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downloader.exe

Safe Download GTL

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application downloader.exe by Safe Download GTL 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 get.file23desktop.com.
Publisher:
Safe Download GTL  (signed and verified)

MD5:
b2c519decdd4db5b5881345ffa95bc47

SHA-1:
c3340a8d00794b473ed7239f0571574cefad0537

SHA-256:
7e54112293bd096d51dfa9b4778fdb8efa27af9f22a5904b54b14d4283e18f84

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:
12/24/2024 4:41:15 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.7.31.0

File size:
579.9 KB (593,776 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
Safe Download GTL

Authority:
thawte, Inc.

Valid from:
2/3/2015 4:00:00 AM

Valid to:
1/28/2016 3:59:59 AM

Subject:
CN=Safe Download GTL, O=Safe Download GTL, L=Dublin, S=Dublin, C=IE

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

Serial number:
2C2FDBF00C8B3CCF625D10D0B7EF5E67

File PE Metadata
Compilation timestamp:
12/6/2009 2:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:X1enxiV/qVMXVSLgDWiDQo3RaqHr/mhacuJ0ZyBwkJShMHQy+jL0b:X1en4qUMLEsqHr/ZDL9JSYeG

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:
7.9657

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://get.file23desktop.com/.../Get?p=5654&d=8701&l=8181&n=1&productname=Downloader&dynamicname=Downloader&filename=Downloader&d1=3310000&d2=3&d3=1&

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