransomware

Malware Config

Extracted

Path

C:\1rWCqamCt.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 6 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
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4a2260bcba8059207fdcc2d59841a8c4ddbe39b6b835feef671bceb95cd232d.exe
    "C:\Users\Admin\AppData\Local\Temp\e4a2260bcba8059207fdcc2d59841a8c4ddbe39b6b835feef671bceb95cd232d.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" /p C:\1rWCqamCt.README.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      • Suspicious use of WriteProcessMemory
      PID:1020
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:860
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1372

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/860-68-0x000007FEFB761000-0x000007FEFB763000-memory.dmp

    Filesize

    8KB

    Download

  • memory/860-71-0x00000000040E0000-0x00000000040E1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1304-60-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1304-61-0x0000000000865000-0x0000000000876000-memory.dmp

    Filesize

    68KB

    Download

  • memory/1304-62-0x0000000000860000-0x0000000000861000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1304-63-0x0000000000876000-0x0000000000877000-memory.dmp

    Filesize

    4KB

    Download