Analysis

  • max time kernel
    151s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    08-07-2022 21:02

General

  • Target

    402b79b1b53604ec3c7a4e969d834df62c8cc7c7f2d876d8678c7c1f59eb1d7a.exe

  • Size

    408KB

  • MD5

    81eb1ba1a5b0289bab6fb45e54719df1

  • SHA1

    e2c20fcf01e745ea6847f1a043e56f65343c72a7

  • SHA256

    402b79b1b53604ec3c7a4e969d834df62c8cc7c7f2d876d8678c7c1f59eb1d7a

  • SHA512

    3580308cc941245877fc09899d81d937bd7e5baa46460b07cb3a4a41271c8b85ae3d0aa6821863a2cf25a6b373cce6a8b89977322dfed3aa89398e1bc0decf08

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-790309383-526510583-3802439154-1000\_ReCoVeRy_+tnsdk.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://po4dbsjbneljhrlbvaueqrgveatv.bonmawp.at/DFFA6705E809984 2 - http://u54bbnhf354fbkh254tbkhjbgy8258gnkwerg.tahaplap.com/DFFA6705E809984 3 - http://w6bfg4hahn5bfnlsafgchkvg5fwsfvrt.hareuna.at/DFFA6705E809984 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/DFFA6705E809984 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://po4dbsjbneljhrlbvaueqrgveatv.bonmawp.at/DFFA6705E809984 http://u54bbnhf354fbkh254tbkhjbgy8258gnkwerg.tahaplap.com/DFFA6705E809984 http://w6bfg4hahn5bfnlsafgchkvg5fwsfvrt.hareuna.at/DFFA6705E809984 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/DFFA6705E809984
URLs

http://po4dbsjbneljhrlbvaueqrgveatv.bonmawp.at/DFFA6705E809984

http://u54bbnhf354fbkh254tbkhjbgy8258gnkwerg.tahaplap.com/DFFA6705E809984

http://w6bfg4hahn5bfnlsafgchkvg5fwsfvrt.hareuna.at/DFFA6705E809984

http://xlowfznrg4wf7dli.ONION/DFFA6705E809984

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-790309383-526510583-3802439154-1000\_ReCoVeRy_+tnsdk.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> <!---2+1=3---> 1 - <a href=http://po4dbsjbneljhrlbvaueqrgveatv.bonmawp.at/DFFA6705E809984 target="_blank">http://po4dbsjbneljhrlbvaueqrgveatv.bonmawp.at/DFFA6705E809984</a> <br> <!------2+1=3 --> 2 - <a href=http://u54bbnhf354fbkh254tbkhjbgy8258gnkwerg.tahaplap.com/DFFA6705E809984 target="_blank">http://u54bbnhf354fbkh254tbkhjbgy8258gnkwerg.tahaplap.com/DFFA6705E809984</a> <br> <!------2+1=3 --> 3 - <a href=http://w6bfg4hahn5bfnlsafgchkvg5fwsfvrt.hareuna.at/DFFA6705E809984 target="_blank">http://w6bfg4hahn5bfnlsafgchkvg5fwsfvrt.hareuna.at/DFFA6705E809984</a> <br> <!------2+1=3 --></div><br><div class="tb" style="font-size:13px; border-color:#880000;"><b>If for some reasons the <!-----2+1=3 --> addresses are not available, <!------2+1=3 --> follow these steps:</b> <hr> 1 - <!------2+1=3 --> Download and <!------2+1=3 --> 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 - <!---2+1=3 --> Af<!---2+1=3--->ter a<!---2+1=3---> succe<!---2+1=3--->ssful<!------2+1=3 --> instal<!---2+1=3--->lation, run the br<!---2+1=3--->owser and w<!---2+1=3--->ait for initi<!---2+1=3--->alization.<br> 3 - <!--- 2+1=3 --> Ty<!---2+1=3--->pe<!-- 2+1=3 --> in<!-- 2+1=3 --> the t<!---2+1=3--->or-bro<!---2+1=3--->wser<!-- 2+1=3 --> add<!---2+1=3--->ress<!-- 2+1=3 --> bar: <font style="font-weight:bold; color:#009977;"><!-- 2+1=3 -->xlowfznrg4wf7dli.onion/DFFA6705E809984<!-- 2+1=3 --></font><!-- 2+1=3 --><br> 4 - <!--- 2+1=3 --> Fol<!---2+1=3--->low the instr<!---2+1=3--->uctions <!-- 2+1=3 --> on the site.</div><br><br><b>!!! IMPO<!---2+1=3--->RTANT INFO<!---2+1=3--->RMATION:</b><br> <!-----2+1=3 --><div class="tb" style="width:790px;"><!-----2+1=3 --> Yo<!---2+1=3--->ur Pers<!---2+1=3--->onal PAGES<b>: <br> <a href=http://po4dbsjbneljhrlbvaueqrgveatv.bonmawp.at/DFFA6705E809984 target="_blank">http://po4dbsjbneljhrlbvaueqrgveatv.bonmawp.at/DFFA6705E809984</a> <br><a href=http://u54bbnhf354fbkh254tbkhjbgy8258gnkwerg.tahaplap.com/DFFA6705E809984 target="_blank">http://u54bbnhf354fbkh254tbkhjbgy8258gnkwerg.tahaplap.com/DFFA6705E809984</a> <br> <!-----2+1=3 --><a href=http://w6bfg4hahn5bfnlsafgchkvg5fwsfvrt.hareuna.at/DFFA6705E809984 target="_blank">http://w6bfg4hahn5bfnlsafgchkvg5fwsfvrt.hareuna.at/DFFA6705E809984</a> <br> <!-----2+1=3 --> Your <!------2+1=3 --> Personal TOR-Browser<!-----2+1=3 --> page : <!-----2+1=3 --><font style="font-weight:bold; color:#009977;"><!-- 2+1=3 -->xlowfznrg4wf7dli.onion/DFFA6705E809984<!-- 2+1=3 --></font><br> <!-----2+1=3 --> Your personal <!------2+1=3 --> ID <!-----2+1=3 --> (if you open <!------2+1=3 --> the site directly): <!-----2+1=3 --> <font style="font-weight:bold; color:#770000;">DFFA6705E809984</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 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.

