General

  • Target

    4be85e2083b64838fb66b92195a250228a721cdb5ae91817ea97b37aa53f4a2b

  • Size

    78KB

  • Sample

    210902-z2kyjaegem

  • MD5

    62a70f74d6ac64829a8a31e306e9d41d

  • SHA1

    ec26b38a29549272cc5f0cf548e208030ff114b0

  • SHA256

    4be85e2083b64838fb66b92195a250228a721cdb5ae91817ea97b37aa53f4a2b

  • SHA512

    0bd94273735921ca43b2c12e1e9c1aba158c2f825621d1a3daa8bafecf652ea35f68bc12a748fe583429b698dc51ce4f39194129daf5521996d2d9faceb3a372

Malware Config

Extracted

Family

blackmatter

Version

2.0

Botnet

b0e039b42ef6c19c2189651c9f6c390e

Credentials

  • Protocol:
    smtp
  • Port:
    587
  • Username:
    r.cabello@mflgroup.com
  • Password:
    Rubcabher96

  • Protocol:
    smtp
  • Port:
    587
  • Username:
    j.berenguel@mflgroup.com
  • Password:
    Alsa2003
Attributes
  • attempt_auth

    true

  • create_mutex

    true

  • encrypt_network_shares

    true

  • exfiltrate

    false

  • mount_volumes

    true

rsa_pubkey.base64
aes.base64

Extracted

Path

C:\YvGHBQWH8.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 500 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: %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://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/LH2WLI60XU9O283RYADWV >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/LH2WLI60XU9O283RYADWV

Targets

    • Target

      4be85e2083b64838fb66b92195a250228a721cdb5ae91817ea97b37aa53f4a2b

    • Size

      78KB

    • MD5

      62a70f74d6ac64829a8a31e306e9d41d

    • SHA1

      ec26b38a29549272cc5f0cf548e208030ff114b0

    • SHA256

      4be85e2083b64838fb66b92195a250228a721cdb5ae91817ea97b37aa53f4a2b

    • SHA512

      0bd94273735921ca43b2c12e1e9c1aba158c2f825621d1a3daa8bafecf652ea35f68bc12a748fe583429b698dc51ce4f39194129daf5521996d2d9faceb3a372

    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.

    • 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 v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Impact

Defacement

1
T1491

Tasks