Analysis

  • max time kernel
    169s
  • max time network
    185s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    19-02-2022 07:57

General

  • Target

    1be90c72735d56e2f9ee9583d6bece1b9e6a78ecc475f08d6f133863b56256ea.exe

  • Size

    54KB

  • MD5

    c81424677bcfcf9eeafa3504d87e5c63

  • SHA1

    9393744eaf2cd526e3007a0363d2291faba236b2

  • SHA256

    1be90c72735d56e2f9ee9583d6bece1b9e6a78ecc475f08d6f133863b56256ea

  • SHA512

    4ac18a81065b70e44052705753e7d5bf5585e05db8618d2758434e7e126dda8b39c010d0521d237c440fe3da766f107992517a542ac9b8b11ac1f98f7958a6fc

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-790714498-1549421491-1643397139-1000\BackFiles_encoded01.txt

Family

ryuk

Ransom Note
[+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your system has extension .encoded01. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). [+] What guarantees? [+] Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will not cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt 1-5 files for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practise - time is much more valuable than money. [+] How to get access on website? [+] You can open our site by the shortcut "SUPPORT (TOR_BROWSER)" created on the desktop. Also as the second option you can install the tor browser: a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website. Full link will be provided below. ----------------------------------------------------------------------------------------- !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damge of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, but please should not interfere. !!! !!! !!! ----------------------------------------------------------------------------------------- Your ID: BslOjiEIZkRVoqiHQesLw22nJLk6PiQjNZ%2FryyiNELJPmXO%2FFDxIcmSMn7Zv2jjlY7F2%2BA5lBi49l4n8Zd868DuENNlzPxUMNszZ%2FTbaM4lC5VbeF2IEfDHwxuEwhXPdSvN9rlk%2BUmR94N3uLY8x%2BjbzKaRYegdhf87A4S2MfaQo%2BmjoSGxbKRn12OA1kS7xRqJj%2Bj1JI3Ja4f7nRIt2pkCZLPZtUC49Fs7K3ijaTfFcu2zeM0gQe0Hem%2FV05SnhYaAC70pvDD4Y8%2BzxI49goFSBT7hOTVpFQd3JxSjYYecwuhzMFi1UAjPh4%2B0unzmpRopUtD94G1x95uPtQ9UJ0FGAG7dLfC0rIsbjvw6Ic7p%2Bk0vdTGYSfGv0lsRx%2BRGiTr4M1nREUHQNxZvKL49gikq6K8IsKVBVQJDJxUTPMflson%2B%2BFGwFAj7Yxe0nvGO0Mbt%