Overview

overview

10

Static

static

10

66e6563ece...9f.exe

windows7_x64

10

66e6563ece...9f.exe

windows10_x64

10

Analysis

  • max time kernel
    87s
  • max time network
    26s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    23-08-2021 20:28

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General

  • Target

    66e6563ecef8f33b1b283a63404a2029550af9a6574b84e0fb3f2c6a8f42e89f.exe

  • Size

    78KB

  • MD5

    feed59d9048fdc17962b71f7550388dd

  • SHA1

    b24887db18de6b017687c2aca95cf1ccfa0d8ea3

  • SHA256

    66e6563ecef8f33b1b283a63404a2029550af9a6574b84e0fb3f2c6a8f42e89f

  • SHA512

    4fcd03ec2e73e0ce75774c21db66184bc3eab9128cac1cae9d1487a6bb8461a5641a7c3be590291f561833c22377e2f74c09084b37fda1f4d524b2607b252284

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 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/9BEBTCZQN6BQJ94DJXJ >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/9BEBTCZQN6BQJ94DJXJ

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 31 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66e6563ecef8f33b1b283a63404a2029550af9a6574b84e0fb3f2c6a8f42e89f.exe
    "C:\Users\Admin\AppData\Local\Temp\66e6563ecef8f33b1b283a63404a2029550af9a6574b84e0fb3f2c6a8f42e89f.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:984
    • 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:1612
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:1780
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1484

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/984-60-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/984-62-0x0000000001D90000-0x0000000001D91000-memory.dmp

    Filesize

    4KB

    Download

  • memory/984-61-0x0000000001D95000-0x0000000001DA6000-memory.dmp

    Filesize

    68KB

    Download

  • memory/984-63-0x0000000001DA6000-0x0000000001DA7000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1780-68-0x000007FEFB761000-0x000007FEFB763000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1780-69-0x0000000004260000-0x0000000004261000-memory.dmp

    Filesize

    4KB

    Download