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installer.exe

Best Install tLl

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application installer.exe by Best Install tLl has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the OutBrowse Revenyou installer. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from getr.file8desktop.info.
Publisher:
MSQBT  (signed by Best Install tLl)

Product:
MSQBT

Version:
8076.151212.1198.4645

MD5:
9a44ecbea5edc0c4381fbf17a07dd019

SHA-1:
e042992715d6fd2b2d7919aec6339de203f13c7e

SHA-256:
c9872ade9d7751892127ae9dc7dd8445b8ca95448074c6602646e8fb3e027f01

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.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/29/2024 12:04:23 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.BestInstalltLl (M)
16.2.9.23

File size:
325.3 KB (333,152 bytes)

Product version:
8076.151212.1198.4645

Copyright:
MSQBT

Trademarks:
MSQBT

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

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

Digital Signature
Signed by:
Best Install tLl

Authority:
thawte, Inc.

Valid from:
11/24/2015 3:00:00 AM

Valid to:
1/27/2017 2:59:59 AM

Subject:
CN=Best Install tLl, O=Best Install tLl, L=Dublin, S=Dublin, C=IE

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

Serial number:
55102FDA18C16EE5D8DDEDF2A1342F5E

File PE Metadata
Compilation timestamp:
12/6/2009 1:52:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:2FJ04IZs8szPOIwD/EBPNHKQTE6bLZ7JX29g3GI5ZN3NRKF/MbcViRoK7qAQGjUA:2I+8ywDGEmZ7lqg20N3fO0bcPK7OGjU

Entry address:
0x30FA

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, 18, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://getr.file8desktop.info/22222222222222/.../get55?p=19363&d=27712&l=26943&n=1&productname=Reimage&filename=Installer&con=1

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