Overview

overview

10

Static

static

3

8199ef63e0...80.exe

windows7-x64

10

8199ef63e0...80.exe

windows10-2004-x64

10

Resubmissions

01-01-2025 00:01

250101-aay9eawncs 10

31-12-2024 23:46

241231-3sc34swjct 10

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General

  • Target

    8199ef63e0058be6217ec8392258fbe7fac9fb556b8e87f40a3a45835f424980.exe

  • Size

    320KB

  • Sample

    250101-aay9eawncs

  • MD5

    e6fc190168519d6a6c4f1519e9450f0f

  • SHA1

    af2080ddf1064fb80c7b9af942aaabf264441098

  • SHA256

    8199ef63e0058be6217ec8392258fbe7fac9fb556b8e87f40a3a45835f424980

  • SHA512

    4522d4e3f8a38dbceb30d09ea04ceeacc33bb273d702d706be68405cd4c9492f862f4ae741f4e0140b54203b3db521e96663f9757bb241b1ac63c1eda3ebb6ba

  • SSDEEP

    6144:Q4K8rYBWqjbqL7busNWGl3GDmm+miR9zrmkdAZ:Q46QKbQJNDl3cmgiRlK

Score
10/10
surtrcredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealertrojanupx

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\SURTR_README.hta

Family

surtr

Ransom Note
SurtrRansomware OOPS ALL YOUR IMPORTANT FILES HAVE BEEN ENCRYPTED AND STOLEN !! Notice : There is only one way to restore your data read the boxes carefully! Attention : Do Not change file names. Do Not try to decrypt using third party softwares , it may cause permanent data loss . If you do not pay the fee within one month , your important files will be published in our public belog . Do not pay any money before decrypting the test files. You can use our 50% discount if you pay the fee within first 15 days of encryption . otherwise the price will be doubled. In order to warranty you , our team will decrypt 3 of your desired files for free.but you need to pay the specified price for the rest of the operation . How To Decrypt : Your system is offline . in order to contact us you can email this address [email protected] use this ID (WJVoydoUbR7cjA) for the title of your email . If you weren't able to contact us within 24 hours please email : [email protected] If you didn't get any respond within 48 hours use this link (Not Available Now).send your ID and your cryptor name (SurtrRansomwareUserName) therefore we can create another way to contact you as soon as possible

