Overview

overview

10

Static

static

10

2e50eb85f6...le.exe

windows7_x64

10

2e50eb85f6...le.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-en-20210916
  • submitted
    20-09-2021 12:45

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General

  • Target

    2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2.bin.sample.exe

  • Size

    79KB

  • MD5

    18c7c940bc6a4e778fbdf4a3e28151a8

  • SHA1

    f3589918d71b87c7e764479b79c4a7b485cb746a

  • SHA256

    2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2

  • SHA512

    6e808fe882640a517c2054fdece73059c7ea3e27a946e55f41b91fd0f757dcd8c76be8f381f60f3e45449edebaa4f620b903337727607f7768543b1acec40d18

Score
10/10
blackmatterransomware

Malware Config

Extracted

Path

C:\SykSKioSK.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 7 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\2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2.bin.sample.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:532
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" /p C:\SykSKioSK.README.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      • Suspicious use of WriteProcessMemory
      PID:320
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:396
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1568

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/396-62-0x000007FEFC401000-0x000007FEFC403000-memory.dmp

    Filesize

    8KB

    Download

  • memory/396-65-0x00000000041D0000-0x00000000041D1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/532-54-0x0000000075EC1000-0x0000000075EC3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/532-55-0x0000000001DB5000-0x0000000001DC6000-memory.dmp

    Filesize

    68KB

    Download

  • memory/532-56-0x0000000001DB0000-0x0000000001DB1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/532-57-0x0000000001DC6000-0x0000000001DC7000-memory.dmp

    Filesize

    4KB

    Download