Overview

overview

10

Static

static

3

41c9cf8f98...18.exe

windows7-x64

10

41c9cf8f98...18.exe

windows10-2004-x64

10

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General

  • Target

    41c9cf8f98d9cf11e0b101562876d404_JaffaCakes118

  • Size

    424KB

  • Sample

    241013-yn5kcavhkd

  • MD5

    41c9cf8f98d9cf11e0b101562876d404

  • SHA1

    88a88e498b8e4b73e8585e7994ed519b9ace9610

  • SHA256

    bedd09abc5eb323220f26eadbe1ede76373ebd6d8a84fd2884429760b0cd197a

  • SHA512

    78c028c126351716c5460f391d810d5925f9ad36eb3a506b0e3d015bcef9b2a0ed9c3fbec9c3f81a5dc362edf64de5eb377da070712ac720d9ea6350da5af113

  • SSDEEP

    12288:wL2WjWgDhrhjxaRaDz7z4HMLzskGWoXblCJxfS6:wDXpVx7f7dLoMorOR1

Score
10/10
teslacryptdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECoVERY_+ogims.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/FFBDAB7536DEA9A5 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/FFBDAB7536DEA9A5 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/FFBDAB7536DEA9A5 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/FFBDAB7536DEA9A5 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/FFBDAB7536DEA9A5 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/FFBDAB7536DEA9A5 http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/FFBDAB7536DEA9A5 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/FFBDAB7536DEA9A5
URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/FFBDAB7536DEA9A5

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/FFBDAB7536DEA9A5

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/FFBDAB7536DEA9A5

http://xlowfznrg4wf7dli.ONION/FFBDAB7536DEA9A5

Extracted

Path

C:\Program Files\7-Zip\Lang\_RECoVERY_+pxgak.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/625F3498D7DBD9C 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/625F3498D7DBD9C 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/625F3498D7DBD9C 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/625F3498D7DBD9C 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/625F3498D7DBD9C http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/625F3498D7DBD9C http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/625F3498D7DBD9C *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/625F3498D7DBD9C
URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/625F3498D7DBD9C

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/625F3498D7DBD9C

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/625F3498D7DBD9C

http://xlowfznrg4wf7dli.ONION/625F3498D7DBD9C

Targets

    • Target

      41c9cf8f98d9cf11e0b101562876d404_JaffaCakes118

    • Size

      424KB

    • MD5

      41c9cf8f98d9cf11e0b101562876d404

    • SHA1

      88a88e498b8e4b73e8585e7994ed519b9ace9610

    • SHA256

      bedd09abc5eb323220f26eadbe1ede76373ebd6d8a84fd2884429760b0cd197a

    • SHA512

      78c028c126351716c5460f391d810d5925f9ad36eb3a506b0e3d015bcef9b2a0ed9c3fbec9c3f81a5dc362edf64de5eb377da070712ac720d9ea6350da5af113

    • SSDEEP

      12288:wL2WjWgDhrhjxaRaDz7z4HMLzskGWoXblCJxfS6:wDXpVx7f7dLoMorOR1

    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 (417) 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