Resubmissions

23-08-2021 11:05

210823-nrkcshgr2x 10

26-07-2021 12:42

210726-26nlz7zsf2 10

Analysis

  • max time kernel
    149s
  • max time network
    163s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    26-07-2021 12:42

General

  • Target

    0d7f296d0b7ad462d55d49c374ef271f5898c3487192bff7b157942280b876b6.sample.exe

  • Size

    161KB

  • MD5

    98164254301c7670ce8466d7f488608d

  • SHA1

    ce0f5b0b1cf7d5c63848b4c7af1cf4de895e672d

  • SHA256

    0d7f296d0b7ad462d55d49c374ef271f5898c3487192bff7b157942280b876b6

  • SHA512

    39fbf256eae87be00ea51f59ef259f541f53c607cb67479cf3068cf3aeb9119fbf86555027c1e4c895458693fd1b990990088a7d35c1c9f5ffdb7a74a6197621

Malware Config

Extracted

Path

C:\ltl88-readme.txt

Family

sodinokibi

Ransom Note
---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on you computer has expansion ltl88. 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 one file 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 have two ways: 1) [Recommended] Using a TOR browser! a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website: http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/2A9AD7F31BCC9C8F 2) If TOR blocked in your country, try to use VPN! But you can use our secondary website. For this: a) Open your any browser (Chrome, Firefox, Opera, IE, Edge) b) Open our secondary website: http://decryptor.top/2A9AD7F31BCC9C8F Warning: secondary website can be blocked, thats why first variant much better and more available. When you open our website, put the following data in the input form: Key: pnkcXyGH5fb+8BylpYtfzQeuxqNxJVcSZuPH+1ADJzIBCIIzoJ2Mzo+NOPktvmxg HTZ62mf4bCMt8vYARFlB2kCM9wEWu/32WoH44BJ2rSMmbMGVQnO8CVLBO11pzAM4 kQt37m3EE0KI9YQQqtVTLOPHA/QnOz/0ciigAu2y19pEwIh5bD6JZ0kOiJjpighf EpCI7yq9v/VDo1A5KY4RiMcd1Xp4e90esydX/j+BH3it65/32/jsfsXa4oebJGav igpQuEVfto738CnPNB5R7H0DNgqRkdwf5kKcV7pwbol6clbwb5CIUk7QvdUFLm22 x5wbyFaMBJvHElImAxlIHgHJK8J/Z1S5SELLYENS67CDEt2VZwqmLIJA7h3JptwN 1FRWIzLbpjqv51nJ4nXp0xVC/Q/X0v2h5OvejUFezBNtigy4EmT6bABaDQdnWd7b 7wvnmI76tIvY/Av/lAK6kjqovfAUNNGZUwigm3NgD6+6eYGC0ch0Nujbnd8GB9vi 8/lJN5oFncJJdHganwLhI1A+YwZG/vcqXW0OKbUUcy34b0T+g0/UjEGv192SQjKF 7/KCerCU+IMTBXwnJevyOEhzvpENtvzVlfrUElxbXrUc2f9MvYRNOCg0lzcdMQ3+ ymcytc+nQe1nXygawqgPPVCW9hZzZXjFN1iGzyw54IkDh1vAZ/TPD5cchBalwcAA CfceXbEKTehgAuve2C4c/1D3HdtGdVnySEk6F/gFmVcpcYGMCLmlg5FbVx8PUAZv p5aQgjn/NYyUbs0JDqukrEXbT+IqF6wDw582+Pa1rWUIkQgeOwyZ2tJ5g/b+NTe8 zisJBdOr5eeVC2ADHJsnke76qanO6LP5C2sPwj2BDuyCGY4Ca50JV9Ou5iEyovIU jn8D7ARG0Odxb113mlDugZQU85IegMqu6KkocW0lLgx9cfe2bjjDcGvyYSD7KZXm 8pRQ1YfJmk4CZ8yse8DURk+UG6gG+OGqeH/1VzNdGNtEgYllp0vEpkZGw5Hc0JqR UFYfNa5uk5B8W6PeGbIBg63EOzpoHTEP261TUrqOUCLR6Y7R3imwC2z80dTtICRt YpZBsN/lnH+GKP3gMbHRAl0tnVJsJLkrFdi2yAvvZjyIjUETd+LiWw== Extension name: ltl88 ----------------------------------------------------------------------------------------- !!! 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. !!! !!! !!!
URLs

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/2A9AD7F31BCC9C8F

http://decryptor.top/2A9AD7F31BCC9C8F

Signatures

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • suricata: ET MALWARE Known Sinkhole Response Header
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 12 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.

  • Enumerates connected drives 3 TTPs 25 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 31 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d7f296d0b7ad462d55d49c374ef271f5898c3487192bff7b157942280b876b6.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\0d7f296d0b7ad462d55d49c374ef271f5898c3487192bff7b157942280b876b6.sample.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2184
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin.exe Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:744
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/744-120-0x0000000000000000-mapping.dmp
  • memory/2016-114-0x0000000000910000-0x000000000091A000-memory.dmp
    Filesize

    40KB

  • memory/2016-115-0x0000000000920000-0x0000000000921000-memory.dmp
    Filesize

    4KB

  • memory/2016-117-0x0000000000B00000-0x0000000000B01000-memory.dmp
    Filesize

    4KB

  • memory/2016-116-0x0000000000AB0000-0x0000000000AB1000-memory.dmp
    Filesize

    4KB

  • memory/2016-118-0x0000000000B10000-0x0000000000B16000-memory.dmp
    Filesize

    24KB

  • memory/2184-119-0x0000000000000000-mapping.dmp