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office.exe

Extended Setup

The file is a bundle distribution and utilizes the installCore download manager to distribute this potentially unwanted software. The application office.exe by Extended Setup has been detected as adware by 14 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from office.logiciel-france.com.
Publisher:
Extended Setup  (signed and verified)

MD5:
8efe9ec25924a86160f47633880442d9

SHA-1:
e03d7f6caaa04619f92a2d7989188462ebafc3a3

SHA-256:
a644a0e604fed8c024288e1a867a7b069d9cc24c677d002999b46a56254e6908

Scanner detections:
14 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
5/4/2024 9:50:53 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.140.76

Comodo Security
Application.Win32.InstallCore.IC
18018

Dr.Web
Trojan.Packed.24524
9.0.1.027

ESET NOD32
Win32/InstallCore.IG
9.9614

Fortinet FortiGate
Riskware/InstallCore
1/27/2015

F-Prot
W32/A-42c63c6c
v6.4.7.1.166

Malwarebytes
PUP.Optional.InstallCore.A
v2015.01.27.10

McAfee
Artemis!8EFE9EC25924
5600.6873

Reason Heuristics
PUP.ironSource
15.1.27.10

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.15125

Sophos
Install Core Click run software
4.98

Trend Micro House Call
TROJ_GEN.F47V0114
7.2.27

Vba32 AntiVirus
Downware.InstallCore
3.12.24.3

VIPRE Antivirus
Adware.Win32.InstallCore.ba
27868

File size:
650.9 KB (666,488 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:
Extended Setup

Authority:
COMODO CA Limited

Valid from:
10/22/2013 2:00:00 AM

Valid to:
10/23/2014 1:59:59 AM

Subject:
CN=Extended Setup, O=Extended Setup, STREET=Lilienblum 28, L=Tel Aviv, S=Israel, PostalCode=6513307, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00DC2A1D7B17450E779685BAA191188498

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:MkOyMJfsG/GnXaAiBTy2eKPbOTJ0CIDd/belQbg3qcnoPSyiTnyPfnXvsB7K3rxb:dOyMJfsG0KzmKPbxZZg3qcnSSyGgI7KT

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

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

Code size:
36 KB (36,864 bytes)

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

http://office.logiciel-france.com/fr.asp

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