dynamocombo.dll

Dynamo Combo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module dynamocombo.dll by Dynamo Combo has been detected as adware by 21 anti-malware scanners. Additionally, the file is typically installed by a number of programs including Dynamo Combo by Yontoo Technology, Inc. and Buzzdock by Alactro LLC, both potentially unwanted software. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
Dynamo Combo  (signed and verified)

Product:
Dynamo Combo

Version:
1.0.0.6

MD5:
8f628c5da6eed5e1c8504b24f718d084

SHA-1:
cc0ef82cc78003d0a36a6d18582665c0bbe80f73

SHA-256:
75a794fd77d7edb1d2537ebd8c119dae13b9434a783d8d48991d0e4b12f50363

Scanner detections:
21 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
5/8/2024 11:30:07 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.AP
759

AhnLab V3 Security
Adware/Win32.BrowseFox
2015.01.07

Avira AntiVirus
ADWARE/BrowseFox.Gen2
7.11.199.188

AVG
BrowseFox.F
2016.0.3237

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1516

Bitdefender
Adware.BrowseFox.AP
1.0.20.30

Comodo Security
Application.Win32.BrowseFox.JM
20617

Dr.Web
Trojan.BPlug.142
9.0.1.06

Emsisoft Anti-Malware
Adware.BrowseFox.AP
8.15.01.06.02

ESET NOD32
Win32/BrowseFox (variant)
9.10972

F-Prot
W32/S-7bed2e86
v6.4.7.1.166

F-Secure
Adware.BrowseFox.AP
11.2015-06-01_3

G Data
Adware.BrowseFox.AP
15.1.24

K7 AntiVirus
Trojan
13.1814554

Malwarebytes
PUP.Optional.DynamoCombo.A
v2015.01.06.02

MicroWorld eScan
Adware.BrowseFox.AP
16.0.0.18

NANO AntiVirus
Trojan.Win32.BPlug.ddwtte
0.30.0.64448

nProtect
Adware.BrowseFox.AP
15.01.05.01

Qihoo 360 Security
HEUR/QVM30.1.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.DynamoCombo.L
15.1.6.14

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

File size:
244.7 KB (250,616 bytes)

Product version:
1.0.0.6

Copyright:
(c) Dynamo Combo. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\content.ie5\j0axhiga\dynamocombo.dll

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
12/17/2014 12:00:00 AM

Valid to:
12/17/2015 11:59:59 PM

Subject:
CN=Dynamo Combo, O=Dynamo Combo, L=Santa Monica, S=California, C=US

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:
14A953D6CFA5311EDEF6756B21556A7A

File PE Metadata
Compilation timestamp:
1/6/2015 11:32:18 AM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:UnZoaLABKWh3vpAC0yBzA3CJSd15+kxIaI+N7vChg:U3LABKU3v2CczxIA7Chg

Entry address:
0x12854

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 41, 8D, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, 90, 30, 03, 10, E8, BD, 01, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 24, 78, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, 1C, A5, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.3529

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

The file dynamocombo.dll has been discovered within the following programs.

Buzzdock  by Alactro LLC
This is a web browser extension that injects advertising. From the EULA: "Buzzdock is free to download and use. Buzzdock is supported by advertising, and users will see additional ads on websites where Buzzdock features operate.
www.buzzdock.com/faq-support
79% remove it
Dynamo Combo  by Yontoo Technology, Inc.
This is an adware injector that displays ads/banners in the user's web browser.
dynamocombo.info/support
88% remove it
 
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The file dynamocombo.dll has been seen being distributed by the following 4 URLs.

http://install-cdn.dynamocombo.info/bed?r=2015010708&bet=3

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