Overview

overview

10

Static

static

443aa9e25e...af.exe

windows7_x64

10

443aa9e25e...af.exe

windows10-2004_x64

1

Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    07/07/2022, 20:13

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General

  • Target

    443aa9e25e599c0cb676bab68bea3aa3e1ca4cd19bd75ab42460760e748f69af.exe

  • Size

    344KB

  • MD5

    0482fcf271da0368753a7b521f13429a

  • SHA1

    55fc67ba4c01d805f66062bd4210f3db9070683a

  • SHA256

    443aa9e25e599c0cb676bab68bea3aa3e1ca4cd19bd75ab42460760e748f69af

  • SHA512

    819812b1148fa9dba211376a0977fbfb8911f2473cbd6ac662d151043c906c9ff9ce97f92d620d5389dcc9e9e1deb2a8d525984621068a4a40be0077327365a2

Score
10/10
teslacryptpersistenceransomwarespywarestealersuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-790309383-526510583-3802439154-1000\_RECoVERY_+ftnsd.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://yyre45dbvn2nhbefbmh.begumvelic.at/4C9CEC874C4EB283 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4C9CEC874C4EB283 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4C9CEC874C4EB283 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/4C9CEC874C4EB283 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/4C9CEC874C4EB283 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4C9CEC874C4EB283 http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4C9CEC874C4EB283 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/4C9CEC874C4EB283
URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/4C9CEC874C4EB283