2B9xxjMiZoxOPcU4UdwkqkG%2BxpciQlZuDKzwOfffRusS31N2QOd2DPnbd9z2HGaLE4%2B1ZeFwY85MXlMIFkm16UU9k1T1J6fOnG7ibZN9JDnjzkE1IqJwTWn7YVpDqWfppR%2FSZGVGl15f7cRugg%2BWrsfMxnTywXApeNtQfaRpFplWz9FV8XXErQ7Loi%2FwSxNI8AxRlkCCtjh5rBKo1xtUr7fMU8aTVLZcXAyiX%2FJuQ0kSLcBDokLB%2Fz8eIT3W2ANJRg2TFtUls1w9X8dtgFo3Cqe9xRaV8NE5PdtjiAbYJlh0POF0BHIUrG1aoi%2FyegZZE23WhaCz1j18nhZNlJtTWOK6hMSihda%2FTO40nMYOwz%2Bhj9SU80IxH2wrRw03uCZpkgwVs%2BJEJ99Oj%2FJvgW5jf%2FIdxgRQQQN%2BjF1wqqWIZWmyr4HE4seH6Cnclo5xHgbrAl42dKDSs%2ByJDvCINjl2KnLPcERQRkVNfE42LfBd9DmwTaV1AXdR7X%2F80wjjzxV6JK6ipjIyZOk5ztRYsW4U2eHeFzPwd8L83b1gOAT69Rp3%2FZCEcoWWnrmr0l%2ByDNYOx8yFVHVitj683xMbpeu12MSOlKWQ4rSp6f%2F3yOIdBs7HzMBDogIzGX3%2Fd33kqtYrRyuk9YKCNkyvrZNY8V922OO%2FlGYjI0Eun5sA6JTIBchHG%2BOVQYfUiQ6Ldl5WShd6UDzXdnJDA305%2FQD6lar3aHadRLPDFdX8Dtt0PPJ6NTpny6alEkYWfgz%2B0XgEyaV4Y8vjo%3D Your support onion(TOR) url: http://chat5sqrnzqewampznybomgn4hf2m53tybkarxk4sfaktwt7oqpkcvyd.onion/gate.php?data=BslOjiEIZkRVoqiHQesLw22nJLk6PiQjNZ%2FryyiNELJPmXO%2FFDxIcmSMn7Zv2jjlY7F2%2BA5lBi49l4n8Zd868DuENNlzPxUMNszZ%2FTbaM4lC5VbeF2IEfDHwxuEwhXPdSvN9rlk%2BUmR94N3uLY8x%2BjbzKaRYegdhf87A4S2MfaQo%2BmjoSGxbKRn12OA1kS7xRqJj%2Bj1JI3Ja4f7nRIt2pkCZLPZtUC49Fs7K3ijaTfFcu2zeM0gQe0Hem%2FV05SnhYaAC70pvDD4Y8%2BzxI49goFSBT7hOTVpFQd3JxSjYYecwuhzMFi1UAjPh4%2B0unzmpRopUtD94G1x95uPtQ9UJ0FGAG7dLfC0rIsbjvw6Ic7p%2Bk0vdTGYSfGv0lsRx%2BRGiTr4M1nREUHQNxZvKL49gikq6K8IsKVBVQJDJxUTPMflson%2B%2BFGwFAj7Yxe0nvGO0Mbt%2B9xxjMiZoxOPcU4UdwkqkG%2BxpciQlZuDKzwOfffRusS31N2QOd2DPnbd9z2HGaLE4%2B1ZeFwY85MXlMIFkm16UU9k1T1J6fOnG7ibZN9JDnjzkE1IqJwTWn7YVpDqWfppR%2FSZGVGl15f7cRugg%2BWrsfMxnTywXApeNtQfaRpFplWz9FV8XXErQ7Loi%2FwSxNI8AxRlkCCtjh5rBKo1xtUr7fMU8aTVLZcXAyiX%2FJuQ0kSLcBDokLB%2Fz8eIT3W2ANJRg2TFtUls1w9X8dtgFo3Cqe9xRaV8NE5PdtjiAbYJlh0POF0BHIUrG1aoi%2FyegZZE23WhaCz1j18nhZNlJtTWOK6hMSihda%2FTO40nMYOwz%2Bhj9SU80IxH2wrRw03uCZpkgwVs%2BJEJ99Oj%2FJvgW5jf%2FIdxgRQQQN%2BjF1wqqWIZWmyr4HE4seH6Cnclo5xHgbrAl42dKDSs%2ByJDvCINjl2KnLPcERQRkVNfE42LfBd9DmwTaV1AXdR7X%2F80wjjzxV6JK6ipjIyZOk5ztRYsW4U2eHeFzPwd8L83b1gOAT69Rp3%2FZCEcoWWnrmr0l%2ByDNYOx8yFVHVitj683xMbpeu12MSOlKWQ4rSp6f%2F3yOIdBs7HzMBDogIzGX3%2Fd33kqtYrRyuk9YKCNkyvrZNY8V922OO%2FlGYjI0Eun5sA6JTIBchHG%2BOVQYfUiQ6Ldl5WShd6UDzXdnJDA305%2FQD6lar3aHadRLPDFdX8Dtt0PPJ6NTpny6alEkYWfgz%2B0XgEyaV4Y8vjo%3D
URLs

