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setup.exe

BeST ApP

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 ApP 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 get.up1004.info.
Publisher:
MZGKL  (signed by BeST ApP)

Product:
MZGKL

Version:
3751.15915.888.6243

MD5:
20255b7d3cc78af5f02742e9a969f464

SHA-1:
47d0c088e0f9d3fd66aa20fa6225e176d9ea98f4

SHA-256:
f28642fbb205af6fce6892c0fa56199058abc8e1f1ee10823f14af6bc57c3eb6

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:
12/26/2024 11:58:03 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.BeSTApP.Bundler (M)
16.5.5.12

File size:
557.3 KB (570,720 bytes)

Product version:
3751.15915.888.6243

Copyright:
MZGKL

Trademarks:
MZGKL

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
BeST ApP

Authority:
thawte, Inc.

Valid from:
6/30/2015 9:00:00 AM

Valid to:
12/18/2015 8:59:59 AM

Subject:
CN=BeST ApP, O=BeST ApP, L=Dublin, S=Dublin, C=IE

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

Serial number:
64E1250DF629BD3901AA90A77D70239E

File PE Metadata
Compilation timestamp:
12/6/2009 7:52:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:hjX7ZkVOpbybe7GG+bAl4Ub9hVOFE2hHS7FkiL/EHWvSb/j1:hnZ52kO6LOus+Fkgvi

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...
 
[+]

Entropy:
7.8509

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://get.up1004.info/1442326971/.../1442326971?83619201579X2JuMSs9cHFnNigebTcyJzAyJV82KSgvMzYdaj0wMTIrHms3Lx1iMTw0KScrI14xNCsxJV8sNCUuIGMrOy0wIV0sNSorJV1nbGRpWmRdOm1ka3NwJV5lYFtoY2M0dUVVUC5CTlJONDoyMUwvRz5FPyw3LDZRJWRcZmY6LS8dbnJrOCodW2xoPCg

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