Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    05-06-2024 21:05

General

  • Target

    2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe

  • Size

    664KB

  • MD5

    8a4b49ead004283b8c8f5324dbf93189

  • SHA1

    8efe54837faf263d1f336d3b4da24cf497f614bd

  • SHA256

    a68fac4e3592ccf103c7db6d5302634233f4fce7a4341f0696fe52512d401512

  • SHA512

    571950c149095cff7fff2e61d5fb68756e7946b8d189307790b02b1a19c94f978b405cbe68637b4a811fcdfc76508e6d4cdb308d91e28b51193bb12a662fc081

  • SSDEEP

    12288:Ls9YrzrSoCU5qJSr1eJXU3L0amgJmw6gqAHHUzTshcvNQC:frSoCU5qJSr1eJXNhgJmw6gqmeTZvNj

Malware Config

Signatures

  • Azov

    A wiper seeking only damage, first seen in 2022.

  • Renames multiple (1097) 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\2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    PID:2928

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/2928-0-0x0000000000100000-0x0000000000104000-memory.dmp

    Filesize

    16KB

  • memory/2928-3-0x000000013F900000-0x000000013F997000-memory.dmp

    Filesize

    604KB

  • memory/2928-2-0x00000000000D0000-0x00000000000D7000-memory.dmp

    Filesize

    28KB

  • memory/2928-8-0x00000000000F0000-0x00000000000F5000-memory.dmp

    Filesize

    20KB

  • memory/2928-15-0x00000000000F0000-0x00000000000F5000-memory.dmp

    Filesize

    20KB

  • memory/2928-13-0x00000000000F0000-0x00000000000F5000-memory.dmp

    Filesize

    20KB

  • memory/2928-9-0x0000000000100000-0x0000000000104000-memory.dmp

    Filesize

    16KB