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4C9CEC874C4EB283

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4C9CEC874C4EB283

http://xlowfznrg4wf7dli.ONION/4C9CEC874C4EB283

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-790309383-526510583-3802439154-1000\_RECoVERY_+ftnsd.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; <!---===2=3=4=== --> 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<!------===2=3=4=== --> happened <!------===2=3=4=== --> to your<!------===2=3=4=== --> files?</b></font><br> <font style="font-size:13px;">All <!------===2=3=4=== -->of your files<!------===2=3=4=== --> were <!------===2=3=4=== --> protected by a strong<!------===2=3=4=== --> encr<!---===2=3=4=== -->yption wi<!---===2=3=4=== -->th <!------===2=3=4=== -->RSA4096 <!------===2=3=4=== --> <br> More <!------===2=3=4=== --> information about the <!------===2=3=4=== -->encryption RSA4096 can be<!-- ===2=3=4=== --> fou<!---===2=3=4=== -->nd <a href=http://en.wikipedia.org/wiki/RSA_(cryptosystem) target="_blank"> http://en.wikipedia.org/wiki/RSA_(cryptosystem) </a><br></font> <br><b><font class="ttl">Wh<!--===2=3=4=== -->at <!------===2=3=4=== --> does th<!--===2=3=4=== -->is mean?</b></font><br><font style="font-size:13px;"> T<!--===2=3=4=== -->his<!------===2=3=4=== --> mea<!--===2=3=4=== -->ns that the <!------===2=3=4=== --> str<!--===2=3=4=== -->ucture and da<!--===2=3=4=== -->ta wi<!--===2=3=4=== -->thin your <!------===2=3=4=== -->files ha<!--===2=3=4=== -->ve be<!--===2=3=4=== -->en<!------===2=3=4=== --> irre<!--===2=3=4=== -->voca<!--===2=3=4=== -->bly changed, you will not be able work wi<!--===2=3=4=== -->th them, read<!------===2=3=4=== --> th<!--===2=3=4=== -->em or see them, <!------===2=3=4=== -->it is the s<!--===2=3=4=== -->ame thing <!------===2=3=4=== -->as los<!--===2=3=4=== -->ing <!------===2=3=4=== -->them for<!--===2=3=4=== -->ever, but with our he<!--===2=3=4=== -->lp, you <!------===2=3=4=== --> can re<!--===2=3=4=== -->st<!--===2=3=4=== -->ore t<!--===2=3=4=== -->hem <br><br><b><font class="ttl"><!------===2=3=4=== -->Ho<!--===2=3=4=== -->w d<!--===2=3=4=== -->id th<!--===2=3=4=== -->is hap<!--===2=3=4=== -->pen?<!------===2=3=4=== --></b></font> <br> <!------===2=3=4=== --> <font style="font-size:13px;"><!------===2=3=4=== --> Espec<!--===2=3=4=== -->ially for y<!--===2=3=4=== -->ou,<!------===2=3=4=== --> on our SER<!--===2=3=4=== -->VER <!------===2=3=4=== -->was gene<!--===2=3=4=== -->rated <!------===2=3=4=== -->the sec<!--===2=3=4=== -->ret k<!--===2=3=4=== -->ey <br>Al<!--===2=3=4===-->l y<!--===2=3=4===-->our <!------===2=3=4=== --> files w<!--===2=3=4===-->ere encry<!--===2=3=4===-->pted with the p<!--===2=3=4===-->ublic k<!--===2=3=4===-->ey, <!------===2=3=4=== --> wh<!--===2=3=4===-->ich has b<!--===2=3=4===-->een <!------===2=3=4=== --> trans<!--===2=3=4===-->ferred to <!------===2=3=4=== -->y<!--===2=3=4===-->our co<!--===2=3=4===-->mputer via <!------===2=3=4=== -->the Inter<!--===2=3=4===-->net.<!--===2=3=4===--><br> <!------===2=3=4=== --> Decr<!--===2=3=4===-->ypting of <!------===2=3=4=== -->YO<!--===2=3=4===-->UR FI<!--===2=3=4===-->LES is <!--===2=3=4=== -->on<!--===2=3=4=== -->ly p<!--===2=3=4=== -->oss<!--===2=3=4===-->ible <!--- -===2=3=4=== -->w<!--===2=3=4=== -->ith the he<!--===2=3=4===-->lp of t<!--===2=3=4=== -->he <!----===2=3=4=== -->pri<!--===2=3=4===-->va<!--===2=3=4=== -->te k<!--===2=3=4===-->ey a<!--===2=3=4=== -->nd <!--===2=3=4=== -->d<!--===2=3=4=== -->ecr<!--===2=3=4===-->ypt p<!--===2=3=4=== -->rog<!--===2=3=4===-->ram <!--===2=3=4=== -->wh<!--===2=3=4===-->ich is on our <!--- -===2=3=4=== -->Sec<!--===2=3=4===-->ret <!--===2=3=4=== -->Ser<!--===2=3=4===-->ver!!! </font><br><br><b><font class="ttl">Wh<!--===2=3=4===-->at do I do?</b></font> <br><font style="font-size:13px;">Alas, if you <!--===2=3=4=== --> do not take <!---===2=3=4=== --> the nece<!--===2=3=4===-->ssary meas<!--===2=3=4===-->ures <!--===2=3=4===-->for the spec<!--===2=3=4===-->ified ti<!--===2=3=4===-->me th<!--===2=3=4===-->en t<!--===2=3=4===-->he co<!--===2=3=4===-->nditions fo<!--===2=3=4===-->r obta<!--===2=3=4===-->ining the priv<!--===2=3=4===-->ate ke<!--===2=3=4===-->y w<!--===2=3=4===-->ill be cha<!--===2=3=4===-->nged<!--- ===2=3=4=== --> <br> <!-----===2=3=4=== --> If you really need <!------===2=3=4=== --> your data, <!------===2=3=4=== -->then we suggest you <!------===2=3=4=== --> do not waste<!------===2=3=4=== --> valuable <!------===2=3=4=== --> time searching <!------===2=3=4=== -->for other <!------===2=3=4=== --> solutions <!------===2=3=4=== -->becausen <!----===2=3=4=== --> they do not exist.</font><br><br> <!----===2=3=4=== --><div class="tb" style="color:#880000; font-size:13px; border-width:3px;">For more specific instructions, please<!------===2=3=4=== --> visit your <!------===2=3=4=== --> personal <!------===2=3=4=== -->home page,<!------===2=3=4=== --> there are<!