Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-03-2024 05:29

General

  • Target

    2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe

  • Size

    664KB

  • MD5

    27b6871781a6f167dc47e5ef5e3a3d6f

  • SHA1

    882cf9ffa4f734ed9fa03ffc4b3850eebd2c56a9

  • SHA256

    204e1125aab1074be4218c963c61a1dec1af0dd0b8df051f02d38fee15c623a3

  • SHA512

    95c37f097eb841f5770cbdcc44b38aebbefcb2a4fb1e4e6903a8b051a841f8dd94a77a4734807685d2c682cc00ea547367684d9986c135d89be1b68a34bc0352

  • SSDEEP

    12288:Ts9LjX1SoCU5qJSr1eJYUZ5isO0+ZNtgkAYHUzTshLkwEsYO+:gZSoCU5qJSr1eJYrv0+ZNtgkpeTcC

Malware Config

Signatures

  • Azov

    A wiper seeking only damage, first seen in 2022.

  • Renames multiple (1499) 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\2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    PID:4700

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/4700-0-0x000001AC23D80000-0x000001AC23D84000-memory.dmp

    Filesize

    16KB

  • memory/4700-2-0x00007FF6867E0000-0x00007FF686877000-memory.dmp

    Filesize

    604KB

  • memory/4700-3-0x000001AC23D50000-0x000001AC23D57000-memory.dmp

    Filesize

    28KB

  • memory/4700-7-0x000001AC23D70000-0x000001AC23D75000-memory.dmp

    Filesize

    20KB

  • memory/4700-6-0x000001AC23D80000-0x000001AC23D84000-memory.dmp

    Filesize

    16KB

  • memory/4700-11-0x000001AC23D70000-0x000001AC23D75000-memory.dmp

    Filesize

    20KB

  • memory/4700-10-0x000001AC23D70000-0x000001AC23D75000-memory.dmp

    Filesize

    20KB