Overview

overview

10

Static

static

10

w1i488c2sdfmss6.exe

windows7_x64

10

w1i488c2sdfmss6.exe

windows10_x64

10

Analysis

  • max time kernel
    92s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    12-08-2021 19:55

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General

  • Target

    w1i488c2sdfmss6.exe

  • Size

    71KB

  • MD5

    10aa058a3ac49e016cad7987b8e09886

  • SHA1

    cca6682330a819592c3b1ea0448ceb4e141593dc

  • SHA256

    6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db

  • SHA512

    f115fb62b1ca5e18f6340d42ff4393e2b175917312ae1cc14e7a6a9322cf8adaf22457bc8213e2baafdc2cb19d5db1e5a9c003155cbf142d5a08604495e22f6e

Score
10/10
blackmatterransomware

Malware Config

Extracted

Path

C:\tgln8vJnC.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 500 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: %BLOG_URL% >>> 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://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/OYPF561W4U8HVA0NLVCKJCZB >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/OYPF561W4U8HVA0NLVCKJCZB

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

    ransomwareblackmatter
  • Modifies extensions of user files 14 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops file in System32 directory 1 IoCs
  • 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 31 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 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\w1i488c2sdfmss6.exe
    "C:\Users\Admin\AppData\Local\Temp\w1i488c2sdfmss6.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:1040
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" /p C:\tgln8vJnC.README.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      • Suspicious use of WriteProcessMemory
      PID:1348
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Drops file in System32 directory
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:1708
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:432

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1040-60-0x0000000074F31000-0x0000000074F33000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1040-62-0x0000000002150000-0x0000000002151000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1040-61-0x0000000002155000-0x0000000002166000-memory.dmp

    Filesize

    68KB

    Download

  • memory/1040-63-0x0000000002166000-0x0000000002167000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1708-69-0x0000000004260000-0x0000000004261000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1708-68-0x000007FEFBA81000-0x000007FEFBA83000-memory.dmp

    Filesize

    8KB

    Download