------===2=3=4=== --> a few <!------===2=3=4=== -->different <!------===2=3=4=== -->addresses<!------===2=3=4=== --> pointing to <!------===2=3=4=== --> your page<!------===2=3=4=== --> below:<b><hr> <!---76896789-3213-679768967=8796789=2389078904---> 1 - <a href=http://yyre45dbvn2nhbefbmh.begumvelic.at/4C9CEC874C4EB283 target="_blank">http://yyre45dbvn2nhbefbmh.begumvelic.at/4C9CEC874C4EB283</a> <br> <!------76896789-3213-679768967=8796789=2389078904 --> 2 - <a href=http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4C9CEC874C4EB283 target="_blank">http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4C9CEC874C4EB283</a> <br> <!------76896789-3213-679768967=8796789=2389078904 --> 3 - <a href=http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4C9CEC874C4EB283 target="_blank">http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4C9CEC874C4EB283</a> <br> <!------76896789-3213-679768967=8796789=2389078904 --></div><br><div class="tb" style="font-size:13px; border-color:#880000;"><b>If for some reasons the <!-----76896789-3213-679768967=8796789=2389078904 --> addresses are not available, <!------76896789-3213-679768967=8796789=2389078904 --> follow these steps:</b> <hr> 1 - <!------76896789-3213-679768967=8796789=2389078904 --> Download and <!------76896789-3213-679768967=8796789=2389078904 --> 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 - <!---76896789-3213-679768967=8796789=2389078904 --> Af<!---76896789-3213-679768967=8796789=2389078904--->ter a<!---76896789-3213-679768967=8796789=2389078904---> succe<!---76896789-3213-679768967=8796789=2389078904--->ssful<!------76896789-3213-679768967=8796789=2389078904 --> instal<!---76896789-3213-679768967=8796789=2389078904--->lation, run the br<!---76896789-3213-679768967=8796789=2389078904--->owser and w<!---76896789-3213-679768967=8796789=2389078904--->ait for initi<!---76896789-3213-679768967=8796789=2389078904--->alization.<br> 3 - <!--- 76896789-3213-679768967=8796789=2389078904 --> Ty<!---76896789-3213-679768967=8796789=2389078904--->pe<!-- 76896789-3213-679768967=8796789=2389078904 --> in<!-- 76896789-3213-679768967=8796789=2389078904 --> the t<!---76896789-3213-679768967=8796789=2389078904--->or-bro<!---76896789-3213-679768967=8796789=2389078904--->wser<!-- 76896789-3213-679768967=8796789=2389078904 --> add<!---76896789-3213-679768967=8796789=2389078904--->ress<!-- 76896789-3213-679768967=8796789=2389078904 --> bar: <font style="font-weight:bold; color:#009977;"><!-- 76896789-3213-679768967=8796789=2389078904 -->xlowfznrg4wf7dli.onion/4C9CEC874C4EB283<!-- 76896789-3213-679768967=8796789=2389078904 --></font><!-- 76896789-3213-679768967=8796789=2389078904 --><br> 4 - <!--- 76896789-3213-679768967=8796789=2389078904 --> Fol<!---76896789-3213-679768967=8796789=2389078904--->low the instr<!---76896789-3213-679768967=8796789=2389078904--->uctions <!-- 76896789-3213-679768967=8796789=2389078904 --> on the site.</div><br><br><b>!!! IMPO<!---76896789-3213-679768967=8796789=2389078904--->RTANT INFO<!---76896789-3213-679768967=8796789=2389078904--->RMATION:</b><br> <!-----76896789-3213-679768967=8796789=2389078904 --><div class="tb" style="width:790px;"><!-----76896789-3213-679768967=8796789=2389078904 --> Yo<!---76896789-3213-679768967=8796789=2389078904--->ur Pers<!---76896789-3213-679768967=8796789=2389078904--->onal PAGES<b>: <br> <a href=http://yyre45dbvn2nhbefbmh.begumvelic.at/4C9CEC874C4EB283 target="_blank">http://yyre45dbvn2nhbefbmh.begumvelic.at/4C9CEC874C4EB283</a> <br><a href=http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4C9CEC874C4EB283 target="_blank">http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4C9CEC874C4EB283</a> <br> <!-----76896789-3213-679768967=8796789=2389078904 --><a href=http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4C9CEC874C4EB283 target="_blank">http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4C9CEC874C4EB283</a> <br> <!-----76896789-3213-679768967=8796789=2389078904 --> Your <!------76896789-3213-679768967=8796789=2389078904 --> Personal TOR-Browser<!-----76896789-3213-679768967=8796789=2389078904 --> page : <!-----76896789-3213-679768967=8796789=2389078904 --><font style="font-weight:bold; color:#009977;"><!-- 76896789-3213-679768967=8796789=2389078904 -->xlowfznrg4wf7dli.onion/4C9CEC874C4EB283<!-- 76896789-3213-679768967=8796789=2389078904 --></font><br> <!-----76896789-3213-679768967=8796789=2389078904 --> Your personal <!------76896789-3213-679768967=8796789=2389078904 --> ID <!-----76896789-3213-679768967=8796789=2389078904 --> (if you open <!------76896789-3213-679768967=8796789=2389078904 --> the site directly): <!-----76896789-3213-679768967=8796789=2389078904 --> <font style="font-weight:bold; color:#770000;">4C9CEC874C4EB283</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
  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • 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.

