Resubmissions

26-04-2024 23:55

240426-3yr48aff3z 10

26-04-2024 23:41

240426-3pvhzsfd5w 10

General

  • Target

    142a4cc96d518e6005b3e3f14c9435ac9e908d4700672f9d8cd12e333830340d

  • Size

    4.2MB

  • Sample

    240426-3yr48aff3z

  • MD5

    d64e66f33ab2867cb03fafd0fd9f199f

  • SHA1

    b49802537fa13de4501101403959b1b87900c172

  • SHA256

    142a4cc96d518e6005b3e3f14c9435ac9e908d4700672f9d8cd12e333830340d

  • SHA512

    a1acfdb815617dd98101d29e0ff529297484cac1ac5ea177afd9d27a9d1b468bf2bec0cf88cf77e53917fb72527eab1fc14ca8eff601ef42b03590fbbec71fc4

  • SSDEEP

    98304:AkAjdDPAeC2B02wyEqB4QU18FBwX92iJvUa6o386BoSeiwZU4mjQxQ3:ruPAV2B0NRqB88FqJvA6j4GQq

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\Temp1_WannaCrypt0r.zip\@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

      142a4cc96d518e6005b3e3f14c9435ac9e908d4700672f9d8cd12e333830340d

    • Size

      4.2MB

    • MD5

      d64e66f33ab2867cb03fafd0fd9f199f

    • SHA1

      b49802537fa13de4501101403959b1b87900c172

    • SHA256

      142a4cc96d518e6005b3e3f14c9435ac9e908d4700672f9d8cd12e333830340d

    • SHA512

      a1acfdb815617dd98101d29e0ff529297484cac1ac5ea177afd9d27a9d1b468bf2bec0cf88cf77e53917fb72527eab1fc14ca8eff601ef42b03590fbbec71fc4

    • SSDEEP

      98304:AkAjdDPAeC2B02wyEqB4QU18FBwX92iJvUa6o386BoSeiwZU4mjQxQ3:ruPAV2B0NRqB88FqJvA6j4GQq

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies Windows Firewall

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

File and Directory Permissions Modification

1
T1222

Modify Registry

2
T1112

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

1
T1490

Defacement

1
T1491

Tasks