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adobe_flash_setup.exe

Web

Advert-Servis, OOO

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application adobe_flash_setup.exe, “Web Setup ” by Advert-Servis, OOO 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 installCore installer. The file has been seen being downloaded from pcchecker.safesystemupgrade.org.
Publisher:
Installer Application   (signed by Advert-Servis, OOO)

Product:
Web

Description:
Web Setup

MD5:
cf034816bb13e9c17efa2b78ca7ca787

SHA-1:
892a0c451d0eda5964bbd845f8bc7bda4a1c5227

SHA-256:
82048655bbe14eaaac24666cd3307d9c0618517537f07d3b509341a69a007f72

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:
1/10/2025 12:40:10 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.AdvertSe.Installer (M)
16.7.10.15

File size:
813.3 KB (832,776 bytes)

Product version:
2.3.1

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
Advert-Servis, OOO

Authority:
COMODO CA Limited

Valid from:
3/16/2015 5:30:00 AM

Valid to:
3/16/2016 5:29:59 AM

Subject:
CN="Advert-Servis, OOO", O="Advert-Servis, OOO", STREET="2/11, str.2, ul.4-Ya Tverskaya-Yamskaya", L=Moscow, S=Moscow, PostalCode=125047, C=RU

Issuer:
CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00A30BC4BD9A7F4BFCE7E7551144A00BF6

File PE Metadata
Compilation timestamp:
6/20/1992 3:52:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:QhtjH/7kUwp9vbv4FgdaFfmXW2W/3T2u6sRpHvS:QvjH/7kUw/vbvp8mGN/3yu6y1vS

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.6855

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

http://pcchecker.safesystemupgrade.org/.../nO8pW9I3OLbW97Sh4BG03DAW3AII2F3Dc=&dist_id=644&channel=mbu_vsp_ind_rn&clkid={clickurl}&dp=3075656906.441598.2223950c4f.8074.3142640336eb7e6a5ea443efb7473570&s2=3075656906.441598.2223950c4f.8074.3142640336eb7e6a5ea443efb7473570

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