  • Modifies system certificate store 2 TTPs 6 IoCs
    evasionspywaretrojan
  • 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\443aa9e25e599c0cb676bab68bea3aa3e1ca4cd19bd75ab42460760e748f69af.exe
    "C:\Users\Admin\AppData\Local\Temp\443aa9e25e599c0cb676bab68bea3aa3e1ca4cd19bd75ab42460760e748f69af.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1788
    • C:\Windows\lleymtnoxkhy.exe
      C:\Windows\lleymtnoxkhy.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:2016
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1728
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\443AA9~1.EXE
      2⤵
      • Deletes itself
      PID:2004
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:272

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\lleymtnoxkhy.exe
    Filesize

    344KB

    MD5

    0482fcf271da0368753a7b521f13429a

    SHA1

    55fc67ba4c01d805f66062bd4210f3db9070683a

    SHA256

    443aa9e25e599c0cb676bab68bea3aa3e1ca4cd19bd75ab42460760e748f69af

    SHA512

    819812b1148fa9dba211376a0977fbfb8911f2473cbd6ac662d151043c906c9ff9ce97f92d620d5389dcc9e9e1deb2a8d525984621068a4a40be0077327365a2

    Download Submit

  • C:\Windows\lleymtnoxkhy.exe
    Filesize

    344KB

    MD5

    0482fcf271da0368753a7b521f13429a

    SHA1

    55fc67ba4c01d805f66062bd4210f3db9070683a

    SHA256

    443aa9e25e599c0cb676bab68bea3aa3e1ca4cd19bd75ab42460760e748f69af

    SHA512

    819812b1148fa9dba211376a0977fbfb8911f2473cbd6ac662d151043c906c9ff9ce97f92d620d5389dcc9e9e1deb2a8d525984621068a4a40be0077327365a2

    Download Submit

  • memory/1788-54-0x0000000075DB1000-0x0000000075DB3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1788-55-0x0000000001EE0000-0x0000000001F0E000-memory.dmp

    Filesize

    184KB

    Download

  • memory/1788-56-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download

  • memory/1788-60-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download

  • memory/1788-63-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download

  • memory/2016-61-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download

  • memory/2016-65-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download