General

  • Target

    PowerPoint Presentation.exe

  • Size

    3.9MB

  • Sample

    241018-j9p98awgnh

  • MD5

    65b4f971bda7abcb0bafd3c150d4c7fb

  • SHA1

    04cb42549c57ace1fb3edb0a5dbdfeb3c3069fa8

  • SHA256

    5f5ff4b40cbcaa1922811c43aaab17d6a71207e7775ed8bc68ae47a4463eb7be

  • SHA512

    3942f9821ba9d80480d06d9eb3f76fdb63e302e0ccedbf7601bc3235bfab68703f5b30685726aafe5adcb0816118d696949d452498fc57c4799262e477b483df

  • SSDEEP

    98304:E7NUcuNI0SaX/IdKH0Jxbxz9kqXf0Fh+Ev7Z8vpXS5:E7NF73g/IfJxbxBkSIh+Ev7mRS

Malware Config

Extracted

Path

C:\g6QpgrhJDdQZeF0\DECRYPT_YOUR_FILES.HTML

Ransom Note
<html> <head> <style> body{ background-color: #3366CC; } h1 { background-color: RGB(249, 201, 16); } p { background-color: maroon; color: white; } </style> </head> <body> <center> <h1><b> Attention ! All your files </b> have been encrypted. </h1></br> <p> Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets.</br> That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us.</br> Getting a decryption of your files is - SIMPLY task.</br></br> That all what you need:</br> 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] </br> 2. For test, decrypt 2 small files, to be sure that we can decrypt you files.</br> 3. Pay our services. </br> 4. GET software with passwords for decrypt you files.</br> 5. Make measures to prevent this type situations again.</br></br> IMPORTANT(1)</br> Do not try restore files without our help, this is useless, and can destroy you data permanetly.</br></br> IMPORTANT(2) </br> We Cant hold you decryption passwords forever. </br>ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. </p> <p> Your ID_KEY: <br> </p> <table width="1024" border="0"> <tbody> <tr> <td><p>FKv7edPrNRz8y1v8UN4CgqiiquGO9lYCWXRRO4A0pEN4KdTbxxjSXBLPHtKRwDOTw2SCFJJGvGXq3coyWyF9aNtMdRLBI1laNM0gRA2wiATwcz7LfWQy0VnF3cZ3OBjwTaSz2YyZPlVIj9TDU8VXfb0w7we54pS3hpn+AFhiGL+8LH4GxlAjzvauPU5mDR9HZJ/SKDN93NMJAQ9BlqTkCFhnx1YxExGkfNJPMlX/Q6hZl5QGTrI/PD6Qey3/2qTysRJdBTpTSyzx+G1kUGZJ9PPHvUPCIFpl0vf9UZ3uw/pAjlc0ziu7JQh2lUnXXdAs6U5bsXkrGRsmlJZ1Fx3V1g==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target

      PowerPoint Presentation.exe

    • Size

      3.9MB

    • MD5

      65b4f971bda7abcb0bafd3c150d4c7fb

    • SHA1

      04cb42549c57ace1fb3edb0a5dbdfeb3c3069fa8

    • SHA256

      5f5ff4b40cbcaa1922811c43aaab17d6a71207e7775ed8bc68ae47a4463eb7be

    • SHA512

      3942f9821ba9d80480d06d9eb3f76fdb63e302e0ccedbf7601bc3235bfab68703f5b30685726aafe5adcb0816118d696949d452498fc57c4799262e477b483df

    • SSDEEP

      98304:E7NUcuNI0SaX/IdKH0Jxbxz9kqXf0Fh+Ev7Z8vpXS5:E7NF73g/IfJxbxBkSIh+Ev7mRS

    • BadRabbit

      Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • InfinityLock Ransomware

      Also known as InfinityCrypt. Based on the open-source HiddenTear ransomware.

    • Modifies WinLogon for persistence

    • Troldesh, Shade, Encoder.858

      Troldesh is a ransomware spread by malspam.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (2383) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Blocklisted process makes network request

    • Contacts a large (1120) amount of remote hosts

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

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Creates a large amount of network flows

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

    • 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

    • Modifies WinLogon

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks