Analysis

  • max time kernel
    143s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-08-2024 07:37

General

  • Target

    2024-08-12_9c37857ff85b3e358ba221c0ba1a6bec_ryuk.exe

  • Size

    1.4MB

  • MD5

    9c37857ff85b3e358ba221c0ba1a6bec

  • SHA1

    821504b4c92f6387a78f4a6125a8c5bc3e9ede4d

  • SHA256

    ab7b185b86821c2c881998f9967e5ca4a8894db6312eafe2cb872335941826dc

  • SHA512

    13c2cc058352a382704e5702764d24389cf3b1603ec002ab10d485440f6ad2e1bfbe651e5551d3ed726ca2073f79b395abfd93c843935832909149a70c07a430

  • SSDEEP

    24576:83UfD2wPCKqqc4UhUEdcfGCNhKsKEfVeAgw5Z0UMYTbKv:kUfD23KqCUhU0eGCbKBEflgwf0UMSbKv

Malware Config

Signatures

  • Azov

    A wiper seeking only damage, first seen in 2022.

  • Renames multiple (121) files with added filename extension

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

  • 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\2024-08-12_9c37857ff85b3e358ba221c0ba1a6bec_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-12_9c37857ff85b3e358ba221c0ba1a6bec_ryuk.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    PID:4428

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/4428-0-0x00000239BD1C0000-0x00000239BD1C4000-memory.dmp

    Filesize

    16KB

  • memory/4428-4-0x00000239BD190000-0x00000239BD197000-memory.dmp

    Filesize

    28KB

  • memory/4428-6-0x00000239BD1C0000-0x00000239BD1C4000-memory.dmp

    Filesize

    16KB

  • memory/4428-5-0x00000239BD1B0000-0x00000239BD1B5000-memory.dmp

    Filesize

    20KB

  • memory/4428-13-0x00000239BD1B0000-0x00000239BD1B5000-memory.dmp

    Filesize

    20KB