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sto_setup.exe

Yu Bao

The application sto_setup.exe by Yu Bao has been detected as a potentially unwanted program by 2 anti-malware scanners. The file has been seen being downloaded from winipoly.me and multiple other hosts.
Publisher:
Yu Bao  (signed and verified)

Version:
20151230183651

MD5:
e9d1956d768d1e99bfefcdd510a5473d

SHA-1:
a9cc088817bcc2d1ff2a2f67a9985dacccd7d5c7

SHA-256:
24176ed00a83d7ed817275d479bf974e4f24f5aaea0238026f90628be80dd50b

Scanner detections:
2 / 68

Status:
Potentially unwanted

Analysis date:
12/24/2024 12:25:36 PM UTC  (today)

Scan engine
Detection
Engine version

Malwarebytes
PUP.Optional.YesSearches
v2016.01.02.04

Reason Heuristics
PUP.YuBao.Installer (M)
16.1.6.0

File size:
1.4 MB (1,481,400 bytes)

Product version:
20151230183651

Copyright:
Copyright 2015 Rafotech. All rights reserved

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\sto_setup.exe

Digital Signature
Signed by:
Yu Bao

Authority:
thawte, Inc.

Valid from:
10/21/2015 3:00:00 AM

Valid to:
10/21/2016 2:59:59 AM

Subject:
CN=Yu Bao, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
17C6AE891D357C16ADC447794EA40FC5

File PE Metadata
Compilation timestamp:
12/30/2015 1:37:13 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
24576:ct/dHhxNWpPYVV5oSLYnIVRnW1Op5YF6tqSCpXCynTpDimM:ctBN4QVVJLYAAqXCpXCy1DimM

Entry address:
0xB07D1

Entry point:
E8, D5, B4, 00, 00, E9, 7F, FE, FF, FF, CC, CC, CC, CC, CC, 8B, 54, 24, 0C, 8B, 4C, 24, 04, 85, D2, 74, 7F, 0F, B6, 44, 24, 08, 0F, BA, 25, 24, CD, 55, 00, 01, 73, 0D, 8B, 4C, 24, 0C, 57, 8B, 7C, 24, 08, F3, AA, EB, 5D, 8B, 54, 24, 0C, 81, FA, 80, 00, 00, 00, 7C, 0E, 0F, BA, 25, 20, 3B, 55, 00, 01, 0F, 82, F0, B9, 00, 00, 57, 8B, F9, 83, FA, 04, 72, 31, F7, D9, 83, E1, 03, 74, 0C, 2B, D1, 88, 07, 83, C7, 01, 83, E9, 01, 75, F6, 8B, C8, C1, E0, 08, 03, C1, 8B, C8, C1, E0, 10, 03, C1, 8B, CA, 83, E2, 03, C1...
 
[+]

Entropy:
6.7342

Code size:
1 MB (1,077,760 bytes)

The file sto_setup.exe has been seen being distributed by the following 7 URLs.

http://winipoly.me/.../310714_a10.exe

https://d2xvc2nqkduarq.cloudfront.net/.../obs_setup.exe

http://winipoly.me/.../310714_a10.exe

http://d2xvc2nqkduarq.cloudfront.net/.../dam_setup.exe

http://ollyfile.me/.../310714_a10.exe

http://d2xvc2nqkduarq.cloudfront.net/.../setup.exe

http://d2xvc2nqkduarq.cloudfront.net/.../obs_setup.exe

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