Overview

overview

10

Static

static

1

Ransomware...ry.exe

windows7-x64

10

Ransomware...ry.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Ransomware.wannacry.exe.malz.7z

  • Size

    3.4MB

  • Sample

    230203-qw4c9afe63

  • MD5

    4d9c771619255c9b937c34b4c50cec7e

  • SHA1

    55177cd9cefc6369db31b23e324d3263b4d4e6a6

  • SHA256

    adb41a37499a6f0f5b1e58b1973367dd34a695293dc1fed601c79d21fd0754c1

  • SHA512

    4f017c53bf0c04118ec535f12742b83ab19b1c8f741936c0811641c78264cee8df5a84f149391cd0b5c9a3e6f38f4155b067ca95c1e759d962882414197c6b60

  • SSDEEP

    49152:nlUTH8fWrXRTyEAP/g4CJbErYlXxgx+E/epdYMaiEK3SFNjt4Jg87nIHOVLWF4k9:nlG8mh8gV56+NjaiEK3SFNjthk5I4W3N

Score
10/10
wannacrydiscoverypersistenceransomwarespywarestealerworm

Malware Config

Extracted

Path

C:\ProgramData\yqdbhvadqux735\@Please_Read_Me@.txt

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn Next, please find an application file named "@WanaDecryptor@.exe". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Targets

    • Target

      Ransomware.wannacry.exe.malz

    • Size

      3.6MB

    • MD5

      db349b97c37d22f5ea1d1841e3c89eb4

    • SHA1

      e889544aff85ffaf8b0d0da705105dee7c97fe26

    • SHA256

      24d004a104d4d54034dbcffc2a4b19a11f39008a575aa614ea04703480b1022c

    • SHA512

      d6c60b8f22f89cbd1262c0aa7ae240577a82002fb149e9127d4edf775a25abcda4e585b6113e79ab4a24bb65f4280532529c2f06f7ffe4d5db45c0caf74fea38

    • SSDEEP

      98304:wDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2g3R:wDqPe1Cxcxk3ZAEUadzR8yc4gB

    Score
    10/10
    wannacrydiscoverypersistenceransomwarespywarestealerworm

    • Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Contacts a large (2670) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Contacts a large (951) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • 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

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

      discovery

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

1
T1158

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

File Permissions Modification

1
T1222

Modify Registry

3
T1112

Hidden Files and Directories

1
T1158

Credential Access

Credentials in Files

1
T1081

Discovery

Network Service Scanning

3
T1046

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2
T1490

Defacement

1
T1491

Tasks