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office installer.exe

The application office installer.exe has been detected as a potentially unwanted program by 20 anti-malware scanners. The program is a setup application that uses the Inno Setup installer, however the file is not signed with an authenticode signature from a trusted source. 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 begin.downloadscenter.com and multiple other hosts.
MD5:
ebefcf577f55271c22bca2258e0f9079

SHA-1:
ba921d19318ffc1a63007e09d4ff1dd786311fba

SHA-256:
c6081e752a95465e2bfff5e435d48d829a98804725959bf2442793be0ed22055

Scanner detections:
20 / 68

Status:
Potentially unwanted

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

Analysis date:
12/28/2024 10:25:48 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Trojan.Generic.11683617
801

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.177.134

Bitdefender
Trojan.Generic.11683617
1.0.20.1645

Comodo Security
ApplicUnwnt
19755

Dr.Web
Trojan.Packed.24524
9.0.1.0329

Emsisoft Anti-Malware
Trojan.Generic.11683617
8.14.11.25.04

ESET NOD32
Win32/InstallCore.BY (variant)
8.10541

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

F-Secure
Trojan.Generic.11683617
11.2014-25-11_3

G Data
Trojan.Generic.11683617
14.11.24

K7 AntiVirus
Unwanted-Program
13.183.13630

Malwarebytes
PUP.Optional.Freemium.A
v2014.11.25.04

MicroWorld eScan
Trojan.Generic.11683617
15.0.0.987

nProtect
Trojan.Generic.11683617
14.10.08.01

Panda Antivirus
PUP/MultiToolbar.A
14.11.25.04

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.141123

Sophos
Install Core Click run software
4.98

Vba32 AntiVirus
Downware.InstallCore
3.12.26.3

VIPRE Antivirus
InstallCore
33794

File size:
629.1 KB (644,240 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

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

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:dyMJfsGx4iUfk0xV2bThmCSjVdAUPX4RIFcDhZQ/ag9gA8CF:dyMJfsViUubT6jnpXHelZQ/ag9pX

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...
 
[+]

Entropy:
7.7644

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

Code size:
36 KB (36,864 bytes)

The file office installer.exe has been seen being distributed by the following 2 URLs.

http://begin.downloadscenter.com/.../Office Installer.exe

http://install.downloadscenter.com/installer/.../download?s=yb&k= powerpoint&q=powerpoint&m=e&ad=3442350896

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