General

  • Target

    8f1b0affffb2f2f58b477515d1ce54f4daa40a761d828041603d5536c2d53539.bin.sample

  • Size

    79KB

  • Sample

    210921-qk6z1ahfc3

  • MD5

    de63e92d3c6735c5e31269678d2b9ea9

  • SHA1

    6f430f0efe373e5e4cab9c48bcef14460b7b4796

  • SHA256

    8f1b0affffb2f2f58b477515d1ce54f4daa40a761d828041603d5536c2d53539

  • SHA512

    9d33340004965a97e56bfb02adb9bb575acc349021ff306c18f7d3d9792a518ee48ab0e09a1bd82346cb1a4d59e3f9baf66797a4612a2ce304f0b83fe94a6993

Malware Config

Extracted

Family

blackmatter

Version

2.0

Botnet

506d1d0f4ed51ecc3e9cf1839a4b21a7

Attributes
  • attempt_auth

    false

  • create_mutex

    false

  • encrypt_network_shares

    true

  • exfiltrate

    false

  • mount_volumes

    true

rsa_pubkey.base64
aes.base64

Extracted

Path

C:\chkvc3MvG.README.txt

Family

blackmatter

Ransom Note
~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> Hello Compagnie Financiere Europeenne De Prises De Participation SA >>> 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 of data. If you do not contact us we will publish all your data will send it to the biggest mass media and your customers. >>> 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/6O5KBMY42CFGLLU7L2MW4 >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/6O5KBMY42CFGLLU7L2MW4

Targets

    • Target

      8f1b0affffb2f2f58b477515d1ce54f4daa40a761d828041603d5536c2d53539.bin.sample

    • Size

      79KB

    • MD5

      de63e92d3c6735c5e31269678d2b9ea9

    • SHA1

      6f430f0efe373e5e4cab9c48bcef14460b7b4796

    • SHA256

      8f1b0affffb2f2f58b477515d1ce54f4daa40a761d828041603d5536c2d53539

    • SHA512

      9d33340004965a97e56bfb02adb9bb575acc349021ff306c18f7d3d9792a518ee48ab0e09a1bd82346cb1a4d59e3f9baf66797a4612a2ce304f0b83fe94a6993

    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