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d1ffb7cfc5.dll

Beta Rez

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module d1ffb7cfc5.dll by Beta Rez has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Beta Rez  (signed and verified)

MD5:
085781b634521c55db957643c3aa51d7

SHA-1:
a7943733be19eb42ef5c7921f90a778ca58d0b28

SHA-256:
d75dc4d73b476be5c681eeb6be8e8b9435abb4a53efe1861464150ca120149bb

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
5/4/2024 5:46:02 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
16.10.27.11

File size:
224.2 KB (229,616 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\beta rez\bin\d1ffb7cfc5.dll

Digital Signature
Signed by:
Beta Rez

Authority:
VeriSign, Inc.

Valid from:
3/10/2015 7:00:00 PM

Valid to:
4/9/2016 6:59:59 PM

Subject:
CN=Beta Rez, O=Beta Rez, L=Santa Monica, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
1EFCFAF7CDCBA99CF6B0644BA639545E

File PE Metadata
Compilation timestamp:
7/21/2015 3:19:55 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
3072:d/v98phJ7tZz5rF4w9Hv/kiVbZ6NVZ2PsKsggNor+Musqaw2+PDmqqqqqqq58rNi:d/V8ZtZHTNvPb+DK0NY62r+PZ8rNQ3v

Entry address:
0x1218C

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, D9, A9, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, 60, 25, 03, 10, E8, 25, 56, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, C0, 5E, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, 18, AB, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.5872

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

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