General

  • Target

    Mellohi.mp3

  • Size

    2.2MB

  • Sample

    240604-skqzwsbb7t

  • MD5

    fe0cf3cce420ac183595624ae240169a

  • SHA1

    0836345e57b8c4447b828d7649018b6fce9bc5f5

  • SHA256

    b425948d4afb5f17ec893d892a244952b88cff63ea580a8697fc4ca6f8dabc84

  • SHA512

    684594f1e6a28ec5419969e776c99e3c1e7841962ec36989bc59b5f00382d1333a369e6c591ae6c244138391786165e211909a6fe08815b90860acaa23e57745

  • SSDEEP

    49152:4GNnGn/hCcwVyU2550147MpxIhhChitdhi9a/:4o7yFwigHIvChChi98

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\Temp1_WannaCrypt0r.zip\@[email protected]

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 "@[email protected]". 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

      Mellohi.mp3

    • Size

      2.2MB

    • MD5

      fe0cf3cce420ac183595624ae240169a

    • SHA1

      0836345e57b8c4447b828d7649018b6fce9bc5f5

    • SHA256

      b425948d4afb5f17ec893d892a244952b88cff63ea580a8697fc4ca6f8dabc84

    • SHA512

      684594f1e6a28ec5419969e776c99e3c1e7841962ec36989bc59b5f00382d1333a369e6c591ae6c244138391786165e211909a6fe08815b90860acaa23e57745

    • SSDEEP

      49152:4GNnGn/hCcwVyU2550147MpxIhhChitdhi9a/:4o7yFwigHIvChChi98

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Execution

Windows Management Instrumentation

1
T1047

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

2
T1070

File Deletion

2
T1070.004

File and Directory Permissions Modification

1
T1222

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Discovery

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

Query Registry

4
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

4
T1082

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

2
T1490

Defacement

1
T1491

Tasks