General

  • Target

    enc.exe

  • Size

    156KB

  • Sample

    220121-nhqtwscgbj

  • MD5

    14ee62fcc9163509856671400429ad55

  • SHA1

    7544332b52769ca853d900669ef5e272a2ae1665

  • SHA256

    699159e695e230a48d94b6103b48940ed596d0b48fb6d936c04d86eed539cecd

  • SHA512

    4d71c87be6f6ad7c9f3277b60850cd7136cecfd5f15621d1e56b1897008da8cc742578112ea955f8417c8d4cf13bcfb92e7ceafb34720017b47d81c4d2603bff

Malware Config

Extracted

Path

C:\Documents and Settings\WANNA_RECOVER_KOXIC_FILEZ_GWOFW.txt

Ransom Note
--=== Hello. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. All sensitive information also leaked. 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 send sample to us to 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 contact us? [+] You have two ways: 1) [Recommended] Using an email Just write us an email to wilhelmkox@tutanota.com 2) Quick contact with us or if you will not receive our letters download qTox and ADD our TOXID: F3C777D22A0686055A3558917315676D607026B680DA5C8D3D4D887017A2A844F546AE59F59F How to download QTOX: - https://tox.chat/download.html - https://github.com/qTox/qTox/releases/download/v1.17.3/setup-qtox-x86_64-release.exe Add our mails to contacts so as not to lose letters from us. Check your spam sometimes, our emails may get there. [+] Consequences if we do not find a common language [+] 1. The data were irretrievably lost. 2. Leaked data will be published or sold on blmarket (or to competitors). 3. In some cases, DDOS attacks will be applied to your inftastructure. !!! 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 UserID: 3CAAD560B9DD8BEA42D45863345B4FA3DFA1A4F158B1121D8B7364B60DEA6C28F64C2C3992975FFA26AE951BFA7EB56233C4A305A31F00909BD391B2569A841E77CB66EDF70C17F16631B154FC20D29BF2678AC751A5E6A2CF37ECA4E16B69C45FF1930E7DD73A17B284A9A64DFC64ADEB4D12D23A94FF5E2D57C4C923569CD9D15FD516EE37C068451B9A160C48A5AF452CBA532519BC6C27F1744BAF6D9A550AAB17B955BEC2AAF0B5DAD4DE192EE381087B8B18184F17A74F9BB3D735E026523B5AA1DBE35253A3637FDCC82E3B72643F539E73DD6DBE51A45FFA83E7A9A796463543D6850D860087F0E695DBDF7C6CB1011F4F0AC2A9BA26F0249D7696343082010A0282010100DF0C314434C1F9DC94B20FCB2448958BD49FD799BAFBAE622B3E4C6004DF9C47D5F6B817A80C8E1357E5352DADE7FD6AA10425BCB59594B06840486FA8861B0A5E1FC7E08DBB6A25D2074DEF5123BD6D7AAC7FA7A698BB93BC029B003F97F0840AC8387F75C8CE647F0AC559676F649321EEC5CFB47D5BA888130F90B051529EAAFB1E7BB1B49FA30EBDE6B06ABAFBB259DE780C8A2F540BDF0AD494501D1CC6A2864B601E47023C01A17B2D7D0251537F95C053B065A06C17A2B29EB4FB2D8DB15B6FCA52622BB136097BE9B1000F366AB73F81F83BD6C0F51391C37AE304F22B2DB861C95B42A1C12C371A4A547BFD3A5CA745EBC52E35538CC6CE493F2E31020301000194C3F43FF33E4E09FD6A544B8451758347574F4657
Emails

wilhelmkox@tutanota.com

URLs

https://tox.chat/download.html

https://github.com/qTox/qTox/releases/download/v1.17.3/setup-qtox-x86_64-release.exe

