Resubmissions

19-04-2024 15:00

240419-sdfkksfc54 10

19-04-2024 14:52

240419-r82kvsfb29 7

19-04-2024 14:49

240419-r61wjsfa66 10

General

  • Target

    2024-04-19_ae28acab5a5cb7a2730ea8c264ccdf0d_cryptolocker

  • Size

    74KB

  • Sample

    240419-sdfkksfc54

  • MD5

    ae28acab5a5cb7a2730ea8c264ccdf0d

  • SHA1

    3102afce7196cef15cc8aa37809787c55e48eb8b

  • SHA256

    374ab80c3582d9276ec25e4fb660d5be7ebb6808492bd343fa6457a821612be6

  • SHA512

    bae7935e33a7bed8ba58c2049b9b05fbb7a1440327e74f1c9cb18d91542f440ae4d0733a8d1877f95de570fb8c6880b0691b2c4219c1cca82363986c623e8547

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsaleFj:1nK6a+qdOOtEvwDpjF

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\@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

      2024-04-19_ae28acab5a5cb7a2730ea8c264ccdf0d_cryptolocker

    • Size

      74KB

    • MD5

      ae28acab5a5cb7a2730ea8c264ccdf0d

    • SHA1

      3102afce7196cef15cc8aa37809787c55e48eb8b

    • SHA256

      374ab80c3582d9276ec25e4fb660d5be7ebb6808492bd343fa6457a821612be6

    • SHA512

      bae7935e33a7bed8ba58c2049b9b05fbb7a1440327e74f1c9cb18d91542f440ae4d0733a8d1877f95de570fb8c6880b0691b2c4219c1cca82363986c623e8547

    • SSDEEP

      1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsaleFj:1nK6a+qdOOtEvwDpjF

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

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

    • Adds Run key to start application

    • 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.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

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

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

1
T1490

Defacement

1
T1491

Tasks