Overview

overview

10

Static

static

3

MSUpdate.exe

windows7-x64

10

MSUpdate.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    MSUpdate.exe

  • Size

    360KB

  • Sample

    250128-3w8n7axphl

  • MD5

    9ce01dfbf25dfea778e57d8274675d6f

  • SHA1

    1bd767beb5bc36b396ca6405748042640ad57526

  • SHA256

    5343947829609f69e84fe7e8172c38ee018ede3c9898d4895275f596ac54320d

  • SHA512

    d6ba89c1f221a94e3061bc4da896760d99935a7c766b8e4e30146266cf3356acd883835e75dbb86574bc869c83d381c8f63f23392101f6062bba4343af49978b

  • SSDEEP

    6144:4qZbqZToxIizLBZ6R56VkGM4ceLJ5vs5JGJceO/QCErIiuNAvwu:4qZb8oR3D6R5QHXZJy/Q50imAvB

Score
10/10
teslacryptdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+elgwy.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/B6545A61F1AF83B 2. http://tes543berda73i48fsdfsd.keratadze.at/B6545A61F1AF83B 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/B6545A61F1AF83B 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/B6545A61F1AF83B 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/B6545A61F1AF83B http://tes543berda73i48fsdfsd.keratadze.at/B6545A61F1AF83B http://tt54rfdjhb34rfbnknaerg.milerteddy.com/B6545A61F1AF83B *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/B6545A61F1AF83B
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/B6545A61F1AF83B

http://tes543berda73i48fsdfsd.keratadze.at/B6545A61F1AF83B

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/B6545A61F1AF83B

http://xlowfznrg4wf7dli.ONION/B6545A61F1AF83B

Extracted

Path

C:\Program Files\7-Zip\Lang\_RECOVERY_+xysfh.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/69FF1965B85F437F 2. http://tes543berda73i48fsdfsd.keratadze.at/69FF1965B85F437F 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/69FF1965B85F437F 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/69FF1965B85F437F 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/69FF1965B85F437F http://tes543berda73i48fsdfsd.keratadze.at/69FF1965B85F437F http://tt54rfdjhb34rfbnknaerg.milerteddy.com/69FF1965B85F437F *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/69FF1965B85F437F
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/69FF1965B85F437F

http://tes543berda73i48fsdfsd.keratadze.at/69FF1965B85F437F

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/69FF1965B85F437F

http://xlowfznrg4wf7dli.ONION/69FF1965B85F437F

Targets

    • Target

      MSUpdate.exe

    • Size

      360KB

    • MD5

      9ce01dfbf25dfea778e57d8274675d6f

    • SHA1

      1bd767beb5bc36b396ca6405748042640ad57526

    • SHA256

      5343947829609f69e84fe7e8172c38ee018ede3c9898d4895275f596ac54320d

    • SHA512

      d6ba89c1f221a94e3061bc4da896760d99935a7c766b8e4e30146266cf3356acd883835e75dbb86574bc869c83d381c8f63f23392101f6062bba4343af49978b

    • SSDEEP

      6144:4qZbqZToxIizLBZ6R56VkGM4ceLJ5vs5JGJceO/QCErIiuNAvwu:4qZb8oR3D6R5QHXZJy/Q50imAvB

    Score
    10/10
    teslacryptdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

    • TeslaCrypt, AlphaCrypt

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

      ransomwareteslacrypt

    • Teslacrypt family

      teslacrypt

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (429) 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