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yuyuset_26_162691.exe

Beijing YuJinCheng Technology Co., Ltd.

The application yuyuset_26_162691.exe by Beijing YuJinCheng Technology Co. has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.baidu.com.
Publisher:
Beijing YuJinCheng Technology Co., Ltd.  (signed and verified)

MD5:
0692ada2b4a9b577b69789a031c3d854

SHA-1:
25694e41b57008e82cf087460fa7e160d9f4d4dc

SHA-256:
19c5c70d9cdebc0bdf0713ea40a49f651964544419b9324c82ceeb5c85af5e98

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
11/5/2024 1:01:33 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.2.12.20

File size:
1.4 MB (1,518,400 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\yuyuset_26_162691.exe

Digital Signature
Signed by:
Beijing YuJinCheng Technology Co., Ltd.

Authority:
VeriSign, Inc.

Valid from:
7/26/2013 8:00:00 AM

Valid to:
7/27/2014 7:59:59 AM

Subject:
CN="Beijing YuJinCheng Technology Co., Ltd.", OU=Digital ID Class 3 - Microsoft Software Validation v2, O="Beijing YuJinCheng Technology Co., Ltd.", L=Beijing, S=Beijing, C=CN

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
733DD1F54CECC5BDAEF46648CD16CEBA

File PE Metadata
Compilation timestamp:
12/3/2011 12:33:15 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
7.10

Entry address:
0x3EDC

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, B1, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 90, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 90, 40, 00, 53, FF, 15, 90, 92, 40, 00, 6A, 08, A3, B8, 5F, 42, 00, E8, C0, 3E, 00, 00, A3, 04, 5F, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 90, 18, 42, 00, FF, 15, 6C, 91, 40, 00, 68, B8, B1, 40, 00, 68, 00, 57, 42, 00, E8, 73, 3B, 00, 00, FF, 15, B4, 90, 40, 00, BF, 00, B0, 42, 00, 50, 57, E8, 61, 3B, 00, 00...
 
[+]

Entropy:
7.9880

Packer / compiler:
Nullsoft install system v2.x

Code size:
29 KB (29,696 bytes)

The file yuyuset_26_162691.exe has been seen being distributed by the following URL.

http://www.baidu.com/cb.php?c=IgF_pyfqnHRkPW6YPWR0IZ0qnfK9ujYkn1czPWTs0Aw-5HD1nj01Pj00TAq15H63njmLPsK15yPBuHN9P1Nbn1NBPH-BrAR0uZfqnHn4rH01n1nzP6KdThsqpZwYTjCEQvwEIv38ph-8XgN9UMwMQhPEUiq8ugTEXgN4IgP-I7tzP-tkPWcvrHD8ug9-0ZFb5HT0mhYqn0KsTWYs0ZNGujYkn1b1nHfv0AqGujYzrjD3rfKWpyfqn1ndPHRk0AqLUWYzP1f4nfKWThnqnWm3PHn

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