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discount_buddy.exe

Smart Apps

This is the installer application for a 50onRed advertising supported software package (displays ads in the browser and may hijack the home and search pages of the web browser). The application discount_buddy.exe by Smart Apps 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 Nullsoft Install System installer. The file has been seen being downloaded from www.updatesrv.com.
Publisher:
Smart Apps  (signed and verified)

MD5:
4d39ffc3fccd9d8c63bdcdea87d11635

SHA-1:
b7b964a242674a0e8bf2cc7e157bb6d00572f246

SHA-256:
63723164c46adbc71812c5915a0e5ebec249c52c2dcca96b971a759a6e011a6d

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.

Analysis date:
1/14/2025 9:11:36 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.50OnRed.SmartApp.Installer (M)
16.4.11.0

File size:
487 KB (498,720 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Nullsoft Install System

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\discount_buddy.exe

Digital Signature
Signed by:
Smart Apps

Authority:
Thawte, Inc.

Valid from:
3/25/2013 8:00:00 AM

Valid to:
3/26/2014 7:59:59 AM

Subject:
CN=Smart Apps, O=Smart Apps, L=Philadelphia, S=Pennsylvania, C=US

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
7CAFCF7841E5BDDF79F61691D678D0EC

File PE Metadata
Compilation timestamp:
2/19/2012 11:01:49 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.22

CTPH (ssdeep):
12288:Btobr9Hk8CKgwLYeCtpEoyuTGEUBSrHCzvBf482Bk3YO:Bti9HP6vfyuxESeTh92O

Entry address:
0x4327

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, AC, 01, 00, 00, FF, 15, 74, 93, 42, 00, C7, 04, 24, 01, 80, 00, 00, FF, 15, 58, 94, 42, 00, 53, C7, 04, 24, 00, 00, 00, 00, FF, 15, 98, 94, 42, 00, 56, A3, 40, 7B, 42, 00, C7, 04, 24, 08, 00, 00, 00, E8, 8D, 3B, 00, 00, A3, 9C, 7B, 42, 00, 8D, 85, 84, FE, FF, FF, 57, C7, 44, 24, 10, 00, 00, 00, 00, C7, 44, 24, 0C, 60, 01, 00, 00, 89, 44, 24, 08, C7, 44, 24, 04, 00, 00, 00, 00, C7, 04, 24, 01, B3, 40, 00, FF, 15, AC, 94, 42, 00, 83, EC, 14, C7, 44, 24, 04, 02, B3, 40, 00, C7...
 
[+]

Entropy:
7.8423  (probably packed)

Code size:
34.5 KB (35,328 bytes)

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

http://www.updatesrv.com/.../.eJw1jMEKgCAQBf9lz17MDPVnxHATSVRUCIr-vS3oOjPvXeBqtdGDEVKLhcFwfQcDMffhUsIGDOqruZokg7Nk_OpZLUJw9nd2Sy50OtHEiASkj9qKp_naytGxkeX3A3MdIpI.kKSgq1eRAa2Xu6jUGHdv8RxoJdE

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