  • Adds Run key to start application 2 TTPs 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 45 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\402b79b1b53604ec3c7a4e969d834df62c8cc7c7f2d876d8678c7c1f59eb1d7a.exe
    "C:\Users\Admin\AppData\Local\Temp\402b79b1b53604ec3c7a4e969d834df62c8cc7c7f2d876d8678c7c1f59eb1d7a.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Windows\fcnjqdrxijbb.exe
      C:\Windows\fcnjqdrxijbb.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:644
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:900
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\402B79~1.EXE
      2⤵
      • Deletes itself
      PID:1804
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1552

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\fcnjqdrxijbb.exe

    Filesize

    408KB

    MD5

    81eb1ba1a5b0289bab6fb45e54719df1

    SHA1

    e2c20fcf01e745ea6847f1a043e56f65343c72a7

    SHA256

    402b79b1b53604ec3c7a4e969d834df62c8cc7c7f2d876d8678c7c1f59eb1d7a

    SHA512

    3580308cc941245877fc09899d81d937bd7e5baa46460b07cb3a4a41271c8b85ae3d0aa6821863a2cf25a6b373cce6a8b89977322dfed3aa89398e1bc0decf08

  • C:\Windows\fcnjqdrxijbb.exe

    Filesize

    408KB

    MD5

    81eb1ba1a5b0289bab6fb45e54719df1

    SHA1

    e2c20fcf01e745ea6847f1a043e56f65343c72a7

    SHA256

    402b79b1b53604ec3c7a4e969d834df62c8cc7c7f2d876d8678c7c1f59eb1d7a

    SHA512

    3580308cc941245877fc09899d81d937bd7e5baa46460b07cb3a4a41271c8b85ae3d0aa6821863a2cf25a6b373cce6a8b89977322dfed3aa89398e1bc0decf08

  • memory/644-57-0x0000000000000000-mapping.dmp

  • memory/644-62-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/644-64-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/900-65-0x0000000000000000-mapping.dmp

  • memory/948-54-0x0000000074F21000-0x0000000074F23000-memory.dmp

    Filesize

    8KB

  • memory/948-55-0x0000000000310000-0x000000000033F000-memory.dmp

    Filesize

    188KB

  • memory/948-56-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/948-61-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/1804-60-0x0000000000000000-mapping.dmp