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wpc_mystartsearch.exe

2417_wpc_mystartsearch

Fuyuan Zhou

The application wpc_mystartsearch.exe by Fuyuan Zhou has been detected as adware by 12 anti-malware scanners. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from www.girlwurina.com. While running, it connects to the Internet address 50.23.120.50-static.reverse.softlayer.com on port 80 using the HTTP protocol.
Publisher:
One Syn  (signed by Fuyuan Zhou)

Product:
2417_wpc_mystartsearch

Description:
Syn worker

Version:
6,3,7601,1372

MD5:
bc45329a2b86c08a8c8af73621206b26

SHA-1:
091b86b0cff6d4feaa9c81cd64ed85160b7ff1be

SHA-256:
7efffdfc88d3aa08f415745a7d10872fa945b18b1efa9e637c9ed6e5650d7f13

Scanner detections:
12 / 68

Status:
Adware

Analysis date:
4/14/2025 12:14:48 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Application.Elex.1
747

Agnitum Outpost
PUA.Mutabaha
7.1.1

AhnLab V3 Security
PUP/Win32.SearchHijacker
2015.01.19

Bitdefender
Gen:Application.Elex.1
1.0.20.95

Dr.Web
Adware.Mutabaha.98
9.0.1.019

F-Secure
Gen:Application.Elex.1
11.2015-19-01_2

G Data
Gen:Application.Elex
15.1.24

MicroWorld eScan
Gen:Application.Elex.1
16.0.0.57

Qihoo 360 Security
Win32/Application.33e
1.0.0.1015

Reason Heuristics
PUP.FuyuanZhou
15.2.14.11

Sophos
Elex
4.98

VIPRE Antivirus
BehavesLike.Win32.Malware.sfd (mx-v)
36774

File size:
301.1 KB (308,320 bytes)

Product version:
6,3,7601,1372

Copyright:
One Syn

Original file name:
Worker.exe

File type:
Executable application (Win32 EXE)

Language:
English (United Kingdom)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\temp\wpc_mystartsearch.exe

Digital Signature
Signed by:
Fuyuan Zhou

Authority:
DigiCert Inc

Valid from:
1/15/2015 11:00:00 AM

Valid to:
1/20/2016 11:00:00 PM

Subject:
CN=Fuyuan Zhou, O=Fuyuan Zhou, L=Jilin, S=Jilin, C=CN

Issuer:
CN=DigiCert SHA2 Assured ID Code Signing CA, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0B378A1487E66949A44C8CAE23820481

File PE Metadata
Compilation timestamp:
12/3/2014 4:17:43 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:eCs10Khp7xcLca6+hImxVtn3h0aaMnND1ews/Wo4NtWPeY+hbvakgNCpLPD:e910OZQcJS3h0pcR5seo4N4PhogGLPD

Entry address:
0xC3D0

Entry point:
E8, 90, 6E, 00, 00, E9, 7F, FE, FF, FF, CC, CC, CC, CC, CC, CC, 57, 56, 8B, 74, 24, 10, 8B, 4C, 24, 14, 8B, 7C, 24, 0C, 8B, C1, 8B, D1, 03, C6, 3B, FE, 76, 08, 3B, F8, 0F, 82, 68, 03, 00, 00, 0F, BA, 25, 54, 57, 42, 00, 01, 73, 07, F3, A4, E9, 17, 03, 00, 00, 81, F9, 80, 00, 00, 00, 0F, 82, CE, 01, 00, 00, 8B, C7, 33, C6, A9, 0F, 00, 00, 00, 75, 0E, 0F, BA, 25, C8, 30, 42, 00, 01, 0F, 82, DA, 04, 00, 00, 0F, BA, 25, 54, 57, 42, 00, 00, 0F, 83, A7, 01, 00, 00, F7, C7, 03, 00, 00, 00, 0F, 85, B8, 01, 00, 00...
 
[+]

Entropy:
5.9220

Code size:
94.5 KB (96,768 bytes)

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

http://www.girlwurina.com/.../wpc_mystartsearch.exe

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

TCP (HTTP):
Connects to 50.23.120.50-static.reverse.softlayer.com  (50.23.120.50:80)

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