General

  • Target

    3317daace715dc332622d883091cf68b

  • Size

    72KB

  • Sample

    231231-mv42lsfchn

  • MD5

    3317daace715dc332622d883091cf68b

  • SHA1

    02fa74523198ebc1db490bdc6f10a78a44c4e28b

  • SHA256

    e4fd947a781611c85ea2e5afa51b186de7f351026c28eb067ad70028acd72cda

  • SHA512

    2739769ddd079b6555ebb84204f46bf94317ef5351734bd2aad74b1ad53738f92e3e278ea74b22f9b17db2219e01c963e694e6e1aec52a6089eaba394ef331b2

  • SSDEEP

    1536:BICS4AgxwhjEO3r825exqkHYnKeGsXqsMt:q2SN3mxYnKr

Malware Config

Extracted

Family

blackmatter

Version

1.6

Botnet

0c6ca0532355a106258791f50b66c153

Attributes
  • attempt_auth

    false

  • create_mutex

    false

  • encrypt_network_shares

    true

  • exfiltrate

    false

  • mount_volumes

    true

rsa_pubkey.base64
aes.base64

Extracted

Path

C:\Users\BzOXaWmXM.README.txt

Family

blackmatter

Ransom Note
~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> Hello B&G International >>> 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/RSW33BDOYPLWM78U9A09BZDI >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/RSW33BDOYPLWM78U9A09BZDI

Targets

    • Target

      3317daace715dc332622d883091cf68b

    • Size

      72KB

    • MD5

      3317daace715dc332622d883091cf68b

    • SHA1

      02fa74523198ebc1db490bdc6f10a78a44c4e28b

    • SHA256

      e4fd947a781611c85ea2e5afa51b186de7f351026c28eb067ad70028acd72cda

    • SHA512

      2739769ddd079b6555ebb84204f46bf94317ef5351734bd2aad74b1ad53738f92e3e278ea74b22f9b17db2219e01c963e694e6e1aec52a6089eaba394ef331b2

    • SSDEEP

      1536:BICS4AgxwhjEO3r825exqkHYnKeGsXqsMt:q2SN3mxYnKr

    Score
    10/10
    • BlackMatter Ransomware

      BlackMatter ransomware group claims to be Darkside and REvil succesor.

    • Renames multiple (182) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Impact

Defacement

1
T1491

Tasks