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setup.exe

7-Zip

Installer Setup

This is part of the Air Installer, a download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application setup.exe by Installer Setup 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 AirInstaller Download Manager installer. The file has been seen being downloaded from secure-nym.adnxs.com.
Publisher:
Igor Pavlov  (signed by Installer Setup)

Product:
7-Zip

Description:
7z SFX

Version:
9.20

MD5:
3af6633954f73821f8e2349dadab928c

SHA-1:
a6398502f08f75c1f4dd461334431f691b495efa

SHA-256:
65819194f71f88ccd2776d5d2638ebfa9b2bab0d0866ebad10e94d3242efeab0

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.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
8/5/2025 2:07:57 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Installe.Installer (M)
16.5.17.19

File size:
1.1 MB (1,151,928 bytes)

Product version:
9.20

Copyright:
Copyright (c) 1999-2010 Igor Pavlov

Original file name:
7z.sfx.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

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

Digital Signature
Signed by:
Installer Setup

Authority:
Symantec Corporation

Valid from:
2/9/2015 7:00:00 PM

Valid to:
2/10/2016 6:59:59 PM

Subject:
CN=Installer Setup, O=Installer Setup, L=Vancouver, S=British Columbia, C=CA

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
07A1307B10CFA227F3AF56F353208204

File PE Metadata
Compilation timestamp:
11/18/2010 11:27:33 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:GWvknOMEfcsQpQYS+peuxYpERDrNQD+l0YgBTkIm5:GUeOMmfzCeoskIu

Entry address:
0x1D262

Entry point:
55, 8B, EC, 6A, FF, 68, 20, 1E, 42, 00, 68, 5C, D2, 41, 00, 64, A1, 00, 00, 00, 00, 50, 64, 89, 25, 00, 00, 00, 00, 83, EC, 68, 53, 56, 57, 89, 65, E8, 33, DB, 89, 5D, FC, 6A, 02, FF, 15, 04, 11, 42, 00, 59, 83, 0D, 90, BD, 42, 00, FF, 83, 0D, 94, BD, 42, 00, FF, FF, 15, 00, 11, 42, 00, 8B, 0D, 70, 9D, 42, 00, 89, 08, FF, 15, FC, 10, 42, 00, 8B, 0D, 6C, 9D, 42, 00, 89, 08, A1, 64, 11, 42, 00, 8B, 00, A3, 8C, BD, 42, 00, E8, 1C, 01, 00, 00, 39, 1D, 20, 7A, 42, 00, 75, 0C, 68, EA, D3, 41, 00, FF, 15, 0C, 11...
 
[+]

Entropy:
6.9651

Developed / compiled with:
Microsoft Visual C++ v6.0

Code size:
126.6 KB (129,684 bytes)

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

https://secure-nym.adnxs.com/click?3EmTMETO5D93bPyXRtrgPwrXo3A9Cu8_d2z8l0ba4D_cSZMwRM7kP5TESayFNdBiudZBeQSX1kzjgEVUAAAAAGCpOACtCQAAdgIAAAIAAACCqB0BFfcHAAAAAQBVU0QAVVNEACwB-gDIygAAwdAAAgUAAQIAAJYA2CrNuQAAAAA./cnd=!iwaAPQjtqq4CEILR9ggYle4fIAA./referrer=get3.adobe.com/clickenc=http://www.mydownloadhome.com/.../201?pub_id=90&sub_id=nym1CLmth8rH4KXrTBACGJSJp-LasI3oYiIONzYuMTEwLjE2Ni4xOTgoATDjgZaiBQ..&tag=

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