Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-07-2024 06:27

General

  • Target

    479d0947816467d562bf6d24b295bf50512176a2d3d955b8f4d932aea2378227.exe

  • Size

    81KB

  • MD5

    059ac4569026c1b74e541d98b6240574

  • SHA1

    2a9c036ed1f2a86bec63ead2f2d2e6412faf6ada

  • SHA256

    479d0947816467d562bf6d24b295bf50512176a2d3d955b8f4d932aea2378227

  • SHA512

    3f9e1af50f94f9e7dcc938939588294271f31b0eec36497a83a380fa03bfbee44ca51a5dc4d04f440d0787df5c8406639ab8644d617d3cdec0de1b06385b5d0d

  • SSDEEP

    1536:+eDgKdeWMHH5t1fzDhx6uEY5mZJtBtVa3hb7mS:rDHsHZt1LDeUyLVaE

Score
9/10

Malware Config

Signatures

  • Renames multiple (5820) files with added filename extension

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

  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\479d0947816467d562bf6d24b295bf50512176a2d3d955b8f4d932aea2378227.exe
    "C:\Users\Admin\AppData\Local\Temp\479d0947816467d562bf6d24b295bf50512176a2d3d955b8f4d932aea2378227.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2224
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3648
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\README.TXT
    1⤵
    • Opens file in notepad (likely ransom note)
    PID:1900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\README.TXT

    Filesize

    1KB

    MD5

    e2bd1addcfe55f5b6ef72496beeaddf9

    SHA1

    3287c232fc34bdebb0744357807a33339d5547e6

    SHA256

    b720d5c1f063941d77082aecd8565e2ba8513a26c60e6737bb05b4789dfff5a0

    SHA512

    8b0a176d555f27e9fb6af0ad84114ab71d12ab8fda3d9a1720ed953c24168548fa0c85fa8e2e4d3001a7b64d6ada902128eacae63682b195813f2bd44a0bce88