Overview

overview

10

Static

static

3

Fortnite 7...al.exe

windows7-x64

1

Fortnite 7...al.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Fortnite 7.4 External.exe

  • Size

    907KB

  • Sample

    240419-myf4ysab7t

  • MD5

    edaaef657fc71e16e744b23aab380205

  • SHA1

    ceddd2c4a6a2d9cd92ec8e0097a26ca8e2e720b1

  • SHA256

    2b4a250b8d29b287eab85ff478cfaa4ae2273775d8f49cb51bb0cdf1552f56d4

  • SHA512

    35c9a07d2b4886e01d1f10e9fd7057b228a9c73535f342c2f750d82629e9a89f2ef7b80f5f0e0d4e0ca71d26abeca31cd1b115435247d9067f8a634750b876b6

  • SSDEEP

    24576:EIVQylKjvqqkpW6RTtvsB4PRFK+Oceyn6vbJJH8:bohkpxRRvVZFK+Oc1nkbJR

Score
10/10
wannacrybootkitdiscoverypersistenceransomwarespywarestealerworm

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\@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: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 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

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Targets

    • Target

      Fortnite 7.4 External.exe

    • Size

      907KB

    • MD5

      edaaef657fc71e16e744b23aab380205

    • SHA1

      ceddd2c4a6a2d9cd92ec8e0097a26ca8e2e720b1

    • SHA256

      2b4a250b8d29b287eab85ff478cfaa4ae2273775d8f49cb51bb0cdf1552f56d4

    • SHA512

      35c9a07d2b4886e01d1f10e9fd7057b228a9c73535f342c2f750d82629e9a89f2ef7b80f5f0e0d4e0ca71d26abeca31cd1b115435247d9067f8a634750b876b6

    • SSDEEP

      24576:EIVQylKjvqqkpW6RTtvsB4PRFK+Oceyn6vbJJH8:bohkpxRRvVZFK+Oc1nkbJR

    Score
    10/10
    wannacrybootkitdiscoverypersistenceransomwarespywarestealerworm

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Downloads MZ/PE file

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Indicator Removal

1
T1070

File Deletion

1
T1070.004

File and Directory Permissions Modification

1
T1222

Modify Registry

4
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

4
T1082

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

1
T1490

Defacement

1
T1491

Resource Development

Reconnaissance

Tasks