General

  • Target

    20742987e6f743814b25e214f8b2cd43111e2f60a8856a6cca87cafd85422f41.bin.sample

  • Size

    78KB

  • Sample

    210921-qk3ycahfc2

  • MD5

    7b125a148ce0e0c126b95395dbf02b0e

  • SHA1

    778f954480ca76029109fd6bf34904bfb1109e84

  • SHA256

    20742987e6f743814b25e214f8b2cd43111e2f60a8856a6cca87cafd85422f41

  • SHA512

    daaeb7e228a3d5c7717c58287539902e79215d9795dcb1459213f7d515392f53f16ac2f0d455e635e89addd321f4f68ccdad9f5af60f8f4d1759b7ddf5409cf9

Malware Config

Extracted

Family

blackmatter

Version

2.0

Botnet

5791ae39aeab40b5e8e33d8dce465877

Attributes
attempt_auth
false
create_mutex
true
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 * ' . >>> 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 50 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://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/LEOYRMQLSRHFGFGYWF2T5 >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/LEOYRMQLSRHFGFGYWF2T5

Targets

    • Target

      20742987e6f743814b25e214f8b2cd43111e2f60a8856a6cca87cafd85422f41.bin.sample

    • Size

      78KB

    • MD5

      7b125a148ce0e0c126b95395dbf02b0e

    • SHA1

      778f954480ca76029109fd6bf34904bfb1109e84

    • SHA256

      20742987e6f743814b25e214f8b2cd43111e2f60a8856a6cca87cafd85422f41

    • SHA512

      daaeb7e228a3d5c7717c58287539902e79215d9795dcb1459213f7d515392f53f16ac2f0d455e635e89addd321f4f68ccdad9f5af60f8f4d1759b7ddf5409cf9

    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

Collection

    Command and Control

      Credential Access

        Defense Evasion

        Execution

          Exfiltration

            Impact

            Initial Access

              Lateral Movement

                Persistence

                  Privilege Escalation

                    Tasks