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7zip.exe

Tusoku

Platform Beta (Alpha Criteria Ltd)

The application 7zip.exe, “Tusoku Setup ” by Platform Beta (Alpha Criteria) 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 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 www.worldbodybyte.com and multiple other hosts.
Publisher:
Nanenede   (signed by Platform Beta (Alpha Criteria Ltd))

Product:
Tusoku

Description:
Tusoku Setup

MD5:
e325ceffd4795273b044b733b03db341

SHA-1:
09916c9a26100fd2f811d8eba81dd91bb406e390

SHA-256:
31afb009e2552aa720e64fadb38c1d19bfcaab8ba8e3e91c7eba02d5c5424494

Scanner detections:
1 / 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 also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
1/7/2025 9:30:01 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AC.Installer (M)
16.6.30.20

File size:
943.6 KB (966,256 bytes)

Product version:
3.5.1

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\7zip.exe

Digital Signature
Signed by:
Platform Beta (Alpha Criteria Ltd)

Authority:
GlobalSign nv-sa

Valid from:
12/16/2015 4:52:04 AM

Valid to:
7/27/2016 6:46:42 AM

Subject:
CN=Platform Beta (Alpha Criteria Ltd), O=Platform Beta (Alpha Criteria Ltd), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121ECC46F7F85712126CA9617071FBF3734

File PE Metadata
Compilation timestamp:
6/19/1992 3:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:7m0lfxxatWZQx03MimQy0pu2aWlFMhM4gmVF+:7mg2WZq0cLQnpuYlihM4gmV0

Entry address:
0xAA98

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 2E, 86, FF, FF, E8, 35, 98, FF, FF, E8, 9C, 9B, FF, FF, E8, B7, 9F, FF, FF, E8, 56, BF, FF, FF, E8, ED, E8, FF, FF, E8, 54, EA, FF, FF, 33, C0, 55, 68, 69, B1, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 32, B1, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, D0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, C2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, 24, 93, FF, FF, 8D, 55, F0, 33, C0, E8, 66, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9394

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

Code size:
40.5 KB (41,472 bytes)

The file 7zip.exe has been seen being distributed by the following 2 URLs.

http://www.worldbodybyte.com/c?x=RcXuJULXZ87XhB6hz6wVgGUTGrg1lAoT6nbbrsBfWEk=&c=Yn pjwbkqG69WC7PSlUXVTrdUrxZBMVAgQGTaKsarn6WwWkus/bBRwEfPnJYTPYyOdHsVdPCx0JHOC6m9s/Lxfzi6DOydkGTJKG29DIkyOwW71fNmJiVOGl59Ur5pFeI&downloadAs=7zip.exe&fallback_url=http://www.filegoat.com/7zip/.../7z1514.exe

http://www.worldbodybyte.com/c?x=KNLuaW1BJdMdOs9FE/hRNzVTQBQsefrjdIIduPwxBSc=&c=QbwTmG7njw4ooBGWsMm9IBWyusvLtIP4FhcKX2GURy5S4kg4hk4DuJKYmD7idyXs8swFSln583ijbHgPgUrkL4 ChnDqDwMUADhtk0Gwoa7GroSWUgqJMtnjw8ZnfOT6&downloadAs=7zip.exe&fallback_url=http://www.filegoat.com/7zip/.../7z1514.exe

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