Overview

overview

10

Static

static

4f55af179a...ed.exe

windows7-x64

10

4f55af179a...ed.exe

windows10-2004-x64

3

Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    20/07/2022, 02:23

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General

  • Target

    4f55af179a86bc2f91549e275d0c6168ae6a741895ca1c6256e6e747b3da5eed.exe

  • Size

    405KB

  • MD5

    121f8ff33ade92b1bfe147f8ed50e2a2

  • SHA1

    176ba5972f93a0da53d7ecb8c1d7412574c5b462

  • SHA256

    4f55af179a86bc2f91549e275d0c6168ae6a741895ca1c6256e6e747b3da5eed

  • SHA512

    664021c72e12ff5b30799f01c0834017b5f84b10ba3224fd2e6120bb236a34382e8a9325dbfc978342b73ebae15a9075018cb52cfda0d2964967713975aaa17c

Score
10/10
teslacryptpersistenceransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\_ReCoVeRy_+qgldo.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/6144FC49CB41ACB 2 - http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/6144FC49CB41ACB 3 - http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/6144FC49CB41ACB 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/6144FC49CB41ACB 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6144FC49CB41ACB http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/6144FC49CB41ACB http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/6144FC49CB41ACB Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/6144FC49CB41ACB
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6144FC49CB41ACB

http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/6144FC49CB41ACB

http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/6144FC49CB41ACB

http://xlowfznrg4wf7dli.ONION/6144FC49CB41ACB

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\_ReCoVeRy_+qgldo.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/6144FC49CB41ACB target="_blank">http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6144FC49CB41ACB</a> <br> <!------1223-=2356 --> 2 - <a href=http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/6144FC49CB41ACB target="_blank">http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/6144FC49CB41ACB</a> <br> <!------1223-=2356 --> 3 - <a href=http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/6144FC49CB41ACB target="_blank">http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/6144FC49CB41ACB</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/6144FC49CB41ACB<!-- 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/6144FC49CB41ACB target="_blank">http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6144FC49CB41ACB</a> <br><a href=http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/6144FC49CB41ACB target="_blank">http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/6144FC49CB41ACB</a> <br> <!-----1223-=2356 --><a href=http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/6144FC49CB41ACB target="_blank">http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/6144FC49CB41ACB</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/6144FC49CB41ACB<!-- 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;">6144FC49CB41ACB</font><br> </div></div></center></body></html>

Signatures

  • TeslaCrypt, AlphaCrypt

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

    ransomwareteslacrypt
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Program Files directory 15 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 45 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f55af179a86bc2f91549e275d0c6168ae6a741895ca1c6256e6e747b3da5eed.exe
    "C:\Users\Admin\AppData\Local\Temp\4f55af179a86bc2f91549e275d0c6168ae6a741895ca1c6256e6e747b3da5eed.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\brgvaroxpigd.exe
      C:\Windows\brgvaroxpigd.exe
      2⤵
      • Executes dropped EXE
      • 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:1984
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1392
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4F55AF~1.EXE
      2⤵
      • Deletes itself
      PID:944
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1208

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\brgvaroxpigd.exe
    Filesize

    405KB

    MD5

    121f8ff33ade92b1bfe147f8ed50e2a2

    SHA1

    176ba5972f93a0da53d7ecb8c1d7412574c5b462

    SHA256

    4f55af179a86bc2f91549e275d0c6168ae6a741895ca1c6256e6e747b3da5eed

    SHA512

    664021c72e12ff5b30799f01c0834017b5f84b10ba3224fd2e6120bb236a34382e8a9325dbfc978342b73ebae15a9075018cb52cfda0d2964967713975aaa17c

    Download Submit

  • C:\Windows\brgvaroxpigd.exe
    Filesize

    405KB

    MD5

    121f8ff33ade92b1bfe147f8ed50e2a2

    SHA1

    176ba5972f93a0da53d7ecb8c1d7412574c5b462

    SHA256

    4f55af179a86bc2f91549e275d0c6168ae6a741895ca1c6256e6e747b3da5eed

    SHA512

    664021c72e12ff5b30799f01c0834017b5f84b10ba3224fd2e6120bb236a34382e8a9325dbfc978342b73ebae15a9075018cb52cfda0d2964967713975aaa17c

    Download Submit

  • memory/1764-54-0x0000000076871000-0x0000000076873000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1764-56-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

    Download

  • memory/1764-55-0x0000000000780000-0x00000000007AF000-memory.dmp

    Filesize

    188KB

    Download

  • memory/1764-57-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

    Download

  • memory/1764-63-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

    Download

  • memory/1984-61-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

    Download

  • memory/1984-65-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

    Download