Overview

overview

10

Static

static

3

7a5a4f8d21...1e.exe

windows10-2004-x64

10

7a5a4f8d21...1e.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/09/2026, 07:56

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General

  • Target
    7a5a4f8d21d7e1482a6530d7399ac934d1e756965059e3f6339c560042f23c1e.exe
  • Size 4.0MB
  • Sample260908-js2a6aea52
  • SHA256 7a5a4f8d21d7e1482a6530d7399ac934d1e756965059e3f6339c560042f23c1e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryfatalratinfostealerpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

  • fatalrat

C2

  • http://www.taobao.com/help/getip.php

  • https://vv.video.qq.com/checktime?otype=ojson

  • https://searchplugin.csdn.net/api/v1/ip/get?ip=

  • https://www.ipplus360.com/getIP

Signatures

  • Family: FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

    stealertrojanfatalrat
  • Fatal Rat payload 1 IoCs
    ratinfostealer
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Program Files directory 6 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 2 IoCs
    defense_evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a5a4f8d21d7e1482a6530d7399ac934d1e756965059e3f6339c560042f23c1e.exe
    "C:\Users\Admin\AppData\Local\Temp\7a5a4f8d21d7e1482a6530d7399ac934d1e756965059e3f6339c560042f23c1e.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4340
    • C:\Program Files (x86)\Dropbox\Update\1.3.5055.162\DropboxCrashHandler.exe
      "C:\Program Files (x86)\Dropbox\Update\1.3.5055.162\DropboxCrashHandler.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4004
  • C:\Program Files (x86)\Dropbox\Update\1.3.5055.162\DropboxCrashHandler.exe
    "C:\Program Files (x86)\Dropbox\Update\1.3.5055.162\DropboxCrashHandler.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    PID:6044
  • C:\Windows\SysUtilSvc.exe
    C:\Windows\SysUtilSvc.exe
    1⤵
    • Executes dropped EXE
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:1312

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        DropboxCrashHandler.exe
        • Path C:\Program Files (x86)\Dropbox\Update\1.3.5055.162\DropboxCrashHandler.exe
        • Size 130KB
        • SHA256 e7141aeb22ea3165a4f7fb8c4d210151575f1b95ef545e0978a2174598a08265
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        SVP7.PNG
        • Path C:\Program Files (x86)\Dropbox\Update\1.3.5055.162\SVP7.PNG
        • Size 195KB
        • SHA256 a9ea7566f183454d25ff53b6fc20d2fde9353ff37f78fd8757fb9d8f4f33d1cb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        goopdate.dll
        • Path C:\Program Files (x86)\Dropbox\Update\1.3.5055.162\goopdate.dll
        • Size 42KB
        • SHA256 a7d07b13f6fc72ff905c69579f9be0cec237fc6df97b0d24e51ba44129831caa
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        3FE2BD01AB6BC312BF0DADE7F797388F_D700B3BF42AE699B26DDBDD3E4CB7EDD
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3FE2BD01AB6BC312BF0DADE7F797388F_D700B3BF42AE699B26DDBDD3E4CB7EDD
        • Size 471B
        • SHA256 85669d3ad083f83756d1d39836377449bb3d0ef2c4e28ca9a7aabba4f5242842
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        8A7891822FCFF127E4EADADE9757112B
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8A7891822FCFF127E4EADADE9757112B
        • Size 2KB
        • SHA256 887a51f0bb296758a866a423842e1486159d518eaf0ed0322f8f41287cbae311
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        3FE2BD01AB6BC312BF0DADE7F797388F_D700B3BF42AE699B26DDBDD3E4CB7EDD
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3FE2BD01AB6BC312BF0DADE7F797388F_D700B3BF42AE699B26DDBDD3E4CB7EDD
        • Size 402B
        • SHA256 df7b5889c7a60657881188ac0ceba2a0f35748485f2ef17b92b2db1b2a616f4a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        8A7891822FCFF127E4EADADE9757112B
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8A7891822FCFF127E4EADADE9757112B
        • Size 246B
        • SHA256 0159f904e18e6695b71693fe77170963506ff508a9e2f27bc6872fedaa9004d3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        SysUtilSvc.exe
        • Path C:\Windows\SysUtilSvc.exe
        • Size 4.0MB
        • SHA256 7a5a4f8d21d7e1482a6530d7399ac934d1e756965059e3f6339c560042f23c1e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/4004-16-0x0000000010000000-0x0000000010030000-memory.dmp
        Download

        memory/4004-18-0x0000000000DC0000-0x0000000000DE9000-memory.dmp
        Download