Overview

overview

10

Static

static

3c82be68f4...d5.exe

windows7_x64

10

3c82be68f4...d5.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    154s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-07-2022 07:13

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General

  • Target

    3c82be68f43f6c0a0dc4712002903240263bc82087c17c867911a232789c99d5.exe

  • Size

    508KB

  • MD5

    4e757c9f5b74820e93512cc4fcf9c3c0

  • SHA1

    a828e263a7e8a5154bb90614b49a4089695f7609

  • SHA256

    3c82be68f43f6c0a0dc4712002903240263bc82087c17c867911a232789c99d5

  • SHA512

    19c92c4d77be6ae1e5d028583a59ed344bf24a5db2a2d5d5b9d970f3e1c14a96eaf3c2f7097a6e1086ff177afc22561bad5fe807abee6bea5088e42d9fd978d0

Score
10/10
teslacryptpersistenceransomwaresuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1081944012-3634099177-1681222835-1000\_ReCoVeRy_+kisdd.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/77C6B0A49147ACB8 2 - http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/77C6B0A49147ACB8 3 - http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/77C6B0A49147ACB8 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/77C6B0A49147ACB8 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/77C6B0A49147ACB8 http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/77C6B0A49147ACB8 http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/77C6B0A49147ACB8 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/77C6B0A49147ACB8
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/77C6B0A49147ACB8

http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/77C6B0A49147ACB8

http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/77C6B0A49147ACB8

http://xlowfznrg4wf7dli.ONION/77C6B0A49147ACB8

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1081944012-3634099177-1681222835-1000\_ReCoVeRy_+kisdd.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> <!---1223-=2356---> 1 - <a href=http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/77C6B0A49147ACB8 target="_blank">http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/77C6B0A49147ACB8</a> <br> <!------1223-=2356 --> 2 - <a href=http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/77C6B0A49147ACB8 target="_blank">http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/77C6B0A49147ACB8</a> <br> <!------1223-=2356 --> 3 - <a href=http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/77C6B0A49147ACB8 target="_blank">http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/77C6B0A49147ACB8</a> <br> <!------1223-=2356 --></div><br><div class="tb" style="font-size:13px; border-color:#880000;"><b>If for some reasons the <!-----1223-=2356 --> addresses are not available, <!------1223-=2356 --> follow these steps:</b> <hr> 1 - <!------1223-=2356 --> Download and <!------1223-=2356 --> 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 - <!---1223-=2356 --> Af<!---1223-=2356--->ter a<!---1223-=2356---> succe<!---1223-=2356--->ssful<!------1223-=2356 --> instal<!---1223-=2356--->lation, run the br<!---1223-=2356--->owser and w<!---1223-=2356--->ait for initi<!---1223-=2356--->alization.<br> 3 - <!--- 1223-=2356 --> Ty<!---1223-=2356--->pe<!-- 1223-=2356 --> in<!-- 1223-=2356 --> the t<!---1223-=2356--->or-bro<!---1223-=2356--->wser<!-- 1223-=2356 --> add<!---1223-=2356--->ress<!-- 1223-=2356 --> bar: <font style="font-weight:bold; color:#009977;"><!-- 1223-=2356 -->xlowfznrg4wf7dli.onion/77C6B0A49147ACB8<!-- 1223-=2356 --></font><!-- 1223-=2356 --><br> 4 - <!--- 1223-=2356 --> Fol<!---1223-=2356--->low the instr<!---1223-=2356--->uctions <!-- 1223-=2356 --> on the site.</div><br><br><b>!!! IMPO<!---1223-=2356--->RTANT INFO<!---1223-=2356--->RMATION:</b><br> <!-----1223-=2356 --><div class="tb" style="width:790px;"><!-----1223-=2356 --> Yo<!---1223-=2356--->ur Pers<!---1223-=2356--->onal PAGES<b>: <br> <a href=http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/77C6B0A49147ACB8 target="_blank">http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/77C6B0A49147ACB8</a> <br><a href=http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/77C6B0A49147ACB8 target="_blank">http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/77C6B0A49147ACB8</a> <br> <!-----1223-=2356 --><a href=http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/77C6B0A49147ACB8 target="_blank">http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/77C6B0A49147ACB8</a> <br> <!-----1223-=2356 --> Your <!------1223-=2356 --> Personal TOR-Browser<!-----1223-=2356 --> page : <!-----1223-=2356 --><font style="font-weight:bold; color:#009977;"><!-- 1223-=2356 -->xlowfznrg4wf7dli.onion/77C6B0A49147ACB8<!-- 1223-=2356 --></font><br> <!-----1223-=2356 --> Your personal <!------1223-=2356 --> ID <!-----1223-=2356 --> (if you open <!------1223-=2356 --> the site directly): <!-----1223-=2356 --> <font style="font-weight:bold; color:#770000;">77C6B0A49147ACB8</font><br> </div></div></center></body></html>

Signatures

  • TeslaCrypt, AlphaCrypt

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

    ransomwareteslacrypt
  • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Executes dropped EXE 1 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
    persistence
  • 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 8 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c82be68f43f6c0a0dc4712002903240263bc82087c17c867911a232789c99d5.exe
    "C:\Users\Admin\AppData\Local\Temp\3c82be68f43f6c0a0dc4712002903240263bc82087c17c867911a232789c99d5.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4300
    • C:\Windows\tmyfkbxngqfn.exe
      C:\Windows\tmyfkbxngqfn.exe
      2⤵
      • 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:4664
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3108
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\3C82BE~1.EXE
      2⤵
        PID:448
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4588

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\tmyfkbxngqfn.exe
      Filesize

      508KB

      MD5

      4e757c9f5b74820e93512cc4fcf9c3c0

      SHA1

      a828e263a7e8a5154bb90614b49a4089695f7609

      SHA256

      3c82be68f43f6c0a0dc4712002903240263bc82087c17c867911a232789c99d5

      SHA512

      19c92c4d77be6ae1e5d028583a59ed344bf24a5db2a2d5d5b9d970f3e1c14a96eaf3c2f7097a6e1086ff177afc22561bad5fe807abee6bea5088e42d9fd978d0

      Download Submit

    • C:\Windows\tmyfkbxngqfn.exe
      Filesize

      508KB

      MD5

      4e757c9f5b74820e93512cc4fcf9c3c0

      SHA1

      a828e263a7e8a5154bb90614b49a4089695f7609

      SHA256

      3c82be68f43f6c0a0dc4712002903240263bc82087c17c867911a232789c99d5

      SHA512

      19c92c4d77be6ae1e5d028583a59ed344bf24a5db2a2d5d5b9d970f3e1c14a96eaf3c2f7097a6e1086ff177afc22561bad5fe807abee6bea5088e42d9fd978d0

      Download Submit

    • memory/448-143-0x0000000000000000-mapping.dmp

      Download

    • memory/3108-145-0x0000000000000000-mapping.dmp

      Download

    • memory/4300-130-0x0000000002270000-0x00000000022F6000-memory.dmp

      Filesize

      536KB

      Download

    • memory/4300-131-0x0000000000400000-0x00000000004D1000-memory.dmp

      Filesize

      836KB

      Download

    • memory/4300-144-0x0000000002270000-0x00000000022F6000-memory.dmp

      Filesize

      536KB

      Download

    • memory/4664-135-0x0000000000000000-mapping.dmp

      Download

    • memory/4664-142-0x00000000021B0000-0x0000000002236000-memory.dmp

      Filesize

      536KB

      Download