Overview

overview

10

Static

static

3

55ef5620d1...18.exe

windows7-x64

10

55ef5620d1...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    55ef5620d1205df70163818bf84688cd_JaffaCakes118

  • Size

    336KB

  • Sample

    241018-g5ralssblb

  • MD5

    55ef5620d1205df70163818bf84688cd

  • SHA1

    d883ae424be4f1968797f5d1ef3d7968932ab650

  • SHA256

    84b3cdcc6f4bf098bd8574f5137d6ce863c300e6e2a5512cd6744e6f167459ec

  • SHA512

    82f7284808f2e513dac7d3de3cbd13e56699dfa37aa45e936c7b36a7a76ff42ace05d0acb75e454c495a50f0c2d7862114bd9ed23417f1698fc1eb9afcb4b2cd

  • SSDEEP

    6144:0xy9nRqDo0RAua922DNcbCfFpHVKY8E4IvFBJ1KTBNqG:0w9noocAxxDNcbCdfH8E7vtw9Nq

Score
10/10
teslacryptdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECoVERY_+xrrop.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 AES More information about the encryption keys using AES can be found here: http://en.wikipedia.org/wiki/AES How did this happen ? !!! Specially for your PC was generated personal AES 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/FB34F8CC2045BC29 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/FB34F8CC2045BC29 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/FB34F8CC2045BC29 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/FB34F8CC2045BC29 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/FB34F8CC2045BC29 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/FB34F8CC2045BC29 http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/FB34F8CC2045BC29 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/FB34F8CC2045BC29
URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/FB34F8CC2045BC29

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/FB34F8CC2045BC29

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/FB34F8CC2045BC29

http://xlowfznrg4wf7dli.ONION/FB34F8CC2045BC29

Extracted

Path

C:\Program Files\7-Zip\Lang\_RECoVERY_+efcwv.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 AES More information about the encryption keys using AES can be found here: http://en.wikipedia.org/wiki/AES How did this happen ? !!! Specially for your PC was generated personal AES 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/6F9218EA529D3B4 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6F9218EA529D3B4 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/6F9218EA529D3B4 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/6F9218EA529D3B4 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/6F9218EA529D3B4 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6F9218EA529D3B4 http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/6F9218EA529D3B4 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/6F9218EA529D3B4
URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/6F9218EA529D3B4

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6F9218EA529D3B4

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/6F9218EA529D3B4

http://xlowfznrg4wf7dli.ONION/6F9218EA529D3B4

Targets

    • Target

      55ef5620d1205df70163818bf84688cd_JaffaCakes118

    • Size

      336KB

    • MD5

      55ef5620d1205df70163818bf84688cd

    • SHA1

      d883ae424be4f1968797f5d1ef3d7968932ab650

    • SHA256

      84b3cdcc6f4bf098bd8574f5137d6ce863c300e6e2a5512cd6744e6f167459ec

    • SHA512

      82f7284808f2e513dac7d3de3cbd13e56699dfa37aa45e936c7b36a7a76ff42ace05d0acb75e454c495a50f0c2d7862114bd9ed23417f1698fc1eb9afcb4b2cd

    • SSDEEP

      6144:0xy9nRqDo0RAua922DNcbCfFpHVKY8E4IvFBJ1KTBNqG:0w9noocAxxDNcbCdfH8E7vtw9Nq

    Score
    10/10
    teslacryptdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

    • TeslaCrypt, AlphaCrypt

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

      ransomwareteslacrypt

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (422) files with added filename extension

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

      ransomware

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • 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

    • Indicator Removal: File Deletion

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

      defense_evasion
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

3
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

1
T1490

Tasks