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obw_istartsurf.exe

4802_obw_istartsurf

Thinknice Co., Limited

The application obw_istartsurf.exe by Thinknice Co., Limited has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a setup program which is used to install the application. The file has been seen being downloaded from d2drfrdurj6mvo.cloudfront.net.
Publisher:
WillLink.net  (signed by Thinknice Co., Limited)

Product:
4802_obw_istartsurf

Description:
WillLink

Version:
6.6.86.1677

MD5:
82f85a8a5763efeb31e83bb27d11557a

SHA-1:
11c4d05459b4244ecb2cd8e4000af44263cc4e7e

SHA-256:
8f3a880fdb912b4a78db7df1ecfa06e50ad2d4bf4fc0ba1eef1072e1116cb43e

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:
5/13/2024 6:52:27 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Thinknice.ThinkniceCo (M)
15.9.12.4

File size:
330.1 KB (338,040 bytes)

Product version:
6.6.86.1677

Copyright:
Copyright (C) WillLink System Lnk 2006

Original file name:
WillLink.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\obw_istartsurf.exe

Digital Signature
Signed by:
Thinknice Co., Limited

Authority:
GlobalSign nv-sa

Valid from:
9/6/2015 1:02:41 PM

Valid to:
10/21/2015 2:26:52 PM

Subject:
CN="Thinknice Co., Limited", O="Thinknice Co., Limited", L=香港, S=香港, C=HK

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121528E742BFE9208616B879CB05DA32392

File PE Metadata
Compilation timestamp:
9/11/2015 9:50:36 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:Jn9wuBHaxASwJVevnrjPekg7Cwbpz0S8TBAV4nnTpln4:Jn2OHaxAAPekg7lbpz0S8TOV4nU

Entry address:
0x18D92

Entry point:
E8, 2C, B7, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 8B, 45, 08, 85, C0, 74, 12, 83, E8, 08, 81, 38, DD, DD, 00, 00, 75, 07, 50, E8, F1, E7, FF, FF, 59, 5D, C3, 8B, FF, 55, 8B, EC, 83, EC, 10, A1, 10, E8, 43, 00, 33, C5, 89, 45, FC, 8B, 55, 18, 53, 33, DB, 56, 57, 3B, D3, 7E, 1F, 8B, 45, 14, 8B, CA, 49, 38, 18, 74, 08, 40, 3B, CB, 75, F6, 83, C9, FF, 8B, C2, 2B, C1, 48, 3B, C2, 7D, 01, 40, 89, 45, 18, 89, 5D, F8, 39, 5D, 24, 75, 0B, 8B, 45, 08, 8B, 00, 8B, 40, 04, 89, 45, 24, 8B, 35, 24, D0, 42, 00...
 
[+]

Code size:
175 KB (179,200 bytes)

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

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

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