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LookThisUp.exe

Sea Bug

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application LookThisUp.exe by Sea Bug has been detected as adware by 4 anti-malware scanners. This executable runs as a local area network (LAN) Internet proxy server listening on port 52115 and has the ability to intercept and modify all inbound and outbound Internet traffic on the local host. This file is typically installed with the program LookThisUp by Sea Bug, LLC which is a potentially unwanted software program.
Publisher:
LookThisUp  (signed by Sea Bug)

Product:
LookThisUp

Version:
1.0

MD5:
3f5e085aee158316765b2620f23bd049

SHA-1:
7fa41160c662c8bb12385eb739638d11d65a9274

SHA-256:
3b3581846b6c878133142eecd33f4efcfb1ac32c86ed27a916f9a06ab96036b3

Scanner detections:
4 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/25/2024 1:57:01 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3345

ESET NOD32
MSIL/Adware.iBryte (variant)
8.10445

Malwarebytes
PUP.Optional.LookThisUp.A
v2014.09.20.07

Reason Heuristics
PUP.SeaBug.K
14.9.20.19

File size:
1.8 MB (1,848,976 bytes)

Product version:
1.0

Copyright:
Copyright © LookThisUp 2014

Original file name:
LookThisUp.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\roaming\lookthisup\lookthisup.exe

Digital Signature
Signed by:
Sea Bug

Authority:
GoDaddy.com, Inc.

Valid from:
7/25/2014 4:59:04 PM

Valid to:
7/25/2015 4:59:04 PM

Subject:
CN=Sea Bug, O=Sea Bug, L=Orange, S=California, C=US

Issuer:
CN=Go Daddy Secure Certificate Authority - G2, OU=http://certs.godaddy.com/repository/, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
081CF04D6E5726

File PE Metadata
Compilation timestamp:
9/20/2014 2:03:11 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
49152:8WkIiYdGmZfzii40YtQo+tvyOGZsvznwT:8bQzf2iXoOGZ2r8

Entry address:
0x1C1F36

Entry point:
FF, 25, 00, 20, 40, 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, 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, 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, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
7.5646

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

Code size:
1.8 MB (1,835,008 bytes)

Local Proxy Server
Proxy for:
Internet Settings

Local host address:
http://127.0.0.1:52115/

Local host port:
52115

Default credentials:
No


The file LookThisUp.exe has been discovered within the following program.

LookThisUp  by Sea Bug, LLC
LookThisUp is an adware Internet extension that will inject advertisements to the browser on web pages that are not affiliated with the ads or the extension. Ads will be places as new ads that would not normally appear.
lookthisup.net
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The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to in2.us2.msg.vip.bf1.yahoo.com  (72.30.203.14:80)

TCP:
Connects to ee-in-f188.1e100.net  (173.194.65.188:5228)

TCP (HTTP SSL):
Connects to edge-star-shv-03-ash5.facebook.com  (173.252.112.23:443)

TCP (HTTP):
Connects to ec2-54-208-30-101.compute-1.amazonaws.com  (54.208.30.101:80)

TCP (HTTP):
Connects to ec2-107-23-157-120.compute-1.amazonaws.com  (107.23.157.120:80)

TCP (HTTP):
Connects to cf-199-27-134-48.cloudflare.com  (199.27.134.48:8080)

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