Overview

overview

10

Static

static

eaac447d6a...le.exe

windows7_x64

10

eaac447d6a...le.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-en-20210916
  • submitted
    20-09-2021 12:44

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General

  • Target

    eaac447d6ae733210a07b1f79e97eda017a442e721d8fafe618e2c789b18234b.bin.sample.exe

  • Size

    79KB

  • MD5

    c958e5710adefbc68f3e0719f48bcf87

  • SHA1

    f50429c2e706f65fd3fb62968a74b391e5417e66

  • SHA256

    eaac447d6ae733210a07b1f79e97eda017a442e721d8fafe618e2c789b18234b

  • SHA512

    f5dbe5cc944d6dccbc085c5344e3a61f8945c838dcbfee0a0fbf69429946fed5db363da621835ffb54ee76eba938f7fd31c73b9a727ab2cf5c554b58bc09258d

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 1000 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/7Fzi2ntSlp/1094de0bf2bc03ac2ac8dc79d118a785 >>> 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/9MDXJ6LXOUEK84ALNT >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/7Fzi2ntSlp/1094de0bf2bc03ac2ac8dc79d118a785

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/9MDXJ6LXOUEK84ALNT

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

    ransomwareblackmatter
  • Modifies extensions of user files 15 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 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eaac447d6ae733210a07b1f79e97eda017a442e721d8fafe618e2c789b18234b.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\eaac447d6ae733210a07b1f79e97eda017a442e721d8fafe618e2c789b18234b.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:1628
    • 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:468
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:1740
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1936

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1628-53-0x00000000752A1000-0x00000000752A3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1628-55-0x00000000005C0000-0x00000000005C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1628-54-0x00000000005C5000-0x00000000005D6000-memory.dmp

    Filesize

    68KB

    Download

  • memory/1628-56-0x00000000005D6000-0x00000000005D7000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1740-61-0x000007FEFBB71000-0x000007FEFBB73000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1740-62-0x00000000041C0000-0x00000000041C1000-memory.dmp

    Filesize

    4KB

    Download