Analysis

  • max time kernel
    14s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    06/03/2025, 18:01

General

  • Target

    2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe

  • Size

    1.4MB

  • MD5

    4e3dd5db8abc66706e31ef77f116c26d

  • SHA1

    70e3514896f97c1be4403bb3a14533ab2f4cf162

  • SHA256

    c20778aa9cf82bf564aff137834c1f5063f08170e5653d1de8fe689bbd7a6fca

  • SHA512

    982d1d9ffc27f2d25d2c47a1571657056abc38abe4d2ecab020b3644155b605b690b2c07d854a18a5224a8c8cd7b2992270300f7f136e40adae9ab7e7fc43fcf

  • SSDEEP

    24576:+PRvMqB+5iNPKI7sfP0YlVa6xL88MfVeAgw5Z0cwnGbw:+PRvMqyiNh7sf8MVaKLvMflgwf0uw

Malware Config

Signatures

  • Azov

    A wiper seeking only damage, first seen in 2022.

  • Azov family
  • 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 28 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2660
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2660 -s 168
      2⤵
        PID:2448

    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/2660-0-0x0000000000200000-0x0000000000204000-memory.dmp

      Filesize

      16KB

    • memory/2660-6-0x00000000001F0000-0x00000000001F5000-memory.dmp

      Filesize

      20KB

    • memory/2660-5-0x00000000001F0000-0x00000000001F5000-memory.dmp

      Filesize

      20KB

    • memory/2660-9-0x00000000001F0000-0x00000000001F5000-memory.dmp

      Filesize

      20KB

    • memory/2660-8-0x0000000000200000-0x0000000000204000-memory.dmp

      Filesize

      16KB

    • memory/2660-4-0x00000000001D0000-0x00000000001D7000-memory.dmp

      Filesize

      28KB

    • memory/2660-3-0x00000000001F0000-0x00000000001F5000-memory.dmp

      Filesize

      20KB