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\SURTR_README.hta

Ransom Note
<!DOCTYPE html><html lang="en"> <head> <meta http-equiv="x-ua-compatible" content="ie = 9"> <meta name="viewport" content="width = device-width, initial-scale = 1.0"> <title>SurtrRansomware</title> <HTA:APPLICATION ID="SurtrRansomware" APPLICATIONNAME="SurtrRansomware" icon=explorer.exe scroll=no contextmenu=no innerBorder=no windowState=maximize minimizeButton=no singleInstance=yes sysMenu=no VERSION="1.0" WINDOWSTATE="maximize"/> </head><style>@import url('https://fonts.googleapis.com/css2?family=Didact+Gothic&display=swap');@import url('https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.1/normalize.css');body { overflow: hidden; font-family: 'Didact Gothic', sans-serif; color:#333; box-sizing: border-box; }* { box-sizing: border-box; }a { text-decoration: none;}header { background-color: #f2f2f2; height: 90px; }nav { width: 960px; margin: 0 auto; display: flex; justify-content: space-between;}.logo { width: 100px;}.logo img { width: 100px; }.lang-menu { width: 100px; text-align: right; font-weight: bold; margin-top: 25px; position: relative;}.lang-menu .selected-lang { display: flex; justify-content: space-between; line-height: 2; cursor: pointer;}.lang-menu .selected-lang:before { content: ''; display: inline-block; width: 32px; height: 32px; background-image: url(https://www.countryflags.io/us/flat/32.png); background-size: contain; background-repeat: no-repeat;}.lang-menu ul { margin: 0; padding: 0; display: none; background-color: #fff; border: 1px solid #f8f8f8; position: absolute; top: 45px; right: 0px; width: 125px; border-radius: 5px; box-shadow: 0px 1px 10px rgba(0,0,0,0.2);}p{ display: -webkit-box; display: -ms-flexbox; display: inline; -webkit-box-pack: start; -ms-flex-pack: start; justify-content: flex-start; }.lang-menu ul li { list-style: none; text-align: left; display: flex; justify-content: space-between;}.lang-menu ul li a { text-decoration: none; width: 125px; padding: 5px 10px; display: block;}.lang-menu ul li:hover { background-color: #f2f2f2;}.lang-menu ul li a:before { content: ''; display: inline-block; width: 25px; height: 25px; vertical-align: middle; margin-right: 10px; background-size: contain; background-repeat: no-repeat;}.de:before { background-image: url(https://www.countryflags.io/de/flat/32.png);}.en:before { background-image: url(https://www.countryflags.io/us/flat/32.png);}.fr:before { background-image: url(https://www.countryflags.io/fr/flat/32.png);}.ar:before { background-image: url(https://www.countryflags.io/ae/flat/32.png);}.lang-menu:hover ul { display: block;}i { color: #dc143c; font-style: normal;}td{ font-size: 1.4rem; }@media only screen and (max-width: 1370px) { td{ font-size: 1rem; } h1.ex1 { font-size:1.2rem !important; } p.ex2{ font-size:1rem !important; } p.ex3{ font-size:1.4rem !important; } h1#noticefirst{ font-size:1.5rem !important; } } </style> </style> <body> <div style="margin-left: 60px; margin-right: 60px; margin-top:20px;"> <div style="display: inline; "> <p class="ex3" style="border-left: 6px solid rgb(255, 55, 55); font-size: 40px; background-color: rgb(255, 255, 255); padding-left: 10px; color: rgb(88, 88, 88); "><strong >SurtrRansomware</strong> </p> </div> <div style="width: 100%; border-radius: 4px; margin-top: 10px; border-style: solid; border-color: rgb(255, 78, 78); border-width: 0.5px; text-align: center; background-color: rgb(255, 249, 249); "> <h1 style="font-size: 1.8rem; margin-left: 10px; "> OOPS ALL YOUR <b style="color: #fff; background-color: rgb(248, 26, 26); padding: 4px; font-size: 1.8rem; ">IMPORTANT FILES</b> HAVE BEEN ENCRYPTED AND <b style="color: #fff; background-color: rgb(248, 26, 26); padding: 4px; font-size: 1.8rem; ">STOLEN !!</b></h1> </div> <h1 id="noticefirst" > Notice : There is only one way to restore your data read the boxes carefully! </h1> <div style="width: 100%; border-radius: 4px; border-style: solid; position: relative; border-color: rgb(248, 26, 26); border-width: 0.5px 0.5px 0.5px 25px; background-color: rgb(255, 227, 227); padding-top: 1%; padding-bottom: 1%; "> <div style="width: 100%; margin-top: -7px;"> <h1 class="ex1" style=" margin-bottom: 7px; margin-top: 0px; margin-left: 10px; font-size:1.8rem; color: #000; ">Attention :</h1> </div> <div style="width: 48%; display: inline-block; position: absolute; right : 0; "> <div style=" height:100%; margin-left: 15px; "> <table > <tbody> <tr> <td style="text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; " width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong> Do Not change file names.</strong></td> </tr> <tr style="height: 56px; "> <td style=" text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; " width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong>Do Not try to decrypt using third party softwares , it may cause permanent data loss .</strong></td> </tr> <tr> <td style=" text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; " width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong> If you do not pay the fee within one month , your important files will be published in our public belog .</strong></td> </tr> </tbody> </table> </div> </div> <div style="width: 48%; display: inline-block; "> <div style=" height:100%; margin-left: 15px; "> <table > <tbody> <tr> <td style=" text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; " width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong> Do not pay any money before decrypting the test files.</strong></td> </tr> <tr style="height: 56px; "> <td style=" text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; "width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong> You can use our 50% discount if you pay the fee within first 15 days of encryption . otherwise the price will be doubled.</strong></td> </tr> <tr > <td style=" text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; " width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong> In order to warranty you , our team will decrypt 3 of your desired files for free.but you need to pay the specified price for the rest of the operation .</strong></td> </tr> </tbody> </table> </div> </div> </div> <div style="width: 100%; border-radius: 4px; margin-top: 5px; "> <div style="width: 100%; display: flex; flex-direction: column; border-style: solid; padding top: 1%; padding-bottom: 1%; border-color: #4d53eb; border-width: 0.5px 0.5px 0.5px 25px; border-radius: 4px; background-color: #f3f3fc; " > <div><h1 class="ex1" style=" margin-bottom: 7px; margin-top: 0px; margin-left: 10px; font-size:1.6rem; color: #000; ">How To Decrypt :</h1></div> <div style=" height:100%; margin-left: 15px; "> <table style="table-layout: fixed; "> <tbody> <tr> <td style=" text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; " width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong> Your system is offline . in order to contact us you can email this address <i> [email protected] </i> use this ID (<i style="color: #dc143c; " >WJVoydoUbR7cjA</i>) for the title of your email .</strong></td> </tr> <tr style="height: 56px; "> <td style=" text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; " width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong> If you weren't able to contact us within 24 hours please email : <i > [email protected] </i></strong></td> </tr> <tr> <td style=" text-align: center; color: #dc143c; padding: 0px; vertical-align: middle; " width="20">&#9762;</td> <td style=" text-align: left; padding: 0px; vertical-align: middle; " ><strong> If you didn't get any respond within 48 hours use this link (Not Available Now).send your ID and your cryptor name (SurtrRansomwareUserName) therefore we can create another way to contact you as soon as possible </i></strong></td> </tr> </tbody> </table> </div> </div> </div></body></html>
URLs

http-equiv="x-ua-compatible"

Targets

    • Target

      8199ef63e0058be6217ec8392258fbe7fac9fb556b8e87f40a3a45835f424980.exe

    • Size

      320KB

    • MD5

      e6fc190168519d6a6c4f1519e9450f0f

    • SHA1

      af2080ddf1064fb80c7b9af942aaabf264441098

    • SHA256

      8199ef63e0058be6217ec8392258fbe7fac9fb556b8e87f40a3a45835f424980

    • SHA512

      4522d4e3f8a38dbceb30d09ea04ceeacc33bb273d702d706be68405cd4c9492f862f4ae741f4e0140b54203b3db521e96663f9757bb241b1ac63c1eda3ebb6ba

    • SSDEEP

      6144:Q4K8rYBWqjbqL7busNWGl3GDmm+miR9zrmkdAZ:Q46QKbQJNDl3cmgiRlK

    Score
    10/10
    surtrcredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealertrojanupx

    • Detects Surtr Payload

    • Surtr

      Ransomware family first seen in late 2021.

      ransomwaresurtr

    • Surtr family

      surtr

    • UAC bypass

      evasiontrojan

    • Clears Windows event logs

      evasionransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (9427) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Blocklisted process makes network request

    • Disables Task Manager via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Drops startup file

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

      defense_evasion

    • Network Share Discovery

      Attempt to gather information on host network.

      discovery

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

      persistence

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Power Settings

1
T1653

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Direct Volume Access

1
T1006

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Indicator Removal

4
T1070

Clear Windows Event Logs

1
T1070.001

File Deletion

3
T1070.004

Modify Registry

4
T1112

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Network Share Discovery

1
T1135

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

4
T1490

Tasks