Resubmissions

05-08-2024 04:54

240805-fjvkga1eqb 10

25-06-2024 22:21

240625-19myjazarq 10

Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    25-06-2024 22:21

General

  • Target

    2024-06-25_1ce3b67e179c8420bd5b31e75b4427ca_blackcat_maui_nokoyawa_wannacry.exe

  • Size

    13.4MB

  • MD5

    1ce3b67e179c8420bd5b31e75b4427ca

  • SHA1

    4090622f0eadc1b420aa5d55e31ca5cd45e05f12

  • SHA256

    df9498892ae72f611128c9a8bc57b93964f34cc235f5aaf57fe10fb2b3c69aa3

  • SHA512

    c708cc271fad1ecd29fccb010a34f54ba7b885d8827351a5d8be49f4781185248e789c3e35fa1c7862fdc0bf303e1d97f2585023e0b9fd14db3181f55d276f5f

  • SSDEEP

    98304:aRqeZPPm0Rgmt7M17Lu1zdfj7zyg5oo5AZx8U8qPoBhLTlL4DQWVYHL9fu4h84MR:aMygJ9edfbhSo5Kp8qPKlL8QgYVhqn

Malware Config

Signatures

  • Azov

    A wiper seeking only damage, first seen in 2022.

  • Renames multiple (1307) 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\2024-06-25_1ce3b67e179c8420bd5b31e75b4427ca_blackcat_maui_nokoyawa_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-25_1ce3b67e179c8420bd5b31e75b4427ca_blackcat_maui_nokoyawa_wannacry.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    PID:2208

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/2208-0-0x0000000000310000-0x0000000000314000-memory.dmp

    Filesize

    16KB

  • memory/2208-2-0x0000000140000000-0x000000014003E000-memory.dmp

    Filesize

    248KB

  • memory/2208-7-0x00000000001E0000-0x00000000001E7000-memory.dmp

    Filesize

    28KB

  • memory/2208-18-0x0000000000200000-0x0000000000205000-memory.dmp

    Filesize

    20KB

  • memory/2208-4-0x0000000000200000-0x0000000000205000-memory.dmp

    Filesize

    20KB

  • memory/2208-9-0x0000000000310000-0x0000000000314000-memory.dmp

    Filesize

    16KB

  • memory/2208-8-0x0000000000200000-0x0000000000205000-memory.dmp

    Filesize

    20KB