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setup.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 setup.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. The file has been seen being downloaded from download.file8desktop.com.
Publisher:
LMHBM  (signed by BEst inSTall TLl)

Product:
LMHBM

Version:
4583.15813.1190.1663

MD5:
6c712be3c129108efb9b95d7b694a349

SHA-1:
26174a23db41c31f4126d6c61c3149dd9caff2c7

SHA-256:
b2bdab8b2f616b37a011489f852f854ab330d968c0ef82265d9d88041a2165c9

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
11/5/2024 11:47:47 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.BEstinST.Bundler (M)
16.5.21.0

File size:
809.8 KB (829,216 bytes)

Product version:
4583.15813.1190.1663

Copyright:
LMHBM

Trademarks:
LMHBM

File type:
Executable application (Win32 EXE)

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

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

Digital Signature
Signed by:
BEst inSTall TLl

Authority:
thawte, Inc.

Valid from:
6/30/2015 1:00:00 AM

Valid to:
1/27/2016 11:59:59 PM

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:
505027BABCC52AD6A1AB7C1CB900B9B9

File PE Metadata
Compilation timestamp:
12/5/2009 10:52:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:KLdv+HFLouRO+TphjQfpCOy28hUi8pI86:KRGHF8GPAfpVyEi8pN

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

http://download.file8desktop.com/1439487170/.../1439487170?80254612389X2VyMDE5b3BpNSgecDsuLCwxJGE1KSgyNzIiZjwvMzErHm47KyJeMDsqKR1cMjsoLSBjMTolKB5kMjgpKyViMjUkKSZkZGhfbV9qXTRrZXJwbCBiamZbYmFkO3JLTVMyTS45PzE0Mj4rQktEMSlBQTRMTSBoYWxmNDE0JGtuZjwv

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