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setup.exe

Rolimno

This is the installer and setup program from the Rolimno branded Yontoo adware web browser extension. This adware injects various forms of advertisements in the user's web browser based on the HTML content and URLs viewed. Ad include banners, in-line context text links, coupons, and search. The program will install an auto-updating background service that will update the software with additional features. The application setup.exe by Rolimno has been detected as adware by 7 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. 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:
Rolimno  (signed and verified)

MD5:
5ec1c08c44ddd57357b9ae75c53c31e2

SHA-1:
39fc01e514c1f677a2ae2689c56f61166aa7c249

SHA-256:
6baf7035a655139f5b6bdd33ecda98653d672f019e7ba6325207509b2d41ebb5

Scanner detections:
7 / 68

Status:
Adware

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

Analysis date:
5/11/2024 1:37:35 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Searcher.2574
9.0.1.0365

ESET NOD32
Win32/BrowseFox (variant)
7.8910

Malwarebytes
PUP.Optional.Rolimno.A
v2013.12.31.03

McAfee
Artemis!5EC1C08C44DD
5600.7264

Reason Heuristics
PUP.Installer.Rolimno.F
14.8.8.0

Trend Micro House Call
TROJ_GEN.F47V0914
7.2.365

VIPRE Antivirus
Yontoo
22340

File size:
763.1 KB (781,376 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\setup.exe

Digital Signature
Signed by:
Rolimno

Authority:
VeriSign, Inc.

Valid from:
8/13/2013 4:30:00 AM

Valid to:
8/14/2015 4:29:59 AM

Subject:
CN=Rolimno, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Rolimno, L=San Diego, 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:
0D2645238961D2084208FC4B5B89E7FD

File PE Metadata
Compilation timestamp:
12/6/2009 2:20:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:PMmMSdcHq/G/8y6Mk5Lhew9GumfYwR+Q++/v1u7KMjiQ31zLqKSdcHq/G/8Ko:PMms87MAhDRiYwR+Q+rGMFlF8p

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9862

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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

http://wpc.0952.edgecastcdn.net/800952/.../setup.exe

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

TCP (HTTP):
Connects to wac.edgecastcdn.net  (72.21.81.13:80)

TCP (HTTP):
Connects to service.yontoo.com  (8.25.35.148:80)

TCP (HTTP):
Connects to api.yontoo.com  (8.25.35.15:80)

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