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pcmastersetup_u117.exe

Qingdao Ruanmei Network Technology Co.,Ltd.

The application pcmastersetup_u117.exe by Qingdao Ruanmei Network Technology Co.,Ltd has been detected as adware by 5 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from dlsw.baidu.com and multiple other hosts.
Publisher:
Qingdao Ruanmei Network Technology Co.,Ltd.  (signed and verified)

MD5:
a0f7f0e58cbea94a08dce05f064f8de1

SHA-1:
778434033dc0e948f63aecf3c79d9f993ad7bcd1

SHA-256:
d95f9c1af22820e9f60c72feb0b1ad396c3aff53b25bb0e73caea264702cfc54

Scanner detections:
5 / 68

Status:
Adware

Analysis date:
11/5/2024 10:34:18 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
DLOADER.Trojan
9.0.1.0365

G Data
Win32.Trojan.Agent.6YOJG1
14.12.24

Reason Heuristics
PUP.Installer.QingdaoRuanmeiNetworkTechnologyCoLtd.S
14.12.31.1

Rising Antivirus
PE:Trojan.Win32.Generic.1293B169!311669097
23.00.65.141229

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.3

File size:
15.9 MB (16,649,808 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Chinese (Simplified, PRC)

Common path:
C:\users\{user}\downloads\pcmastersetup_u117.exe

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

Authority:
VeriSign, Inc.

Valid from:
7/25/2014 8:00:00 AM

Valid to:
8/24/2017 7:59:59 AM

Subject:
CN="Qingdao Ruanmei Network Technology Co.,Ltd.", OU=IT, 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:
41E4F3478CEB8F3B8B87E0AB04A7ACCF

File PE Metadata
Compilation timestamp:
9/26/2011 9:21:33 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
393216:6COsvwWZnQ3PHkwhyorlp+9M39urZAgIHxKfAk31gBdeOweZjs:isvwsUruaurZdfP1Ohts

Entry address:
0x39E3

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, D8, 91, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 80, 40, 00, 55, FF, 15, C0, 82, 40, 00, 6A, 08, A3, B8, 2E, 47, 00, E8, 37, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, 2D, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 93, 40, 00, FF, 15, 84, 81, 40, 00, 68, 04, 93, 40, 00, 68, C0, AD, 46, 00, E8, 19, 27, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 30, 4C, 00, 57, E8, 07, 27, 00, 00...
 
[+]

Entropy:
7.9997

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

The file pcmastersetup_u117.exe has been seen being distributed by the following 2 URLs.

http://dlsw.baidu.com/sw-search-sp/soft/a0/.../pcmaster_V6.0.7.3_setup.1417767472.exe

http://down.ruanmei.com/tweakcube/.../pcmastersetup_u117.exe

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