Analysis

  • max time kernel
    81s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-es
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-eslocale:es-esos:windows10-2004-x64systemwindows
  • submitted
    08/01/2023, 15:28

General

  • Target
    sm-free-online.exe
  • Size 1.9MB
  • Sample230108-swclmshd4s
  • SHA256 0fcd10a01400f14d238e7793369acea183dc771f124400e3d525db3a0a8740be
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\sm-free-online.exe
    "C:\Users\Admin\AppData\Local\Temp\sm-free-online.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4392
    • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\OnlineInstall.exe
      "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\OnlineInstall.exe"
      2⤵
      • Executes dropped EXE
      PID:2748

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        OnlineInstall.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\OnlineInstall.exe
        • Size 4.0MB
        • SHA256 21ee807a609fb2329ad718d9b9f60f8f9a3676ad2d74cd669b4a40e106dd1800
        • MD5 SHA1 SHA512 SSDEEP

        OnlineInstall.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\OnlineInstall.exe
        • Size 4.0MB
        • SHA256 21ee807a609fb2329ad718d9b9f60f8f9a3676ad2d74cd669b4a40e106dd1800
        • MD5 SHA1 SHA512 SSDEEP

        Check_Selected.png

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\skin_anima\Check_Selected.png
        • Size 1KB
        • SHA256 0946efee104652f084c6fb2f271b06fcdfb50de893d64cd4287cc8e64deced92
        • MD5 SHA1 SHA512

        Close_Nomal.png

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\skin_anima\Close_Nomal.png
        • Size 1KB
        • SHA256 cbe96210dc6c28e21625c01db80e510152eecbf4ddbc75a30feeefb9ffa318ef
        • MD5 SHA1 SHA512

        Config.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\skin_anima\Config.ini
        • Size 403B
        • SHA256 f679fb8df3a97d0980856470dc5b46e473d2fdff1d5caf76728c0a150e77da71
        • MD5 SHA1 SHA512

        Dropdown_Nomal.png

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\skin_anima\Dropdown_Nomal.png
        • Size 1KB
        • SHA256 0f8ed5fdb53a8895e0159855268e0b8bb084766473ceb3ced8b96209844e359f
        • MD5 SHA1 SHA512

        Installnow_nomal.png

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\skin_anima\Installnow_nomal.png
        • Size 1KB
        • SHA256 7a668d959b0c980edb8fa1b1a359e881f7865a4ec78f879afb2460f99c45367c
        • MD5 SHA1 SHA512

        Language.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\skin_anima\Language.ini
        • Size 80B
        • SHA256 7fab414a11faf0e49e79edce34cbc2b4eac52217b9db9b8b26630d7db35a79a6
        • MD5 SHA1 SHA512

        Main.png

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\skin_anima\Main.png
        • Size 30KB
        • SHA256 745f841d49e71e1c6e27e580bedee03cecf1d5883f4a5e550b44fe28eee67cfc
        • MD5 SHA1 SHA512 SSDEEP

        MainUI.xml

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\skin_anima\MainUI.xml
        • Size 9KB
        • SHA256 ded685dc3d3aad3064b341e4969dd2beb91efd0fbfdb30eac990dc75a91b16bf
        • MD5 SHA1 SHA512 SSDEEP