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Windows7 Master.exe

Windows7 Master

Qingdao Ruanmei Network Technology Co.,Ltd.

The application Windows7 Master.exe by Qingdao Ruanmei Network Technology Co.,Ltd has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. While running, it connects to the Internet address pc-b.bitgravity.com on port 80 using the HTTP protocol.
Publisher:
Ruanmei.com  (signed by Qingdao Ruanmei Network Technology Co.,Ltd.)

Product:
Windows7 Master

Version:
1.0.0.25

MD5:
65faf48daeaaa4c4af00866255ade56f

SHA-1:
5a0231734cb16ad8f0701f36ea406cb19509ff57

SHA-256:
5125a0681bad32f9c7e188fd24160a7c254f4e700984862d0714f9c0ca8d800b

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:
4/26/2024 10:55:18 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.QingdaoRuanmeiNetworkTechnologyCoLtd.P
14.6.12.3

File size:
2.2 MB (2,294,656 bytes)

Product version:
1.0.0.25

Copyright:
Copyright © ruanmei.com 2007-2009

Original file name:
Windows7 Master.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\windows7master\windows7 master.exe

Digital Signature
Signed by:
Qingdao Ruanmei Network Technology Co.,Ltd.

Authority:
VeriSign, Inc.

Valid from:
6/16/2011 8:00:00 AM

Valid to:
6/16/2014 7:59:59 AM

Subject:
CN="Qingdao Ruanmei Network Technology Co.,Ltd.", OU=Digital ID Class 3 - Microsoft Software Validation v2, O="Qingdao Ruanmei Network Technology Co.,Ltd.", L=Qingdao, S=Shandong, 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:
6E1C43A41D4DDC805A8561C69CEDA182

File PE Metadata
OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
49152:66XH2qkPqSySMzQ7w2v3kTaijdj1vYvuBeB1uhuhuhuhuhuhuhuhuhuhuhuhueBF:BXWqkPLySMzQ7w2v3Hijdj1YvuBeB1MK

Entry address:
0x21EDE7

Entry point:
FF, 25, 00, 20, 62, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 90, 90, 90, 90, 90, 90, 00, 00, F8, 1C, 13, 00, 90, 90, 90, 90, 90, 90, 00, 00, 42, 00, 43, 00, 44, 00, 46, 00, 47, 00, 48, 00, 4A, 00, 4B, 00, 4D, 00, 50, 00, 51, 00, 52, 00, 54, 00, 56, 00, 57, 00, 58, 00, 59, 00, 32, 00, 33, 00, 34, 00, 36, 00, 37, 00, 38, 00, 39, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
7.4309

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
2.1 MB (2,220,032 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to a23-41-139-27.deploy.static.akamaitechnologies.com  (23.41.139.27:80)

TCP (HTTP):
Connects to pc-b.bitgravity.com  (64.185.181.238:80)

TCP (HTTP):
Connects to a23-41-75-27.deploy.static.akamaitechnologies.com  (23.41.75.27:80)

Remove Windows7 Master.exe - Powered by Reason Core Security
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