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facebookmessenger_setup.exe

Rspark 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 facebookmessenger_setup.exe by Rspark 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 the user's temporary directory.
Publisher:
Rspark LLC  (signed and verified)

MD5:
69f9e7242d6efe6632a34e032203c5b6

SHA-1:
50e9f83bc44a0ebc8b1929bc9c8a79cb1414cf37

SHA-256:
9470a87a6bea90e2e94f46f7033094b403db0b635fa10910f146aaca4a49a25c

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:
4/25/2024 8:40:16 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.12.1.9

File size:
640.4 KB (655,792 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\facebookmessenger_setup.exe

Digital Signature
Signed by:
Rspark LLC

Authority:
DigiCert Inc

Valid from:
11/25/2013 5:30:00 AM

Valid to:
1/26/2015 5:30:00 PM

Subject:
CN=Rspark LLC, O=Rspark LLC, L=Seattle, S=Washington, C=US

Issuer:
CN=DigiCert High Assurance Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0976B99960384A542A28908A69282E73

File PE Metadata
Compilation timestamp:
6/20/1992 3:52:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:35vpC9oQH+yX0y2sLjdYFg2eXdiREA9W3jKOIs136Yf/LM3ibwPwY:35v89Nf2YewXdin9Ve6YLM3ibEwY

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.7274

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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