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firefox setup stub 40.0.3.exe

7-Zip

Igor Pavlov

The executable firefox setup stub 40.0.3.exe has been detected as malware by 13 anti-virus scanners. This is a self-extracting archive and installer, however the file is not signed with an authenticode signature from a trusted source. Infected by an entry-point obscuring polymorphic file infector which will create a peer-to-peer botnet and receives URLs of additional files to download. The file has been seen being downloaded from download.mozilla.org.
Publisher:
Igor Pavlov

Product:
7-Zip

Description:
7z Setup SFX

Version:
4.42

MD5:
6cac600bbb87825c209ae434d0b417b9

SHA-1:
767e7db49b6dfde7329516d1ee674046ab8375ae

SHA-256:
5e69b3e5ebace23093f934a6d2682b9e416ffe883030cf6b2ccd281792dd0abc

Scanner detections:
13 / 68

Status:
File is infected by a Virus

Explanation:
The file is infected by a polymorphic file infector virus.

Analysis date:
4/26/2024 1:09:31 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Win32.Sality.3
5691347

avast!
Win32:SaliCode
160118-1

AVG
Win32/Sality
2015.0.4477

Dr.Web
Win32.Sector.30
9.0.1.05190

Emsisoft Anti-Malware
Win32.Sality
10.0.0.5366

ESET NOD32
Win32/Sality.NBA virus
7.0.302.0

F-Prot
W32/Sality.gen2
4.6.5.141

F-Secure
Win32.Sality.3
5.15.21

Kaspersky
Virus.Win32.Sality
15.0.0.562

McAfee
Virus.W32/Sality.gen.z
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.213.4031.0

Norman
Win32.Sality.3
11.01.2016 17:30:26

Sophos
Virus 'Mal/Sality-D'
5.22

File size:
313.1 KB (320,576 bytes)

Product version:
4.42

Copyright:
Copyright (c) 1999-2006 Igor Pavlov

Original file name:
7zS.sfx.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\firefox setup stub 40.0.3.exe

File PE Metadata
Compilation timestamp:
4/16/2014 10:29:40 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:Avc6rBQDbBU0C1pBv8uX8yK+/hFUYbr4X3x3cUAJy6j9OsSK0QAFkd/XyXT0RZ:AwDbBU0C1pBv8w8z+/hpbrUcUA0K99So

Entry address:
0x21E30

Entry point:
69, C1, 8B, 58, E4, 6B, 4E, 56, 68, 4F, 60, 9B, 00, 85, E8, 76, 05, B9, 14, 2A, 95, CE, 1B, C1, 49, 68, 7C, 24, 1D, 00, 56, 69, F9, 6B, E7, 40, 75, 88, E9, F7, C3, B6, 07, C9, E0, 6B, D2, 00, B9, A8, 95, AA, 41, F6, C1, 71, 70, 02, 14, 5E, 0F, BF, FF, 41, BB, E8, B6, 0B, 00, FF, CE, 8D, 3D, 2D, B4, E1, E1, 0F, BE, FA, 81, F3, FD, 0F, 00, 00, EB, 05, 0F, AF, F5, 22, EC, 03, D3, 84, C4, 81, EA, 14, B9, 0B, 00, 20, FF, 84, F6, 81, F1, A4, A6, 7B, BE, 0F, B7, CF, 69, F0, 20, 8C, B0, C1, 81, FA, D9, 00, 00, 00...
 
[+]

Entropy:
7.9182  (probably packed)

Code size:
40 KB (40,960 bytes)

The file firefox setup stub 40.0.3.exe has been seen being distributed by the following URL.

https://download.mozilla.org/?product=firefox-stub&os=win&lang=en-US

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