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installation.exe

Otopia Soft

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application installation.exe by Otopia Soft 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 clk1015.com.
Publisher:
Otopia Soft  (signed and verified)

MD5:
e3313390d8b82a00596797e6bc88572f

SHA-1:
5c5e9a1117719c9e9766082bec22c11f1139f416

SHA-256:
0c6185c35eeeb90b9b9c7c1b8f984507aaa9b5a8e9a17696af1eb3fd1e5adb0d

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:
11/6/2024 7:50:40 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.OtopiaSo.Bundler (M)
16.3.12.21

File size:
573.7 KB (587,464 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
Otopia Soft

Authority:
thawte, Inc.

Valid from:
12/16/2014 4:00:00 PM

Valid to:
12/17/2015 3:59:59 PM

Subject:
CN=Otopia Soft, O=Otopia Soft, L=Dublin, S=Dublin, C=IE

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

Serial number:
13322CE09A267D0E43AD6494E31B8A89

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:DAoGrzFLTcLNmQYb72ZuEXQk94UbQhvCvLti5YhMnpNNf99:DL8xhQYbCbX79z64tiCu/ff

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:
7.9738

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://clk1015.com/adServe/adClick?ai=rzP1JV4jgJV/rDKrl/9SwsbIr5jableYNbECUXxHcxgWy2OWHTq25xxsr62xb6h3T26xjgbKFcdd KOuQS8zulQYUu28L1yyGAP4PQeYYcQHW/YlsHuvKHAYSMvaP1bjWdlXSgW7Ljrk JVYK2wrAPjv0 OzHFpo4iwK1R6KVG0e8NmInSjEv97/.../OKKLCzZpTQayAPYBVNmK1S2tVmTIMbcPs0iqEiWVCdJjJrQru82wSCq84&src=BANNER&bt=banner_728x90_40

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