Analysis

  • max time kernel
    133s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    01-05-2021 01:07

General

  • Target

    bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe

  • Size

    54KB

  • MD5

    a3d964aaf642d626474f02ba3ae4f49b

  • SHA1

    a4e2deb65f97f657b50e48707b883ce2b138e787

  • SHA256

    bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893

  • SHA512

    f424466a1019e82a11b3317160f2009c572179355d6a48a42547cb3e57d99eaa4bf3425fc0c002f3be154270abc5ff97e53a39e0c3a7c09db2354ef87de96e4f

Malware Config

Extracted

Path

C:\\README.53411c86.TXT

Family

darkside

Ransom Note
----------- [ Welcome to DarkSide ] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - universal decryptor. This program will restore all your network. Follow our instructions below and you will recover all your data. DATA LEAK ---------------------------------------------- We have uploaded more than 400 GB of data from your company (Contracts, payments, reports, personal data of your customers, employees, user data, usernames and passwords of various accounts, and much more) If you do not contact us, we will publish all the data on the Internet (media), as well as send it to all the controlling organizations in your country, your customers, partners and competitors. PROOFS (screenshots): https://ibb.co/87JcyNT https://ibb.co/QfBfq0y https://ibb.co/L5cwM9L https://ibb.co/Tr6JvBd https://ibb.co/Wcw1MsD https://ibb.co/y0GtL0z https://ibb.co/v1ykbV3 https://ibb.co/G5bLyFj https://ibb.co/YpY238t Your personal leak page: http://darksidc3iux462n6yunevoag52ntvwp6wulaz3zirkmh4cnz6hhj7id.onion/122/primehealthservices/2HL7CQH8SIgjDOC6Drmy91ks9uF-8tH01iNecY1tAkFnQK2c0TEWlOek8biiBK9K On the page you will find examples of files that have been downloaded. The data is preloaded and will be automatically published if you do not pay. After publication, your data will be available for at least 6 months on our tor cdn servers. We are ready: - To provide you the evidence of stolen data - To delete all the stolen data. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to get access on website? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://dark24zz36xm4y2phwe7yvnkkkkhxionhfrwp67awpb3r3bdcneivoqd.onion/LD73WIA272ABZP7ZPOH20QAECU6KOF3IBL2EVVZVFIQDZSADZFKOCUIYRMBI0PSN When you open our website, put the following data in the input form: Key: 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 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

https://ibb.co/87JcyNT

https://ibb.co/QfBfq0y

https://ibb.co/L5cwM9L

https://ibb.co/Tr6JvBd

https://ibb.co/Wcw1MsD

https://ibb.co/y0GtL0z

https://ibb.co/v1ykbV3

https://ibb.co/G5bLyFj

https://ibb.co/YpY238t

http://darksidc3iux462n6yunevoag52ntvwp6wulaz3zirkmh4cnz6hhj7id.onion/122/primehealthservices/2HL7CQH8SIgjDOC6Drmy91ks9uF-8tH01iNecY1tAkFnQK2c0TEWlOek8biiBK9K

http://dark24zz36xm4y2phwe7yvnkkkkhxionhfrwp67awpb3r3bdcneivoqd.onion/LD73WIA272ABZP7ZPOH20QAECU6KOF3IBL2EVVZVFIQDZSADZFKOCUIYRMBI0PSN

Signatures

  • DarkSide

    Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.

  • Modifies extensions of user files 26 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies data under HKEY_USERS 26 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe
    "C:\Users\Admin\AppData\Local\Temp\bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe"
    1⤵
      PID:1816
    • C:\Users\Admin\AppData\Local\Temp\bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe
      "C:\Users\Admin\AppData\Local\Temp\bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Users\Admin\AppData\Local\Temp\bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe
        "C:\Users\Admin\AppData\Local\Temp\bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe"
        2⤵
        • Drops file in System32 directory
        • Sets desktop wallpaper using registry
        • Modifies Control Panel
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1440
        • C:\Users\Admin\AppData\Local\Temp\bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe
          C:\Users\Admin\AppData\Local\Temp\bfb31c96f9e6285f5bb60433f2e45898b8a7183a2591157dc1d766be16c29893.exe -work worker0 job0-1440
          3⤵
          • Modifies extensions of user files
          PID:1496
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:544

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Collection

    Data from Local System

    1
    T1005

    Impact

    Defacement

    1
    T1491

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1440-62-0x0000000000000000-mapping.dmp
    • memory/1496-64-0x0000000000000000-mapping.dmp
    • memory/1816-60-0x0000000075511000-0x0000000075513000-memory.dmp
      Filesize

      8KB