http://chat5sqrnzqewampznybomgn4hf2m53tybkarxk4sfaktwt7oqpkcvyd.onion/gate.php?data=BslOjiEIZkRVoqiHQesLw22nJLk6PiQjNZ%2FryyiNELJPmXO%2FFDxIcmSMn7Zv2jjlY7F2%2BA5lBi49l4n8Zd868DuENNlzPxUMNszZ%2FTbaM4lC5VbeF2IEfDHwxuEwhXPdSvN9rlk%2BUmR94N3uLY8x%2BjbzKaRYegdhf87A4S2MfaQo%2BmjoSGxbKRn12OA1kS7xRqJj%2Bj1JI3Ja4f7nRIt2pkCZLPZtUC49Fs7K3ijaTfFcu2zeM0gQe0Hem%2FV05SnhYaAC70pvDD4Y8%2BzxI49goFSBT7hOTVpFQd3JxSjYYecwuhzMFi1UAjPh4%2B0unzmpRopUtD94G1x95uPtQ9UJ0FGAG7dLfC0rIsbjvw6Ic7p%2Bk0vdTGYSfGv0lsRx%2BRGiTr4M1nREUHQNxZvKL49gikq6K8IsKVBVQJDJxUTPMflson%2B%2BFGwFAj7Yxe0nvGO0Mbt%2B9xxjMiZoxOPcU4UdwkqkG%2BxpciQlZuDKzwOfffRusS31N2QOd2DPnbd9z2HGaLE4%2B1ZeFwY85MXlMIFkm16UU9k1T1J6fOnG7ibZN9JDnjzkE1IqJwTWn7YVpDqWfppR%2FSZGVGl15f7cRugg%2BWrsfMxnTywXApeNtQfaRpFplWz9FV8XXErQ7Loi%2FwSxNI8AxRlkCCtjh5rBKo1xtUr7fMU8aTVLZcXAyiX%2FJuQ0kSLcBDokLB%2Fz8eIT3W2ANJRg2TFtUls1w9X8dtgFo3Cqe9xRaV8NE5PdtjiAbYJlh0POF0BHIUrG1aoi%2FyegZZE23WhaCz1j18nhZNlJtTWOK6hMSihda%2FTO40nMYOwz%2Bhj9SU80IxH2wrRw03uCZpkgwVs%2BJEJ99Oj%2FJvgW5jf%2FIdxgRQQQN%2BjF1wqqWIZWmyr4HE4seH6Cnclo5xHgbrAl42dKDSs%2ByJDvCINjl2KnLPcERQRkVNfE42LfBd9DmwTaV1AXdR7X%2F80wjjzxV6JK6ipjIyZOk5ztRYsW4U2eHeFzPwd8L83b1gOAT69Rp3%2FZCEcoWWnrmr0l%2ByDNYOx8yFVHVitj683xMbpeu12MSOlKWQ4rSp6f%2F3yOIdBs7HzMBDogIzGX3%2Fd33kqtYrRyuk9YKCNkyvrZNY8V922OO%2FlGYjI0Eun5sA6JTIBchHG%2BOVQYfUiQ6Ldl5WShd6UDzXdnJDA305%2FQD6lar3aHadRLPDFdX8Dtt0PPJ6NTpny6alEkYWfgz%2B0XgEyaV4Y8vjo%3D

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

  • suricata: ET MALWARE Generic Request to gate.php Dotted-Quad

    suricata: ET MALWARE Generic Request to gate.php Dotted-Quad

  • suricata: ET MALWARE Trojan Generic - POST To gate.php with no accept headers

    suricata: ET MALWARE Trojan Generic - POST To gate.php with no accept headers

  • suricata: ET MALWARE Trojan Generic - POST To gate.php with no referer

    suricata: ET MALWARE Trojan Generic - POST To gate.php with no referer

  • suricata: ET MALWARE WIN32/KOVTER.B Checkin

    suricata: ET MALWARE WIN32/KOVTER.B Checkin

  • Drops desktop.ini file(s) 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 51 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1be90c72735d56e2f9ee9583d6bece1b9e6a78ecc475f08d6f133863b56256ea.exe
    "C:\Users\Admin\AppData\Local\Temp\1be90c72735d56e2f9ee9583d6bece1b9e6a78ecc475f08d6f133863b56256ea.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:2852
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3060
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3148
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2852-130-0x0000000000940000-0x0000000000951000-memory.dmp

    Filesize

    68KB

  • memory/2852-131-0x0000000000FC0000-0x0000000000FDF000-memory.dmp

    Filesize

    124KB