Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    16-06-2024 11:57

General

  • Target

    2024-06-16_53e275e2b858405ce407fd21501b98a9_ryuk.exe

  • Size

    664KB

  • MD5

    53e275e2b858405ce407fd21501b98a9

  • SHA1

    55e72c38922f437e5cd6818161cb8d07d54cc60b

  • SHA256

    ede2d38d5b84b16e3bd0aabd1a94056996d7e03660027bc3f5897787986ecd5c

  • SHA512

    e69dd260fee0a48da82ca5e624cb5551b76eec0483a75c70f3a1d099e12363d85ef4fffb39dd976545005aab8f4ca3bfb060f44f93d8447fd9723dc46f63d427

  • SSDEEP

    12288:Fs9oO3KSoCU5qJSr1eyEUcNj3YO0eWNyg/AnHUzTshY8Vh:ZRSoCU5qJSr1eyE/IO0eWNyg/qeTyL

Malware Config

Signatures

  • Azov

    A wiper seeking only damage, first seen in 2022.

  • Renames multiple (1962) files with added filename extension

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Program Files directory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-16_53e275e2b858405ce407fd21501b98a9_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-16_53e275e2b858405ce407fd21501b98a9_ryuk.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    PID:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\7-Zip\Lang\RESTORE_FILES.txt

    Filesize

    2KB

    MD5

    78ede93114e65f9160fd03d3357c56e6

    SHA1

    88d531b101e57655f1d0d26c6b3257aa2468d460

    SHA256

    c97412fbf88da8f91099a52888dea4c3f222cd95af3e681e3271cbca8b6b7bb5

    SHA512

    074a4c741273902ccacb6f573b96d8accedb2ee405dbd04350cdbf54d180c1fd577a4e90c2aae26bf72f3782403f4494db6e3501a04cfd9d7d81a6bc14884b9d

  • memory/2740-3-0x00000000000F0000-0x00000000000F5000-memory.dmp

    Filesize

    20KB

  • memory/2740-2-0x00000000000D0000-0x00000000000D7000-memory.dmp

    Filesize

    28KB

  • memory/2740-4-0x000000013FBD0000-0x000000013FC67000-memory.dmp

    Filesize

    604KB

  • memory/2740-0-0x0000000000100000-0x0000000000104000-memory.dmp

    Filesize

    16KB

  • memory/2740-6-0x0000000000100000-0x0000000000104000-memory.dmp

    Filesize

    16KB

  • memory/2740-10-0x00000000000F0000-0x00000000000F5000-memory.dmp

    Filesize

    20KB

  • memory/2740-21-0x00000000000F0000-0x00000000000F5000-memory.dmp

    Filesize

    20KB