Analysis

  • max time kernel
    152s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    07-07-2022 11:46

General

  • Target

    457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c.exe

  • Size

    352KB

  • MD5

    1326d2b63d8846f40cddb4971ac57782

  • SHA1

    a023a792e93e936dd0b297fdf680fb429e46ee41

  • SHA256

    457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c

  • SHA512

    56b2f907e45ec0418436430090807b12c7fde920a8cd3f065a08f18208b5be92af64bdb56069973996933dcb57e1ac7f123e724b71e71b7dad4894047f9089ca

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2632097139-1792035885-811742494-1000\_ReCoVeRy_+rvrau.txt

Family

teslacrypt

Ransom Note
NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA4096 Key , both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1 - http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/FD26DACA73588999 2 - http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/FD26DACA73588999 3 - http://yyre45dbvn2nhbefbmh.begumvelic.at/FD26DACA73588999 If for some reasons the addresses are not available, follow these steps: 1 - Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2 - After a successful installation, run the browser 3 - Type in the address bar: xlowfznrg4wf7dli.onion/FD26DACA73588999 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/FD26DACA73588999 http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/FD26DACA73588999 http://yyre45dbvn2nhbefbmh.begumvelic.at/FD26DACA73588999 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/FD26DACA73588999
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/FD26DACA73588999

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/FD26DACA73588999

http://yyre45dbvn2nhbefbmh.begumvelic.at/FD26DACA73588999

http://xlowfznrg4wf7dli.ONION/FD26DACA73588999

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2632097139-1792035885-811742494-1000\_ReCoVeRy_+rvrau.html

Ransom Note
<html> <style>a { color:green; }.tb { background:white; border-style:solid; border-width:1px; padding:3px; border-color:lime; } .ttl { font-size:13px; color:880000; }</style><body style="background:#33CCFF;"> <center> <div style="text-align:left; font-family:Arial; <!---4231213423142134231421342341234 --> font-size:13px; line-height:20px; margin-top:10px; width:800px; background:#F4F4F4; padding:20px; border-style:solid; border-width:5px; border-color:#BABABA;"> <b><font class="ttl"><center><b>NOT YOUR LANGUAGE? USE <a href="https://translate.google.com" target="_blank">Google Translate</a></b></center> What<!------4231213423142134231421342341234 --> happened <!------4231213423142134231421342341234 --> to your<!------4231213423142134231421342341234 --> files?</b></font><br> <font style="font-size:13px;">All <!------4231213423142134231421342341234 -->of your files<!------4231213423142134231421342341234 --> were <!------4231213423142134231421342341234 --> protected by a strong<!------4231213423142134231421342341234 --> encr<!---4231213423142134231421342341234 -->yption wi<!---4231213423142134231421342341234 -->th <!------4231213423142134231421342341234 -->RSA4096 <!------4231213423142134231421342341234 --> <br> More <!------4231213423142134231421342341234 --> information about the <!------4231213423142134231421342341234 -->encryption RSA4096 can be<!------4231213423142134231421342341234 --> fou<!---4231213423142134231421342341234 -->nd <a href= http://en.wikipedia.org/wiki/RSA_(cryptosystem) target="_blank"> htt<!--4231213423142134231421342341234 -->ps:<!--4231213423142134231421342341234 -->//en<!--4231213423142134231421342341234 -->.w<!--4231213423142134231421342341234 -->ikipedia<!--4231213423142134231421342341234 -->.<!--4231213423142134231421342341234 -->org/wiki/RSA_(cry<!--4231213423142134231421342341234 -->ptosystem) </a><br></font> <br><b><font class="ttl">Wh<!--4231213423142134231421342341234 -->at <!------4231213423142134231421342341234 --> does th<!--4231213423142134231421342341234 -->is mean?</b></font><br><font style="font-size:13px;"> T<!--4231213423142134231421342341234 -->his<!------4231213423142134231421342341234 --> mea<!--4231213423142134231421342341234 -->ns that the <!------4231213423142134231421342341234 --> str<!--4231213423142134231421342341234 -->ucture and da<!--4231213423142134231421342341234 -->ta wi<!--4231213423142134231421342341234 -->thin your <!------4231213423142134231421342341234 -->files ha<!--4231213423142134231421342341234 -->ve be<!--4231213423142134231421342341234 -->en<!------4231213423142134231421342341234 --> irre<!--4231213423142134231421342341234 -->voca<!--4231213423142134231421342341234 -->bly changed, you will not be able work wi<!--4231213423142134231421342341234 -->th them, read<!------4231213423142134231421342341234 --> th<!--4231213423142134231421342341234 -->em or see them, <!------4231213423142134231421342341234 -->it is the s<!--4231213423142134231421342341234 -->ame thing <!------4231213423142134231421342341234 -->as los<!--4231213423142134231421342341234 -->ing <!------4231213423142134231421342341234 -->them for<!--4231213423142134231421342341234 -->ever, but with our he<!--4231213423142134231421342341234 -->lp, you <!------4231213423142134231421342341234 --> can re<!--4231213423142134231421342341234 -->st<!--4231213423142134231421342341234 -->ore t<!--4231213423142134231421342341234 -->hem <br><br><b><font class="ttl"><!------4231213423142134231421342341234 -->Ho<!--4231213423142134231421342341234 -->w d<!--4231213423142134231421342341234 -->id th<!--4231213423142134231421342341234 -->is hap<!--4231213423142134231421342341234 -->pen?<!------4231213423142134231421342341234 --></b></font> <br> <!------4231213423142134231421342341234 --> <font style="font-size:13px;"><!------4231213423142134231421342341234 --> Espec<!--4231213423142134231421342341234 -->ially for y<!--4231213423142134231421342341234 -->ou,<!------4231213423142134231421342341234 --> on our SER<!--4231213423142134231421342341234 -->VER <!------4231213423142134231421342341234 -->was gene<!--4231213423142134231421342341234 -->rated <!------4231213423142134231421342341234 -->the sec<!--4231213423142134231421342341234 -->ret k<!--4231213423142134231421342341234 -->ey <br>Al<!--4231213423142134231421342341234-->l y<!--4231213423142134231421342341234-->our <!------4231213423142134231421342341234 --> files w<!--4231213423142134231421342341234-->ere encry<!--4231213423142134231421342341234-->pted with the p<!--4231213423142134231421342341234-->ublic k<!--4231213423142134231421342341234-->ey, <!------4231213423142134231421342341234 --> wh<!--4231213423142134231421342341234-->ich has b<!--4231213423142134231421342341234-->een <!------4231213423142134231421342341234 --> trans<!--4231213423142134231421342341234-->ferred to <!------4231213423142134231421342341234 -->y<!--4231213423142134231421342341234-->our co<!--4231213423142134231421342341234-->mputer via <!------4231213423142134231421342341234 -->the Inter<!--4231213423142134231421342341234-->net.<!--4231213423142134231421342341234--><br> <!------4231213423142134231421342341234 --> Decr<!--4231213423142134231421342341234-->ypting of <!------4231213423142134231421342341234 -->YO<!--4231213423142134231421342341234-->UR FI<!--4231213423142134231421342341234-->LES is <!--4231213423142134231421342341234 -->on<!--4231213423142134231421342341234 -->ly p<!--4231213423142134231421342341234 -->oss<!--4231213423142134231421342341234-->ible <!--- -4231213423142134231421342341234 -->w<!--4231213423142134231421342341234 -->ith the he<!--4231213423142134231421342341234-->lp of t<!--4231213423142134231421342341234 -->he <!----4231213423142134231421342341234 -->pri<!--4231213423142134231421342341234-->va<!--4231213423142134231421342341234 -->te k<!--4231213423142134231421342341234-->ey a<!--4231213423142134231421342341234 -->nd <!--4231213423142134231421342341234 -->d<!--4231213423142134231421342341234 -->ecr<!--4231213423142134231421342341234-->ypt p<!--4231213423142134231421342341234 -->rog<!--4231213423142134231421342341234-->ram <!--4231213423142134231421342341234 -->wh<!