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download.exe

OUTBROWSE

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application download.exe by OUTBROWSE 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 lax1.ib.adnxs.com.
Publisher:
OUTBROWSE  (signed and verified)

MD5:
ea8e7a2216a679d289853034cc5f4ea6

SHA-1:
49be5461685ab87c40cbb486f0cc2a0f10a98fa2

SHA-256:
c619c619e77d4ae2432d8de9600c7e20a8a52c743478edbc9bf8eb9e701b7bd8

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:
4/24/2024 3:31:18 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.Bundler (M)
16.7.4.22

File size:
620.5 KB (635,416 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\download.exe

Digital Signature
Signed by:
OUTBROWSE

Authority:
COMODO CA Limited

Valid from:
4/6/2014 5:00:00 PM

Valid to:
4/7/2015 4:59:59 PM

Subject:
CN=OUTBROWSE, O=OUTBROWSE, STREET=Bialik Number: 143, L=Ramat Gan, S=Israel, PostalCode=5252337, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00A5F03C3A375C11FD6C1C160EE8BFF923

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:ArBrgbrl42HZhMhO/+KkYTUrmxoSRLwUnW4giXhWZ1dfc8vy4h:AlUfK2HPF/+KPwmxLJwUn7lRWZ1i86

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, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9805

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://lax1.ib.adnxs.com/click?FAkZKXwPqj93q4UiDOSlP_Cnxks3ieU_d6uFIgzkpT8TCRkpfA-qP6JziCZGzWItn1PpJ8t9ukua8vRTAAAAAMoYMwAhCQAA_AcAAAIAAAAeOAIBnFgHAAAAAQBVU0QAVVNEACwBWALkVQAAxb4AAgUAAQIAAJQARSPqCAAAAAA./cnd=!BAa0OQi8xKkCEJ7wiAgYnLEdIAA./referrer=lax1.ib.adnxs.com/clickenc=http://get.file2desktop.com/.../Get?p=8723&d=12098&l=11517&n=1&productname=GoogleChrome&d1=103&d2=3348682&clickid=UAT_lax1CJ-npb-yuZ_dSxACGKLnobTiqLOxLSIOOTguMjI1LjEwOC4yMDkoATCa5dOfBQ..

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