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openalinstallerforwindowsv@2283_45929.exe

Downloader

Shanghai Yishen Network Technology Co., Ltd.

The application openalinstallerforwindowsv@2283_45929.exe by Shanghai Yishen Network Technology Co. has been detected as a potentially unwanted program by 10 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. This setup program installs potentially unwanted software on the user's PC at the same time as the expected/marketing software, without adequate consent. The program is typically installed via a form of malvertising The file has been seen being downloaded from down.xiazai2.net and multiple other hosts.
Publisher:
Shanghai Yishen Network Technology Co., Ltd.  (signed and verified)

Product:
Downloader

Version:
6.0.0.1

MD5:
50535b536f234dc56afcbbc0c9d9b9ea

SHA-1:
79803c553b2328bc75bef815d53c13ed57f82aa2

SHA-256:
e9ffdb0ea3d9cd388c39330065e2e368231e633eada0ad358bcb3b5d598ed180

Scanner detections:
10 / 68

Status:
Potentially unwanted

Analysis date:
11/5/2024 1:40:55 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2017.0.2703

Bkav FE
W32.HfsAdware
1.3.0.8042

Dr.Web
Adware.Softcnapp.1
9.0.1.0176

ESET NOD32
Win32/Packed.NSISmod.O suspicious (variant)
10.13698

IKARUS anti.virus
PUA.Softcnapp
t3scan.2.1.6.0

Malwarebytes
PUP.Optional.ChinAd
v2016.06.24.09

Microsoft Security Essentials
SoftwareBundler:Win32/Xiazai
1.1.12805.0

Panda Antivirus
Trj/Genetic.gen
16.06.24.09

Sophos
Xiazai (PUA)
4.98

Zillya! Antivirus
Downloader.XiazaiCRTD.Win32.217
2.0.0.2928

File size:
354.8 KB (363,360 bytes)

Product version:
6.0.0.1

Original file name:
Downloader

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Chinese (Simplified, PRC)

Common path:
C:\users\{user}\downloads\programs\openalinstallerforwindowsv@2283_45929.exe

Digital Signature
Signed by:
Shanghai Yishen Network Technology Co., Ltd.

Authority:
WoSign CA Limited

Valid from:
11/4/2015 12:27:27 PM

Valid to:
11/4/2016 12:27:27 PM

Subject:
CN="Shanghai Yishen Network Technology Co., Ltd.", O="Shanghai Yishen Network Technology Co., Ltd.", L=Shanghai, S=Shanghai, C=CN

Issuer:
CN=WoSign Class 3 Code Signing CA, O=WoSign CA Limited, C=CN

Serial number:
62B00AF7B42A239D1C1409007FAEFFB5

File PE Metadata
Compilation timestamp:
6/20/2016 11:42:23 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:P/AFZ8+aHhdj7QCi/l78mhb2PMfkJ0wFMLHzGeJudrmlopP4hc1HGr+Y8czEXzCd:P/qUdjkpqmAxFMLN8olwPoc1HvqEXGjX

Entry address:
0x331D

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 57, 33, DB, 68, 01, 80, 00, 00, 89, 5C, 24, 20, C7, 44, 24, 14, 38, 74, 40, 00, 89, 5C, 24, 1C, C6, 44, 24, 18, 20, FF, 15, 98, 70, 40, 00, FF, 15, 9C, 70, 40, 00, 66, 83, F8, 06, 74, 11, 53, E8, B3, 27, 00, 00, 3B, C3, 74, 07, 68, 00, 0C, 00, 00, FF, D0, BE, B0, 73, 40, 00, 56, E8, 2F, 27, 00, 00, 56, FF, 15, A0, 70, 40, 00, 8D, 74, 06, 01, 38, 1E, 75, EB, 6A, 0D, E8, 87, 27, 00, 00, 6A, 0B, E8, 80, 27, 00, 00, A3, 00, 6C, 44, 00, FF, 15, 30, 70, 40, 00, 53, FF, 15, 88...
 
[+]

Entropy:
7.8237

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

The file openalinstallerforwindowsv@2283_45929.exe has been seen being distributed by the following 4 URLs.

http://down.xiazai2.net/?/347431/.../???????????????????????????°?injustice??.exe

http://down.xiazai2.net/?/48726/.../?????????? 3.9 ???°?.exe

http://xiazai.zol.com.cn/down.php?softid=135373&subcateid=327&site=10&checkStr=bc29f4c14ea51514c&pos=downloader_main&rand=ab206b

http://xiazai.zol.com.cn/down.php?softid=135373&subcateid=327&site=10&checkStr=bc29f4c14ea51514c&pos=downloader_main&rand=4ba1cf

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