--4231213423142134231421342341234-->ich is on our <!--- -4231213423142134231421342341234 -->Sec<!--4231213423142134231421342341234-->ret <!--4231213423142134231421342341234 -->Ser<!--4231213423142134231421342341234-->ver!!! </font><br><br><b><font class="ttl">Wh<!--4231213423142134231421342341234-->at do I do?</b></font> <br><font style="font-size:13px;">Alas, if you <!--4231213423142134231421342341234 --> do not take <!---4231213423142134231421342341234 --> the nece<!--4231213423142134231421342341234-->ssary meas<!--4231213423142134231421342341234-->ures <!--4231213423142134231421342341234-->for the spec<!--4231213423142134231421342341234-->ified ti<!--4231213423142134231421342341234-->me th<!--4231213423142134231421342341234-->en t<!--4231213423142134231421342341234-->he co<!--4231213423142134231421342341234-->nditions fo<!--4231213423142134231421342341234-->r obta<!--4231213423142134231421342341234-->ining the priv<!--4231213423142134231421342341234-->ate ke<!--4231213423142134231421342341234-->y w<!--4231213423142134231421342341234-->ill be cha<!--4231213423142134231421342341234-->nged<!--- 4231213423142134231421342341234 --> <br> <!-----4231213423142134231421342341234 --> If you really need <!------4231213423142134231421342341234 --> your data, <!------4231213423142134231421342341234 -->then we suggest you <!------4231213423142134231421342341234 --> do not waste<!------4231213423142134231421342341234 --> valuable <!------4231213423142134231421342341234 --> time searching <!------4231213423142134231421342341234 -->for other <!------4231213423142134231421342341234 --> solutions <!------4231213423142134231421342341234 -->becausen <!----4231213423142134231421342341234 --> they do not exist.</font><br><br> <!----4231213423142134231421342341234 --><div class="tb" style="color:#880000; font-size:13px; border-width:3px;">For more specific instructions, please<!------4231213423142134231421342341234 --> visit your <!------4231213423142134231421342341234 --> personal <!------4231213423142134231421342341234 -->home page,<!------4231213423142134231421342341234 --> there are<!------4231213423142134231421342341234 --> a few <!------4231213423142134231421342341234 -->different <!------4231213423142134231421342341234 -->addresses<!------4231213423142134231421342341234 --> pointing to <!------4231213423142134231421342341234 --> your page<!------4231213423142134231421342341234 --> below:<b><hr> <!---000==-=-==-=-=-=-=-=-=---> 1 - <a href=http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/FD26DACA73588999 target="_blank">http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/FD26DACA73588999</a> <br> <!------000==-=-==-=-=-=-=-=-= --> 2 - <a href=http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/FD26DACA73588999 target="_blank">http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/FD26DACA73588999</a> <br> <!------000==-=-==-=-=-=-=-=-= --> 3 - <a href=http://yyre45dbvn2nhbefbmh.begumvelic.at/FD26DACA73588999 target="_blank">http://yyre45dbvn2nhbefbmh.begumvelic.at/FD26DACA73588999</a> <br> <!------000==-=-==-=-=-=-=-=-= --></div><br><div class="tb" style="font-size:13px; border-color:#880000;"><b>If for some reasons the <!-----000==-=-==-=-=-=-=-=-= --> addresses are not available, <!------000==-=-==-=-=-=-=-=-= --> follow these steps:</b> <hr> 1 - <!------000==-=-==-=-=-=-=-=-= --> Download and <!------000==-=-==-=-=-=-=-=-= --> install tor-browser: <a href=http://www.torproject.org/projects/torbrowser.html.en target="_blank">http://www.torproject.org/projects/torbrowser.html.en</a><br> 2 - <!---000==-=-==-=-=-=-=-=-= --> Af<!---000==-=-==-=-=-=-=-=-=--->ter a<!---000==-=-==-=-=-=-=-=-=---> succe<!---000==-=-==-=-=-=-=-=-=--->ssful<!------000==-=-==-=-=-=-=-=-= --> instal<!---000==-=-==-=-=-=-=-=-=--->lation, run the br<!---000==-=-==-=-=-=-=-=-=--->owser and w<!---000==-=-==-=-=-=-=-=-=--->ait for initi<!---000==-=-==-=-=-=-=-=-=--->alization.<br> 3 - <!--- 000==-=-==-=-=-=-=-=-= --> Ty<!---000==-=-==-=-=-=-=-=-=--->pe<!-- 000==-=-==-=-=-=-=-=-= --> in<!-- 000==-=-==-=-=-=-=-=-= --> the t<!---000==-=-==-=-=-=-=-=-=--->or-bro<!---000==-=-==-=-=-=-=-=-=--->wser<!-- 000==-=-==-=-=-=-=-=-= --> add<!---000==-=-==-=-=-=-=-=-=--->ress<!-- 000==-=-==-=-=-=-=-=-= --> bar: <font style="font-weight:bold; color:#009977;"><!-- 000==-=-==-=-=-=-=-=-= -->xlowfznrg4wf7dli.onion/FD26DACA73588999<!-- 000==-=-==-=-=-=-=-=-= --></font><!-- 000==-=-==-=-=-=-=-=-= --><br> 4 - <!--- 000==-=-==-=-=-=-=-=-= --> Fol<!---000==-=-==-=-=-=-=-=-=--->low the instr<!---000==-=-==-=-=-=-=-=-=--->uctions <!-- 000==-=-==-=-=-=-=-=-= --> on the site.</div><br><br><b>!!! IMPO<!---000==-=-==-=-=-=-=-=-=--->RTANT INFO<!---000==-=-==-=-=-=-=-=-=--->RMATION:</b><br> <!-----000==-=-==-=-=-=-=-=-= --><div class="tb" style="width:790px;"><!-----000==-=-==-=-=-=-=-=-= --> Yo<!---000==-=-==-=-=-=-=-=-=--->ur Pers<!---000==-=-==-=-=-=-=-=-=--->onal PAGES<b>: <br> <a href=http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/FD26DACA73588999 target="_blank">http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/FD26DACA73588999</a> <br><a href=http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/FD26DACA73588999 target="_blank">http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/FD26DACA73588999</a> <br> <!-----000==-=-==-=-=-=-=-=-= --><a href=http://yyre45dbvn2nhbefbmh.begumvelic.at/FD26DACA73588999 target="_blank">http://yyre45dbvn2nhbefbmh.begumvelic.at/FD26DACA73588999</a> <br> <!-----000==-=-==-=-=-=-=-=-= --> Your <!------000==-=-==-=-=-=-=-=-= --> Personal TOR-Browser<!-----000==-=-==-=-=-=-=-=-= --> page : <!-----000==-=-==-=-=-=-=-=-= --><font style="font-weight:bold; color:#009977;"><!-- 000==-=-==-=-=-=-=-=-= -->xlowfznrg4wf7dli.onion/FD26DACA73588999<!-- 000==-=-==-=-=-=-=-=-= --></font><br> <!-----000==-=-==-=-=-=-=-=-= --> Your personal <!------000==-=-==-=-=-=-=-=-= --> ID <!-----000==-=-==-=-=-=-=-=-= --> (if you open <!------000==-=-==-=-=-=-=-=-= --> the site directly): <!-----000==-=-==-=-=-=-=-=-= --> <font style="font-weight:bold; color:#770000;">FD26DACA73588999</font><br> </div></div></center></body></html>

