General

  • Target

    b.zip

  • Size

    446KB

  • Sample

    241221-sqy8fssjhn

  • MD5

    985b24da5760a2acb663944336ac96fa

  • SHA1

    5750ff42866f4ebf885c4eba2d346e656c19b1d0

  • SHA256

    b8463c09f968d938c4722febb7342f2e9babc2deba004f0945892ad297214b31

  • SHA512

    b1c1248390de5c847033fe3b098bfe257c296add90ad0ec2d885ccc7545ee9799e0cbf6e48402b87d361070af1c71ee13c0e90900f2679f99c2ba17cd4ea7009

  • SSDEEP

    12288:boutuJQIn872o78fwwHqo5C8nDDCLu/ou7I0ngv0Y:bhsJQo87QfUo5CkDOLr8bBY

Malware Config

Extracted

Path

C:\Program Files\instructions_read_me.txt

Family

blackbasta

Ransom Note
ATTENTION! Your network has been breached and all data was encrypted. Please contact us at: https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/ Login ID: 3dd718a3-db04-485f-b882-250349c8a4de *!* To access .onion websites download and install Tor Browser at: https://www.torproject.org/ (Tor Browser is not related to us) *!* To restore all your PCs and get your network working again, follow these instructions: - Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. It doesn't matter, who are trying to do this, either it will be your IT guys or a recovery agency. Please follow these simple rules to avoid data corruption: - Do not modify, rename or delete files. Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. - Do not hire a recovery company. They can't decrypt without the key. They also don't care about your business. They believe that they are good negotiators, but it is not. They usually fail. So speak for yourself. Waiting you in a chat.
URLs

https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/

Targets

    • Target

      basta/basta.dll

    • Size

      1023KB

    • MD5

      08378cd36fdbf69dba24d14393ad564d

    • SHA1

      c698e08ff114499e9fecf39fcbf23f652f1cdad8

    • SHA256

      764b1117262d33f0a69b4f4c72fad607b7c71c262f60b9b2b35a21e7f4967786

    • SHA512

      ef831fc12ad4831e180c9e5e9babbf1a2d8675a918992fc6f5306447b30e12de63e5034124e31a2d9517db4322e7aaf4a01cecf3239f2c6f6d459358849ef197

    • SSDEEP

      12288:jbXTgrBCnMCz5WYgeWYg955/155/UqgFUHx2lvyRJbhLvTcT+sqnhDik2BBD+/rF:jbTgrBCnjzgsKrd7m4+OmMlaT2BZSP2

    • Black Basta

      A ransomware family targeting Windows and Linux ESXi first seen in February 2022.

    • Blackbasta family

    • Renames multiple (7968) files with added filename extension

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

    • Target

      basta/blank.docx

    • Size

      97KB

    • MD5

      faef191f63aa34eaf62b309e1fa6797b

    • SHA1

      f694595c850267b72ae7d78deb087badcaba1e9c

    • SHA256

      23628968944a6db98842aa2b69d931edd4dd889ff51d345373624af62f71f5b7

    • SHA512

      0bc5de66bdf619cd3a56916c0918d12ac1412e83b18d44db55b7593e4a29c9ff96f84b48b945b80ff50cfebd812a543be70e3298205bd46b9c6c8f8b1e01b617

    • SSDEEP

      3:v:v

    Score
    3/10
    • Target

      basta/blank2.docx

    • Size

      97KB

    • MD5

      faef191f63aa34eaf62b309e1fa6797b

    • SHA1

      f694595c850267b72ae7d78deb087badcaba1e9c

    • SHA256

      23628968944a6db98842aa2b69d931edd4dd889ff51d345373624af62f71f5b7

    • SHA512

      0bc5de66bdf619cd3a56916c0918d12ac1412e83b18d44db55b7593e4a29c9ff96f84b48b945b80ff50cfebd812a543be70e3298205bd46b9c6c8f8b1e01b617

    • SSDEEP

      3:v:v

    Score
    3/10
    • Target

      basta/start.bat

    • Size

      33B

    • MD5

      34eee3ee267d4f5e0ec60e5ad8fac9e1

    • SHA1

      d522e7e32849c1bc5e6f7665aa59e642f8fdcda0

    • SHA256

      9eebdef38366ca977bf24574af2c996ccfb19ace6f317bf52c91aacaebe1a090

    • SHA512

      6587491e3d725e8fad82ef3b9b915694cf54227d37d3be735f71a67c1710969c68ced5b9baf5cd877baf6d54312b386c077ed691ec769d4f74acb054a8967b93

    Score
    10/10
    • Black Basta

      A ransomware family targeting Windows and Linux ESXi first seen in February 2022.

    • Blackbasta family

    • Renames multiple (1652) files with added filename extension

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

MITRE ATT&CK Enterprise v15

Tasks