Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/03/2025, 06:47

General

  • Target

    2025-03-12_9f4e8412865b9d84551cc7083ae4877b_ryuk.exe

  • Size

    664KB

  • MD5

    9f4e8412865b9d84551cc7083ae4877b

  • SHA1

    9becad68eb352f1e746f8bb9064502068332e96e

  • SHA256

    367f9d19448c3bc5f2b4376e5e4510af695c06f6ac1efbe8c50cb55f2d5285c9

  • SHA512

    5edfe01360633e78835a18b3c283d4c5c0f13868ee23117043ea0740bdab646d6f83f4861f0904c8a9d8d96ee36a1e1490f6eaa4b37d20613c035f998f3023c7

  • SSDEEP

    12288:Ws9lwv1SoCU5qJSr1eMWUngh5oi7Ua0giAbHUzTshNIWa4YIn0/P:vYSoCU5qJSr1eMWF6i7Ua0gi+eTiJamE

Malware Config

Signatures

  • Azov

    A wiper seeking only damage, first seen in 2022.

  • Azov family
  • Renames multiple (671) files with added filename extension

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

  • Reads user/profile data of web browsers 3 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\2025-03-12_9f4e8412865b9d84551cc7083ae4877b_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-12_9f4e8412865b9d84551cc7083ae4877b_ryuk.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    PID:2656

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/2656-0-0x00000000001D0000-0x00000000001D7000-memory.dmp

    Filesize

    28KB

  • memory/2656-1-0x0000000000480000-0x0000000000485000-memory.dmp

    Filesize

    20KB

  • memory/2656-2-0x0000000000490000-0x0000000000494000-memory.dmp

    Filesize

    16KB

  • memory/2656-6-0x0000000000480000-0x0000000000485000-memory.dmp

    Filesize

    20KB

  • memory/2656-5-0x0000000000480000-0x0000000000485000-memory.dmp

    Filesize

    20KB

  • memory/2656-4-0x000000013FB50000-0x000000013FBE7000-memory.dmp

    Filesize

    604KB

  • memory/2656-8-0x0000000000480000-0x0000000000485000-memory.dmp

    Filesize

    20KB

  • memory/2656-9-0x0000000000490000-0x0000000000494000-memory.dmp

    Filesize

    16KB