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

  • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c.exe
    "C:\Users\Admin\AppData\Local\Temp\457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Users\Admin\AppData\Local\Temp\457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c.exe
      "C:\Users\Admin\AppData\Local\Temp\457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2676
      • C:\Windows\mxsywmbppxkm.exe
        C:\Windows\mxsywmbppxkm.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2608
        • C:\Windows\mxsywmbppxkm.exe
          C:\Windows\mxsywmbppxkm.exe
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:3780
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:716
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\457D3D~1.EXE
        3⤵
          PID:2228
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3016

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\mxsywmbppxkm.exe

      Filesize

      352KB

      MD5

      1326d2b63d8846f40cddb4971ac57782

      SHA1

      a023a792e93e936dd0b297fdf680fb429e46ee41

      SHA256

      457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c

      SHA512

      56b2f907e45ec0418436430090807b12c7fde920a8cd3f065a08f18208b5be92af64bdb56069973996933dcb57e1ac7f123e724b71e71b7dad4894047f9089ca

    • C:\Windows\mxsywmbppxkm.exe

      Filesize

      352KB

      MD5

      1326d2b63d8846f40cddb4971ac57782

      SHA1

      a023a792e93e936dd0b297fdf680fb429e46ee41

      SHA256

      457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c

      SHA512

      56b2f907e45ec0418436430090807b12c7fde920a8cd3f065a08f18208b5be92af64bdb56069973996933dcb57e1ac7f123e724b71e71b7dad4894047f9089ca

    • C:\Windows\mxsywmbppxkm.exe

      Filesize

      352KB

      MD5

      1326d2b63d8846f40cddb4971ac57782

      SHA1

      a023a792e93e936dd0b297fdf680fb429e46ee41

      SHA256

      457d3ded5e8d1dc1c49cf468c03743735c05fb0e7bea643380c5f9e02064f67c

      SHA512

      56b2f907e45ec0418436430090807b12c7fde920a8cd3f065a08f18208b5be92af64bdb56069973996933dcb57e1ac7f123e724b71e71b7dad4894047f9089ca

    • memory/716-149-0x0000000000000000-mapping.dmp

    • memory/2228-141-0x0000000000000000-mapping.dmp

    • memory/2608-138-0x0000000000000000-mapping.dmp

    • memory/2676-134-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/2676-137-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/2676-136-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/2676-133-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/2676-142-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/2676-132-0x0000000000000000-mapping.dmp

    • memory/2904-135-0x0000000000630000-0x0000000000634000-memory.dmp

      Filesize

      16KB

    • memory/2904-130-0x0000000000630000-0x0000000000634000-memory.dmp

      Filesize

      16KB

    • memory/2904-131-0x0000000000630000-0x0000000000634000-memory.dmp

      Filesize

      16KB

    • memory/3780-143-0x0000000000000000-mapping.dmp

    • memory/3780-146-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3780-147-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3780-148-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB