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yet_another_cleaner_sk.exe

yac_downloader

Elex do Brasil Participações Ltda

The application yet_another_cleaner_sk.exe, “standard installer” by Elex do Brasil Participaçõesa has been detected as a potentially unwanted program by 7 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.yac.mx and multiple other hosts.
Publisher:
Elex do Brasil Participações Ltda  (signed and verified)

Product:
yac_downloader

Description:
standard installer

Version:
1.0.129.23196

MD5:
c41d9685b72b9045a60e6c38046df37a

SHA-1:
ce0d575fed4e54f4c5ae008bd833f0d70753a11f

SHA-256:
d714953c1d6bb9781bd4e03328a2d5f675f29ed13266c9370080141a7597c8c5

Scanner detections:
7 / 68

Status:
Potentially unwanted

Analysis date:
11/6/2024 4:58:55 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
TR/Elex.1031096
7.11.214.140

avast!
Win32:Rootkit-gen [Rtk]
2014.9-150309

Dr.Web
Adware.Mutabaha.163
9.0.1.068

ESET NOD32
Win32/ELEX.CC potentially unwanted (variant)
9.11283

Malwarebytes
FraudTool.YAC
v2015.03.09.07

McAfee
Artemis!C41D9685B72B
5600.6831

Reason Heuristics
PUP.Optional.Installer.ELEX
15.3.9.19

File size:
1006.9 KB (1,031,096 bytes)

Product version:
1.0.129.23196

Copyright:
Copyright 2011-2015 Elex do Brasil Participações Ltda. All rights reserved.

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

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

Digital Signature
Signed by:
Elex do Brasil Participações Ltda

Authority:
VeriSign, Inc.

Valid from:
6/23/2014 1:00:00 AM

Valid to:
6/21/2015 12:59:59 AM

Subject:
CN=Elex do Brasil Participações Ltda, O=Elex do Brasil Participações Ltda, L=São Paulo, S=São Paulo, C=BR

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:
5C6950D0A05A1CD63164D1E1EB1FFB8A

File PE Metadata
Compilation timestamp:
4/10/2010 1:19:23 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
24576:Q0aIKgp+o1/NaGAiFyULKsyU7RXl9JZRbVar7ClZXf0ePZhyhtuKt7:Q9E3FNF7Fy0Ksy2l3zYr7SXf3ZYnu6

Entry address:
0x33E9

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, 70, 85, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 80, 40, 00, 55, FF, 15, B0, 82, 40, 00, 6A, 08, A3, 78, 06, 47, 00, E8, 67, 27, 00, 00, 55, 68, B4, 02, 00, 00, A3, 90, 05, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 6C, 85, 40, 00, FF, 15, 80, 81, 40, 00, 68, 54, 85, 40, 00, 68, 80, 85, 46, 00, E8, 35, 26, 00, 00, FF, 15, B0, 80, 40, 00, 50, BF, A0, 10, 4C, 00, 57, E8, 23, 26, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
25 KB (25,600 bytes)

The file yet_another_cleaner_sk.exe has been seen being distributed by the following 2 URLs.

http://www.yac.mx/download/.../down.php?pt=rmv

http://www.yacss.com/.../6519400

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