Extracted

Path

C:\Documents and Settings\WANNA_RECOVER_KOXIC_FILEZ_MRTTA.txt

Ransom Note
--=== Hello. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. All sensitive information also leaked. 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 send sample to us to 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 contact us? [+] You have two ways: 1) [Recommended] Using an email Just write us an email to wilhelmkox@tutanota.com 2) Quick contact with us or if you will not receive our letters download qTox and ADD our TOXID: F3C777D22A0686055A3558917315676D607026B680DA5C8D3D4D887017A2A844F546AE59F59F How to download QTOX: - https://tox.chat/download.html - https://github.com/qTox/qTox/releases/download/v1.17.3/setup-qtox-x86_64-release.exe Add our mails to contacts so as not to lose letters from us. Check your spam sometimes, our emails may get there. [+] Consequences if we do not find a common language [+] 1. The data were irretrievably lost. 2. Leaked data will be published or sold on blmarket (or to competitors). 3. In some cases, DDOS attacks will be applied to your inftastructure. !!! 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 UserID: 3A98C964D38DDD2DAC186F99426E84A88CDB52932837E560A66C729B28A17E3459348400F01D8A014B07FC40DFDF279BACC044D6F10E834B2C775FE86064AE2C45E8497551705FD88DCD0A2C7B619EB0BAB3483B9E5007DF07D5665392F98DEBF2D2B138031744B5F3B5E44BAAD976AC70FB8325A56E8F03ABECBA7D5C8F3914BB665BFCDCE5736B2EB185E4C31C15222BEADFC11833D1D81828D4F423450A129A4B04073A631BD03C214193776A1BADE21B57C620CF9F1F46FECA225131F78A1B17CE28B9C93BDEA7105B3EFCA5844B380F9CDC2FC5F291668A0B0140915D05CF7C9DFC7E3D25C74AE64C2D44B933056E23BA35EEC3165910F7A1F2435FCBED3082010A0282010100C3D725BFC5BA5120D1A121F2BD9803D86802A660AF3F5D048D187F56D3CFA3A9A688A40AE8A9F289556D3C9C549C27BCDBD0DBEB05A86A49C9F303845E6915BE89271EA53C04906870A37E356BD987C95BAC6D3BE981BF9C2D4533A8E5157F91620138F3E1E20CC6EC1BA41E5D04E863CAE5DA17D16CBEB7DD33E5E0E587875C4A04BE18A8F168BC3BCA3308E5699D4A58AB9A3ED5A54FC9594DD263C2A331EDB57C185ABF14CF84DC0250276FC1D983D7F9296C68702314BCF5FE6D4B927A12817B88124E093B1922DB80930AE12675E563936A3A44E5B77481A89A5C70926466AB137521E3C6449E4C03FE0806895F339E4F47EACC9FB503D16FF0B86F60E90203010001E165A86C174F7DF5EC2043486D5A44D04D52545441
Emails

wilhelmkox@tutanota.com

URLs

https://tox.chat/download.html

https://github.com/qTox/qTox/releases/download/v1.17.3/setup-qtox-x86_64-release.exe

Targets

    • Target

      enc.exe

    • Size

      156KB

    • MD5

      14ee62fcc9163509856671400429ad55

    • SHA1

      7544332b52769ca853d900669ef5e272a2ae1665

    • SHA256

      699159e695e230a48d94b6103b48940ed596d0b48fb6d936c04d86eed539cecd

    • SHA512

      4d71c87be6f6ad7c9f3277b60850cd7136cecfd5f15621d1e56b1897008da8cc742578112ea955f8417c8d4cf13bcfb92e7ceafb34720017b47d81c4d2603bff

    • Koxic

      A C++ written ransomware first seen in late 2021.

    • Modifies Windows Defender Real-time Protection settings

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Disables taskbar notifications via registry modification

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Deletes itself

    • Windows security modification

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Persistence

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

2
T1089

File Deletion

2
T1107

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Impact

Inhibit System Recovery

2
T1490

Tasks