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mediacreationtool.exe

Windows 8.1 Assistant

Microsoft Corporation

This is a setup program which is used to install the application. The file has been seen being downloaded from onedrive.live.com and multiple other hosts.
Publisher:
Microsoft Corporation  (signed and verified)

Product:
Microsoft® Windows® Operating System

Description:
Windows 8.1 Assistant

Version:
6.3.9600.17474 (winblue_r5.141027-1925)

MD5:
98fae4e372bf94d7422a8b2296ce3c62

SHA-1:
0067d7cfa4bd0bffee71ba276a108c0db24f4dcf

SHA-256:
bc8902f681f142dca2fa4d6a3dcee359353169336741e6b5f5aee5c6c89b1004

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)
Whitelisted  (by digital signature)

Analysis date:
4/26/2024 9:48:55 PM UTC  (today)

File size:
1.3 MB (1,322,960 bytes)

Product version:
6.3.9600.17474

Copyright:
© Microsoft Corporation. All rights reserved.

Original file name:
Windows 8.1 Assistant

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\mediacreationtool.exe

Digital Signature
Signed by:
Microsoft Corporation

Authority:
Microsoft Corporation

Valid from:
4/22/2014 12:39:00 PM

Valid to:
7/22/2015 12:39:00 PM

Subject:
CN=Microsoft Corporation, OU=MOPR, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

Issuer:
CN=Microsoft Code Signing PCA, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

Serial number:
33000000CA6CD5321235C4E1550001000000CA

File PE Metadata
Compilation timestamp:
10/28/2014 12:05:52 AM

OS version:
6.3

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
24576:DzV2Y2f7tG+dHtvCyE+oYI4IOLwr4J8r+9ab4gERDv9kOgMkqy/p:0bDYGHtqYI4IOt8r+9c69kFMSx

Entry address:
0x7A70

Entry point:
E8, 43, 08, 00, 00, E9, 05, 00, 00, 00, CC, CC, CC, CC, CC, 6A, 5C, 68, 68, B4, 40, 00, E8, 01, 09, 00, 00, 83, 65, DC, 00, 83, 65, FC, 00, 8D, 45, 94, 50, FF, 15, 6C, D0, 40, 00, C7, 45, FC, FE, FF, FF, FF, 33, DB, 43, 89, 5D, FC, 64, A1, 18, 00, 00, 00, 8B, 78, 04, 33, F6, BA, E4, CB, 40, 00, 8B, CF, 33, C0, F0, 0F, B1, 0A, 85, C0, 74, 06, 3B, C7, 75, 14, 8B, F3, 39, 1D, E8, CB, 40, 00, 75, 17, 6A, 1F, E8, 6F, 06, 00, 00, 59, EB, 3C, 68, E8, 03, 00, 00, FF, 15, 68, D0, 40, 00, EB, CA, 83, 3D, E8, CB, 40...
 
[+]

Entropy:
7.7585  (probably packed)

Code size:
41.5 KB (42,496 bytes)

The file mediacreationtool.exe has been seen being distributed by the following 11 URLs.

https://onedrive.live.com/download.aspx?cid=B96AA171B7687FB7&resid=B96AA171B7687FB7!1468&canary=eGqbgBPx66cxlJiindprNOeng/.../OUAKVFUzRwA=2&ithint=.exe

https://onedrive.live.com/download.aspx?cid=B96AA171B7687FB7&resid=B96AA171B7687FB7!1468&ithint=.exe

https://onedrive.live.com/download.aspx?cid=B96AA171B7687FB7&resid=B96AA171B7687FB7!1468

http://download901.mediafire.com/heqgq8r7hcsg/.../Windows 8.1 Installation Media Creation Tool [ed3s.com].exe

http://download.softpedia.com/dl/6ca4bf1d1a911cc0b6b9bed74003dac5/55a5917a/100248291/software/.../mediacreationtool.exe

https://go.microsoft.com/fwlink/.../?LinkId=510815

http://202.65.242.13/.../mediacreationtool.exe

http://www.eightforums.com/redirect-to/?redirect=http://go.microsoft.com/fwlink/.../?LinkId=510815

http://dl.cdn.chip.de/downloads/.../mediacreationtool.exe

http://web.esd.microsoft.com/W9TPE/0ABA00DD20413FB6425A0D45222C562B/.../mediacreationtool.exe

http://go.microsoft.com/fwlink/.../?LinkId=510815

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