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obs_setup.exe

Yu Bao

The application obs_setup.exe by Yu Bao has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. The file has been seen being downloaded from www.download-servers.com and multiple other hosts.
Publisher:
Yu Bao  (signed and verified)

Version:
201601201951

MD5:
02db4e79366485a8512ede6ba0743605

SHA-1:
9a53fde776db6465e9c3e71319e00f11c3264fb3

SHA-256:
eadb5827b91431bfa06851f6fd7d944e90d47510e890c7d544f0b4cd5d18e5c4

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
11/5/2024 9:56:48 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.YuBao.Installer (M)
16.1.21.5

File size:
1.4 MB (1,481,392 bytes)

Product version:
201601201951

Copyright:
Copyright 2015 Rafotech. All rights reserved

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\obs_setup.exe

Digital Signature
Signed by:
Yu Bao

Authority:
thawte, Inc.

Valid from:
1/20/2016 7:00:00 AM

Valid to:
10/21/2016 6:59:59 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:
33B08F2271169C4A724D437F83663F29

File PE Metadata
Compilation timestamp:
1/20/2016 6:52:18 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
24576:9tupyxpKqkARBfQGr0eWVzfRRaFjsZLs9KVZpgJHL0ipir:9/UERBroeYs98pgJr0ipir

Entry address:
0xB08EB

Entry point:
E8, A0, B5, 00, 00, E9, 7F, FE, FF, FF, CC, CC, CC, CC, CC, CC, 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, B0, C5, 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, E0, 39, 55, 00, 01, 0F, 82, B5, BA, 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...
 
[+]

Entropy:
6.7328

Code size:
1 MB (1,078,272 bytes)

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

http://www.download-servers.com/.../dl.php?r=vu_vo2_SO&rr=C&sct=AGR&sid=4C4C4544-0051-5410-8047-B6C04F335231

http://201.31.162.82/cache/d2xvc2nqkduarq.cloudfront.net/.../dam_setup.exe

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

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

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

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

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

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