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firefoxsetup.exe

7-Zip

YANDEX LLC

The application firefoxsetup.exe by YANDEX has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a setup and installation application and has been known to bundle potentially unwanted software. The file has been seen being downloaded from cache-kiev02.cdn.yandex.net and multiple other hosts.
Publisher:
Igor Pavlov  (signed by YANDEX LLC)

Product:
7-Zip

Description:
7z Setup SFX

Version:
4.42

MD5:
393c485041ec434f9d6c577c1f865629

SHA-1:
149ce1945635d4ff0705399b744462a9b58525c3

SHA-256:
ab2952ceaa77dfb424f8071f06e08f4d2c49f7870dc60121d5ba4b17eb0a0fa7

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
6/3/2024 12:26:26 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yandex.Installer.Installer.Meta (L)
16.1.6.20

File size:
49.6 MB (52,030,976 bytes)

Product version:
4.42

Copyright:
Copyright (c) 1999-2006 Igor Pavlov

Original file name:
7zS.sfx.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\opera\opera\temporary_downloads\firefoxsetup.exe

Digital Signature
Signed by:
YANDEX LLC

Authority:
VeriSign, Inc.

Valid from:
1/15/2013 2:00:00 AM

Valid to:
1/16/2016 1:59:59 AM

Subject:
CN=YANDEX LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=YANDEX LLC, L=Moscow, S=Moscow, C=RU

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:
3667E158B524C8FFBFE538172786F1E2

File PE Metadata
Compilation timestamp:
4/17/2014 8:29:40 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1572864:amGwybhTaAum4m3FGAunO5eMz9KgpbtmQtEyzqknvvg/:amEn1BunOVp3ZEymku

Entry address:
0x21610

Entry point:
60, BE, 00, 70, 41, 00, 8D, BE, 00, A0, FE, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, EF, 75, 09, 8B, 1E, 83, EE, FC, 11, DB, 73, E4, 31, C9, 83, E8, 03, 72, 0D, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 74, 89, C5, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, 75, 20, 41, 01, DB, 75...
 
[+]

Packer / compiler:
UPX 2.90LZMA

Code size:
44 KB (45,056 bytes)

The file firefoxsetup.exe has been seen being distributed by the following 3 URLs.

https://cache-kiev02.cdn.yandex.net/download.cdn.yandex.net/getfirefox/.../FirefoxSetup.exe

https://cache-kiev06.cdn.yandex.net/download.cdn.yandex.net/getfirefox/.../FirefoxSetup.exe

https://fx.yandex.ua/.../

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