General

  • Target

    2f1404af9417dbbbe69d53cb0cc0d6f2fc79138c372ab3c498ec05f60dbdc9f3

  • Size

    44KB

  • Sample

    220129-znj43shhe2

  • MD5

    13067ecf3b17d7a6543e368db7f9e5a5

  • SHA1

    68bf9a4c9b52f6769dd4f8242903103bfc96e8b1

  • SHA256

    2f1404af9417dbbbe69d53cb0cc0d6f2fc79138c372ab3c498ec05f60dbdc9f3

  • SHA512

    a644b179419490e0ae5f4c1bb990bb318b09b08fdc8deb0e1db59e21b7a189c7f5787b4014ab463c6877fed8c50bf90945347eb4859373a52e75db1a60f027cf

Malware Config

Extracted

Family

blackmatter

Version

2.0

Botnet

207aab0afc614ac68359fc63f9665961

C2

https://fluentzip.org

http://fluentzip.org

Attributes
  • attempt_auth

    false

  • create_mutex

    true

  • encrypt_network_shares

    true

  • exfiltrate

    true

  • mount_volumes

    true

rsa_pubkey.base64
aes.base64

Extracted

Path

C:\TEVwl5dwR.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 sensitive 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. >>> 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/EWX33VYY3IGOXSG5ZZ2 >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/EWX33VYY3IGOXSG5ZZ2

Targets

    • Target

      2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c

    • Size

      80KB

    • MD5

      5c66cd4f21254f83663819138e634dd9

    • SHA1

      6626cae85970e6490b8b0bf9da9aa4b57a79bb62

    • SHA256

      2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c

    • SHA512

      093e1fb491d73ee240f1b0084bda233ef272618b56e61ed8602a57dec7b241b3f80a4a1749ff46d141399e71dd6127c9a8893c9d8d24c6aa48b0479a7ab42a2a

    Score
    10/10
    • BlackMatter Ransomware

      BlackMatter ransomware group claims to be Darkside and REvil succesor.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Impact

Defacement

1
T1491

Tasks