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installer_microsoft_excel_english.exe

Onekit Internet

The application installer_microsoft_excel_english.exe by Onekit Internet 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 OneKit Downloader installer. The file has been seen being downloaded from www.filewin.net.
Publisher:
Onekit Internet  (signed and verified)

MD5:
da350a2e5ea1c1267b3cf28bb9409f39

SHA-1:
fef9c4590aee87c9d4d250c51ffaa97a08f4d191

SHA-256:
8d67f4dafbf2cad8896e9a80bcb429bf1d946531d8a90dbeee8410f302b21cde

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/24/2024 8:59:10 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.OnekitInternet.Bundler (M)
16.4.11.8

File size:
841 KB (861,208 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OneKit Downloader (using Nullsoft Install System)

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

Digital Signature
Signed by:
Onekit Internet

Authority:
thawte, Inc.

Valid from:
3/4/2015 7:00:00 PM

Valid to:
3/4/2016 6:59:59 PM

Subject:
CN=Onekit Internet, O=Onekit Internet, L=Cerdanyola del valles, S=Barcelona, C=ES

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
40744793F55F4350CB4D2F030795E67F

File PE Metadata
Compilation timestamp:
12/5/2009 5:52:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:l+fQSWfYKVu7wKTGPHwrq6oRFkE2EhSJA4lhS6hM2mS+pXC8KC5Ihz1/RbfLlEyT:lKQhwR7xEHnhEXFmS+pS8pCLJbzVi2

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9871

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://www.filewin.net/.../down.php?numar=108&p=us-dnm

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