Analysis

  • max time kernel
    121s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    23-11-2021 10:31

General

  • Target

    b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

  • Size

    80KB

  • MD5

    cdece7491402c7cb06964ffc680d791a

  • SHA1

    8c5427baa48d840bc7508eeaa7c091d368a68e0a

  • SHA256

    b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a

  • SHA512

    5ff6eb1f81bb309aede35a9aef26ea587b6c2e49bea66f6e91bf1dbc02cc978869a1bfd376b524522cc8bf99f48ee7f62db9322212342bc4d7af40984290e501

Malware Config

Extracted

Path

C:\gawreXkrr.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 some amount of data automatically (reach us to get the amount). 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/9YDGH04DC6ZS7RP0085Q >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/9YDGH04DC6ZS7RP0085Q

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

  • suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)

    suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)

  • suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (nowautomation .com)

    suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (nowautomation .com)

  • Modifies extensions of user files 12 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Modifies Control Panel 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
    "C:\Users\Admin\AppData\Local\Temp\b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.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
    PID:952
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1068

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/952-55-0x0000000075971000-0x0000000075973000-memory.dmp

    Filesize

    8KB

  • memory/952-56-0x0000000001D35000-0x0000000001D46000-memory.dmp

    Filesize

    68KB

  • memory/952-57-0x0000000001D30000-0x0000000001D31000-memory.dmp

    Filesize

    4KB

  • memory/952-58-0x0000000001D46000-0x0000000001D47000-memory.dmp

    Filesize

    4KB