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left 4 dead 2.exe

Salyutem Plyus LLC

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application left 4 dead 2.exe by Salyutem Plyus 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 b3xkpz5njeb4sc9.incomebox.ru.
Publisher:
Salyutem Plyus LLC  (signed and verified)

Version:
1.0.0.0

MD5:
f42170242b9a76bce2bbff857671fb17

SHA-1:
c1e3e425ce1a86df86e779a9fc21024102eaf753

SHA-256:
a7b0183ab1444f74f4651d6fbb50fb483959dc874631b3826cda8fe93bcd24e0

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:
1/16/2025 12:16:06 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.Salyutem.Bundler (M)
16.3.22.16

File size:
3.8 MB (4,003,760 bytes)

Product version:
1.0.0.0

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou

Common path:
C:\users\{user}\downloads\left 4 dead 2.exe

Digital Signature
Signed by:
Salyutem Plyus LLC

Authority:
thawte, Inc.

Valid from:
12/15/2014 2:00:00 AM

Valid to:
12/16/2015 1:59:59 AM

Subject:
CN=Salyutem Plyus LLC, O=Salyutem Plyus LLC, L=Kharkiv, S=Arkansas, C=UA

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

Serial number:
6B6BB9E1A48F64F47503D8DCF6A5D0D3

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
98304:CwztIC090vfAQcpwvDHLbqGub4z9dapZENZ/yt2/:9MvKvD/qG++KpZO/U2/

Entry address:
0xE7E960

Entry point:
60, BE, 00, 90, F7, 00, 8D, BE, 00, 80, 48, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Packer / compiler:
UPX 2.90LZMA

Code size:
3 MB (3,170,304 bytes)

The file left 4 dead 2.exe has been seen being distributed by the following URL.

http://b3xkpz5njeb4sc9.incomebox.ru/ZnBrdmVnbHRxanZ7InZlciI6IjEiLCJzaWQiOiIzOTg1IiwidXJsIjoiaHR0cDovL3RvcnJlbnQzLnJ1L3VwbG9hZHMvdG9ycmVudC9MZWZ0LTQtRGVhZC0yLnRvcnJlbnQiLCJuYW1lIjoiTGVmdCA0IERlYWQgMi50b3JyZW50IiwidHlwZSI6InRvcnJlbnQiLCJybmQwIjo5OTg2OTUxNzI4MzUxNH0

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