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llys_istartsurf.exe

4845_tugss_istartsurf

Yuxin WANG

The application llys_istartsurf.exe by Yuxin WANG has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from d2drfrdurj6mvo.cloudfront.net.
Publisher:
Yuxin WANG  (signed and verified)

Product:
4845_tugss_istartsurf

Description:
Installer Module

Version:
1, 0, 0, 1

MD5:
dee46f6b9c5ce14daa66dd4ad396aa30

SHA-1:
5255da141e8e3e8bd349307d94bc1bc417379098

SHA-256:
a869080f2eaa0de921f2b328969ff36674fc144d1887b2dfc567118883e7842c

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:
6/2/2024 9:08:00 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX.YuxinWANG.Installer (M)
16.1.11.3

File size:
536.2 KB (549,112 bytes)

Product version:
1, 0, 0, 1

Copyright:
Copyright 2015

Original file name:
Installer.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

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

Digital Signature
Signed by:
Yuxin WANG

Authority:
thawte, Inc.

Valid from:
10/12/2015 7:00:00 PM

Valid to:
8/12/2017 6:59:59 PM

Subject:
CN=Yuxin WANG, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
4EE38325A72CE30E8DD31011628FCDB3

File PE Metadata
Compilation timestamp:
9/11/2015 4:27:29 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
12288:6TwsAln1giCPA6W8XHFlrZtTVq2QBOiVuAC91hrrrrMH:mDbPW+pZtYlBOigAC91eH

Entry address:
0x2E557

Entry point:
E8, C7, AD, 00, 00, E9, 39, FE, FF, FF, 55, 8B, EC, 56, 57, 8B, 7D, 08, 85, FF, 74, 13, 8B, 4D, 0C, 85, C9, 74, 0C, 8B, 55, 10, 85, D2, 75, 1A, 33, C0, 66, 89, 07, E8, 64, 27, 00, 00, 6A, 16, 5E, 89, 30, E8, 04, 2E, 00, 00, 8B, C6, 5F, 5E, 5D, C3, 8B, F7, 66, 83, 3E, 00, 74, 06, 83, C6, 02, 49, 75, F4, 85, C9, 74, D4, 2B, F2, 0F, B7, 02, 66, 89, 04, 16, 8D, 52, 02, 66, 85, C0, 74, 03, 49, 75, EE, 33, C0, 85, C9, 75, D0, 66, 89, 07, E8, 20, 27, 00, 00, 6A, 22, EB, BA, 55, 8B, EC, 56, 8B, 75, 08, 85, F6, 74...
 
[+]

Entropy:
5.9909

Code size:
344 KB (352,256 bytes)

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

http://d2drfrdurj6mvo.cloudfront.net/.../llys_istartsurf.exe

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