Overview

overview

10

Static

static

4c9d43b48d...01.exe

windows7_x64

10

4c9d43b48d...01.exe

windows10-2004_x64

1

Analysis

  • max time kernel
    152s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12/07/2022, 05:39

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General

  • Target

    4c9d43b48d1c44b79a537afe18017eeb9514964607c4467143a93ba73ee61301.exe

  • Size

    344KB

  • MD5

    1fad224af477bd9eb1fae52dcd3925f6

  • SHA1

    6c9d4eeb717bdc36fb329b0ed737755946b2f8ed

  • SHA256

    4c9d43b48d1c44b79a537afe18017eeb9514964607c4467143a93ba73ee61301

  • SHA512

    407dde8ef9f3b489923b781c9de7ce32e0b4ce211d869d1f997fe9e4fc58db6ece3085ce82c758ba525a26fd555bc05e7668ef4a38e507f56a4b1c388171bfd5

Score
10/10
teslacryptpersistenceransomwaresuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1083475884-596052423-1669053738-1000\_RECoVERY_+mgkkr.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/AE9C3BD0A52378E 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AE9C3BD0A52378E 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/AE9C3BD0A52378E 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/AE9C3BD0A52378E 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/AE9C3BD0A52378E http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AE9C3BD0A52378E http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/AE9C3BD0A52378E *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/AE9C3BD0A52378E
URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/AE9C3BD0A52378E

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AE9C3BD0A52378E

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/AE9C3BD0A52378E

http://xlowfznrg4wf7dli.ONION/AE9C3BD0A52378E

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1083475884-596052423-1669053738-1000\_RECoVERY_+mgkkr.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/AE9C3BD0A52378E target="_blank">http://yyre45dbvn2nhbefbmh.begumvelic.at/AE9C3BD0A52378E</a> <br> <!------76896789-3213-679768967=8796789=2389078904 --> 2 - <a href=http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AE9C3BD0A52378E target="_blank">http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AE9C3BD0A52378E</a> <br> <!------76896789-3213-679768967=8796789=2389078904 --> 3 - <a href=http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/AE9C3BD0A52378E target="_blank">http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/AE9C3BD0A52378E</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/AE9C3BD0A52378E<!-- 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/AE9C3BD0A52378E target="_blank">http://yyre45dbvn2nhbefbmh.begumvelic.at/AE9C3BD0A52378E</a> <br><a href=http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AE9C3BD0A52378E target="_blank">http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AE9C3BD0A52378E</a> <br> <!-----76896789-3213-679768967=8796789=2389078904 --><a href=http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/AE9C3BD0A52378E target="_blank">http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/AE9C3BD0A52378E</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/AE9C3BD0A52378E<!-- 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;">AE9C3BD0A52378E</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
  • 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\4c9d43b48d1c44b79a537afe18017eeb9514964607c4467143a93ba73ee61301.exe
    "C:\Users\Admin\AppData\Local\Temp\4c9d43b48d1c44b79a537afe18017eeb9514964607c4467143a93ba73ee61301.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:380
    • C:\Windows\xcwtxjgkxuoa.exe
      C:\Windows\xcwtxjgkxuoa.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:1348
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:268
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4C9D43~1.EXE
      2⤵
      • Deletes itself
      PID:1408
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1092

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\xcwtxjgkxuoa.exe
    Filesize

    344KB

    MD5

    1fad224af477bd9eb1fae52dcd3925f6

    SHA1

    6c9d4eeb717bdc36fb329b0ed737755946b2f8ed

    SHA256

    4c9d43b48d1c44b79a537afe18017eeb9514964607c4467143a93ba73ee61301

    SHA512

    407dde8ef9f3b489923b781c9de7ce32e0b4ce211d869d1f997fe9e4fc58db6ece3085ce82c758ba525a26fd555bc05e7668ef4a38e507f56a4b1c388171bfd5

    Download Submit

  • C:\Windows\xcwtxjgkxuoa.exe
    Filesize

    344KB

    MD5

    1fad224af477bd9eb1fae52dcd3925f6

    SHA1

    6c9d4eeb717bdc36fb329b0ed737755946b2f8ed

    SHA256

    4c9d43b48d1c44b79a537afe18017eeb9514964607c4467143a93ba73ee61301

    SHA512

    407dde8ef9f3b489923b781c9de7ce32e0b4ce211d869d1f997fe9e4fc58db6ece3085ce82c758ba525a26fd555bc05e7668ef4a38e507f56a4b1c388171bfd5

    Download Submit

  • memory/380-57-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download

  • memory/380-63-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download

  • memory/380-54-0x00000000765F1000-0x00000000765F3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/380-56-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download

  • memory/380-55-0x0000000000320000-0x000000000034E000-memory.dmp

    Filesize

    184KB

    Download

  • memory/1348-61-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download

  • memory/1348-65-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

    Download